33 Kamailio Jobs

About Company: Our client is a French multinational information technology (IT) services and consulting company, headquartered in Paris, France. Founded in 1967, It has been a leader in business transformation for over 50 years, leveraging technology to address a wide range of business needs, from strategy and design to managing operations. The company is committed to unleashing human energy through technology for an inclusive and sustainable future, helping organizations accelerate their transition to a digital and sustainable world. They provide a variety of services, including consulting, technology, professional, and outsourcing services. Job Title: VOIP Engineer Location: Pune,Hyderabad Experience: 6+ years Employment Type: Contract to hire Work Mode: Hybrid Notice Period: - Immediate joiners Job Responsibilities: Primary SKill : VOIP, Kamailio Secondary SKill: High Performance Communication VoIP Solutions: Extensive experience in deploying and managing open-source telephony platforms, including Kamailio for SIP routing, Asterisk for PBX functionalities, and PJSIP for advanced SIP handling. Skilled in integrating these technologies to create scalable, high-performance communication systems tailored to business needs. Show more Show less

Job Description: We are seeking a highly skilled Telephony Integration Developer with deep expertise in SIP (Session Initiation Protocol) and SIPREC (SIP Recording) to join our growing team. You will be responsible for designing, developing, and integrating telephony systems with a strong emphasis on VoIP communication, call recording, and SIP signaling. Responsibilities: ● Design and implement telephony integrations using SIP and SIPREC. ● Develop APIs and backend services to handle call control, call recording, and session management. ● Work with PBX systems, SIP Servers, and Media Servers for SIP call flows and media capture. ● Integrate third-party VoIP systems with internal applications and platforms. ● Analyze and troubleshoot SIP signaling and RTP media flows. ● Collaborate with cross-functional teams including DevOps, Product, and QA to deliver scalable solutions. ● Create technical documentation, diagrams, and support material. ● Ensure systems are secure, resilient, and scalable. Must-Have Skills: ● Strong experience with SIP protocol (INVITE, ACK, BYE, REGISTER, REFER OPTIONS, etc.) ● Practical experience with SIPREC for recording VoIP calls. ● Solid development skills in JavaScript (Node.js). ● Experience working with SIP Servers (e.g., FreeSWITCH, Asterisk, Kamailio, OpenSIPS). ● Hands-on knowledge of WebRTC, RTP streams, and VoIP media handling. ● Experience building and consuming RESTful APIs. ● Familiarity with call flows, SIP traces analysis (using Wireshark, sngrep, or similar). ● Strong understanding of networking basics (UDP, TCP, NAT traversal, STUN/TURN). ● Ability to troubleshoot and debug complex telephony and media issues. Good to Have Skills: ● Experience with Media Servers (e.g., Janus, Kurento, Mediasoup). ● Knowledge of Call Recording Systems architecture and compliance standards (PCI-DSS, GDPR). ● Experience with Cloud Telephony Platforms (Twilio, Genesys Cloud, Amazon Chime SDK, etc.). ● Familiarity with Session Border Controllers (SBCs). ● Prior experience with SIP trunking and carrier integrations. ● Exposure to Protocol Buffers or gRPC for real-time messaging. ● Understanding of security practices in VoIP (TLS, SRTP, SIP over WebSockets). ● Knowledge of Docker and Kubernetes for deploying SIP services at scale. ● Sound knowledge of telecom protocols like SIP/ICE/STUN/TURN/SRTP/DTLS/H323/Diameter/Radius ● Shall be thoroughly analytical and fix issues for SBC Portfolio of Products ● Shall be thorough with Linux/RTOS internals and product Architecture is preferred ● Strong Knowledge of TCP/UDP/IP and networking concepts is a must ● Knowledge of IP telephony, SIP, Call Routing Techniques of ARS, AAR on Trunk config environment ● Prior Experience on working with FreeSwitch, Kamailio & RTP Proxy, etc ● Strong understanding of Audio streaming/websockets and their application in real-time communication systems. ● In-depth knowledge of audio codecs and their impact on voice quality and bandwidth utilization. ● Experience with gRPC and Protobuf for building efficient and scalable communication interfaces. ● Extensive experience in large scale product development in Enterprise, webRTC, VoIP, VoLTE based products Base Language/Framework: ● Primary Language: JavaScript (Node.js backend) ● Frameworks/Tools: Express.js, Socket.io (for signaling if needed), Wireshark (for debugging), Sngrep. Show more Show less

As a Senior Kamailio (VoIP) Developer, you must take complete ownership of supporting all VoIP infrastructure, debugging issues related to specific servers or software, or remote clients such as SIP devices (both virtual such as soft-phone or WebRTC client, and physical such as a desk phone or an on-premise PBX), and providing fixes. Experience with Open Source VoIP applications such as Kamailio, OpenSIPS, FreeSWITCH, RTPEngine or RTPProxy, and open source tools such as Wireshark, sngrep, and Homer Experience with High Availability, geographically redundant, and load-balanced applications of FreeSwitch and Kamailio, with Call Center functionality, Presence, and SIP Registrations Working FreeSWITCH carrier experience to handle 10,000+ concurrent calls Good knowledge of RTP Proxy and routed audio conferences concept where media would flow via free switch RTP Proxy FreeSWITCH - Listening to all events generated by Kamailio or events from FreeSwitch such as those exposed using esl/mod_event_socket Support customers during EST timezone during critical releases or emergency incidents 5+ yrs of supporting global VoIP services and/or applications on cloud-based servers. Expertise in SIP call flow analysis and debugging Expertise in setup and maintaining SIP-based monitoring, debugging, and alerting services Experience scripting call flow, dialplan, and custom routing with FreeSwitch using LUA and XML Experience in debugging Kamailio and Freeswitch-based applications is a must Good problem-solving and analytical skills Excellent written and verbal communication Experience working with open-source projects Exposure to SIP Carrier Integration Advanced Experience with cloud media infrastructure (load balancers, gateways, SBCs, STUN, TURN) Advanced Knowledge of all modern VoIP protocols/platforms including (SIP, RTP stack & SDP, RTCP, TCP, UDP, SIP, HTTPS, SSL/TLS) Working Knowledge of Network Usage Scenarios and understanding of Internet Traffic with the general flow of Routing, Ports, Firewalls, and Packet Flow Experience with any load testing tools for FreeSwitch/Kamailio to ensure scalability and acceptable minimum load tolerances, such as automated dialplan testing, calls per second testing (CPS), transcoding validation, and playback verification Working understanding and knowledge of codecs such as PCMU, G722, and Opus and how to efficiently transcode codecs, or optimize and prevent call quality issues by signal updates for optimized codec renegotiation Ability to create and maintain geo-redundant and highly available and optimized MySQL and/or PostgresSQL based database infrastructure (with working understanding of vertical and horizontal sharding) Excellent troubleshooting skills and working knowledge of IPTables, Fail2ban, wireshark, tcpdum, sipp Understanding of SIP security such as acceptable or unacceptable requests, and how to respond/honeypot Experience with containers and automation tools such as Kubernetes, Docker, Ansible, Jenkins, Nomad. Advanced working knowledge and experience to set up and maintain a geographically redundant and highly scalable SQL backend Working experience implementing and testing HA scenarios and automated fail-over tests Experience with CloudFlare products (such as WebSockets, SIP, and RTP over Magic Transit) Experience working with AWS, GCS Kubernetes is a plus Experience with Linux, open source tools and shell scripting Experience with video conferences and video transcoding is a plus Develop and maintain automation of code deployment (AWS, k8s, CI/CD, etc.) Experience with AMQP protocol with Kamailio and FreeSwitch (such as RabbitMQ / Kafka) Experience with real-time RTP processing for transcription and predictive response handling using internal applications or third party services Show more Show less

We’re hiring a VoIP/SIP Engineer with deep expertise in large-scale real-time communication, SIP (LiveKit, OpenSIPS, Asterisk, Kamailio, etc.), and seamless human-AI call flows. What You’ll Do Architect, build, and scale high-concurrency VoIP platforms (think 10,000+ concurrent calls, multi-tenant). Deep-dive into SIP stack (LiveKit, OpenSIPS, etc.), optimize call routing, failover, and reliability. Integrate state-of-the-art AI voice agents into live voice traffic (real-time TTS/STT, call hand-off, etc.). Solve for ultra-low latency and seamless transfer between human and AI agents. Design for global scaling, redundancy, and compliance. Be the go-to expert for SIP security, NAT traversal, media streaming, protocol optimization, and troubleshooting at scale. You Must Have Proven experience architecting & running large-scale SIP/VoIP infrastructure (real-world scale, not “lab only”). Hands-on expertise with LiveKit, OpenSIPS, Kamailio, or similar platforms. Real experience with AI voice/telephony integration (TTS, STT, call control APIs, LLM workflow integration). Mastery of call concurrency, load balancing, RTP/media streaming, SBCs, NAT/firewall handling, etc. Solid skills in troubleshooting, profiling, and scaling real-time distributed systems. Track record of automating deployment/management (Kubernetes/Docker/Cloud infra). Clear, direct communication—no fluff. Bonus Experience with CPaaS integrations (Twilio, Plivo, Vonage). Knowledge of call center automation or conversational AI platforms. Past projects with high-throughput WebRTC/SIP hybrids. Who Should Apply If you’re the person that others call when their VoIP stack melts under load or when AI voice integration hits a wall, we want you. You’re comfortable being the authority in the room—and delivering solutions that work at scale. Show more Show less

We are hiring a NOC Engineer with strong hands-on experience in Asterisk, VoIP, SIP, Linux, and Networking. The ideal candidate will be a proactive problem-solver with expertise in scripting (Bash/Python), telephony protocols, and open-source tools. Key Skills Required: Asterisk, SIP, VoIP Linux (Ubuntu/CentOS/Debian) TCP/IP, NAT, PAT, Firewalls Bash, Perl, PHP, Python MySQL, MongoDB Kamailio/OpenSIPS (Preferred) Telephony troubleshooting & monitoring Interested candidates can send their CV to Swastipriya.Singh@voiptechsolutions.com Or call to 78942 80219 Job Type: Full-time Pay: ₹50,000.00 - ₹100,000.00 per month Benefits: Food provided Schedule: Day shift Supplemental Pay: Overtime pay Performance bonus Ability to commute/relocate: Patia, Bhubaneswar, Orissa: Reliably commute or planning to relocate before starting work (Preferred) Experience: 10years: 5 years (Preferred) Location: Patia, Bhubaneswar, Orissa (Preferred) Work Location: In person Application Deadline: 25/06/2025

Redefine the future of customer experiences. One conversation at a time. We’re changing the game with a first-of-its-kind, conversation-centric platform that unifies team collaboration and customer experience in one place. Powered by AI, built by amazing humans. Our culture is forward-thinking, customer-obsessed and built on an unwavering belief that connection fuels business and life; connections to our customers with our signature Amazing Service®, our products and services, and most importantly, each other. Since 2008, 100,000+ companies and 1M+ users rely on Nextiva for customer and team communication. If you’re ready to collaborate and create with amazing people, let your personality shine and be on the frontlines of helping businesses deliver amazing experiences, you’re in the right place. Build Amazing - Deliver Amazing - Live Amazing - Be Amazing We are looking for a highly skilled VOIP Application Engineer to join our team. In this role, you will be responsible for the design, implementation, and maintenance of VOIP (Voice over IP) applications, ensuring their reliability, performance, and scalability. You will work closely with engineering, operations, and product teams to ensure seamless integration of VOIP services and contribute to the development of new voice-related features and products. The ideal candidate will have hands-on experience with VOIP technologies, application troubleshooting, and integration in cloud-based or on-premise environments. A strong understanding of VOIP protocols (SIP, RTP, WebRTC), telephony systems, and the ability to develop and support VOIP applications will be crucial to success in this role. Key Responsibilities VOIP Application Design & Development: Develop and maintain high-quality VOIP applications that meet customer needs, focusing on reliability, performance, and scalability System Integration: Integrate VOIP solutions with third-party systems, ensuring seamless communication between internal and external platforms Troubleshooting & Issue Resolution: Provide support for complex VOIP issues, including system failures, call quality problems, and application errors. Work to quickly diagnose and resolve issues Collaboration with Teams: Work closely with cross-functional teams, including engineering, product management, and operations, to ensure seamless deployment and operation of VOIP applications Testing & Quality Assurance: Test new VOIP features, products, and services, ensuring they meet quality standards before deployment Documentation: Create and maintain technical documentation for VOIP applications, including system architecture, troubleshooting guides, and integration processes Optimization: Continuously monitor and optimize VOIP applications to improve performance, scalability, and user experience Security & Compliance: Ensure VOIP applications meet security standards and compliance requirements Customer Support: Assist internal and external teams with troubleshooting, providing solutions, and offering expert guidance on VOIP-related issues Innovation: Stay current with emerging VOIP technologies and trends, contributing to the development of new features and improvements to existing applications Qualifications Experience: At least 5 years of experience in VOIP application engineering, including hands-on experience with VOIP technologies such as SIP, RTP, WebRTC, and telephony systems Technical Skills: Strong knowledge of VOIP protocols, including SIP (Session Initiation Protocol) and RTP (Real-Time Protocol) Experience with VOIP platforms such as Asterisk, FreeSWITCH, or Kamailio Familiarity with cloud environments (AWS, GCP, or Azure) and basic networking concepts such as firewalls, NAT, and QoS Knowledge of programming languages such as Python, Java, or JavaScript for application development and automation Experience with SQL and NoSQL databases for managing voice data Understanding of WebRTC and web-based communication protocols is a plus Problem Solving: Strong troubleshooting and problem-solving skills with the ability to diagnose and resolve VOIP-related issues quickly Communication Skills: Excellent written and verbal communication skills, with the ability to explain complex technical concepts to both technical and non-technical audiences Team Collaboration: Proven ability to work well within a cross-functional team environment and collaborate effectively with engineers, product teams, and other stakeholders Analytical Mindset: Strong analytical skills and attention to detail, with the ability to assess complex technical challenges and provide practical solutions Customer Focused: Ability to understand customer requirements and translate them into reliable, high-quality VOIP applications Preferred Qualifications Experience with cloud-native technologies, including containers, Kubernetes, and CI/CD pipelines Exposure to BroadSoft or BroadWorks platforms Familiarity with SIP trunks, media gateways, and IVR systems Knowledge of networking protocols (TCP/IP, DNS, HTTP/S) and voice quality metrics (MOS, jitter, latency) Nextiva DNA (Core Competencies) Nextiva’s most successful team members share common traits and behaviors: Drives Results: Action-oriented with a passion for solving problems. They bring clarity and simplicity to ambiguous situations, challenge the status quo, and ask what can be done differently. They lead and drive change, celebrating success to build more success. Critical Thinker: Understands the "why" and identifies key drivers, learning from the past. They are fact-based and data-driven, forward-thinking, and see problems a few steps ahead. They provide options, recommendations, and actions, understanding risks and dependencies. Right Attitude: They are team-oriented, collaborative, competitive, and hate losing. They are resilient, able to bounce back from setbacks, zoom in and out, and get in the trenches to help solve important problems. They cultivate a culture of service, learning, support, and respect, caring for customers and teams. Total Rewards Our Total Rewards offerings are designed to allow our employees to take care of themselves and their families so they can be their best, in and out of the office. Our compensation packages are tailored to each role and candidate's qualifications. We consider a wide range of factors, including skills, experience, training, and certifications, when determining compensation. We aim to offer competitive salaries or wages that reflect the value you bring to our team. Depending on the position, compensation may include base salary and/or hourly wages, incentives, or bonuses. Medical 🩺 - Medical insurance coverage is available for employees, their spouse, and up to two dependent children with a limit of 500,000 INR, as well as their parents or in-laws for up to 300,000 INR. This comprehensive coverage ensures that essential healthcare needs are met for the entire family unit, providing peace of mind and security in times of medical necessity. Group Term & Group Personal Accident Insurance 💼 - Provides insurance coverage against the risk of death / injury during the policy period sustained due to an accident caused by violent, visible & external means. Coverage Type - Employee Only Sum Insured - 3 times of annual CTC with minimum cap of INR 10,00,000 Free Cover Limit - 1.5 Crore Work-Life Balance ⚖️ - 15 days of Privilege leaves per calendar year, 6 days of Paid Sick leave per calendar year, 6 days of Casual leave per calendar year. Paid 26 weeks of Maternity leaves, 1 week of Paternity leave, a day off on your Birthday, and paid holidays Financial Security💰 - Provident Fund & Gratuity Wellness 🤸‍ - Employee Assistance Program and comprehensive wellness initiatives Growth 🌱 - Access to ongoing learning and development opportunities and career advancement At Nextiva, we're committed to supporting our employees' health, well-being, and professional growth. Join us and build a rewarding career! Established in 2008 and headquartered in Scottsdale, Arizona, Nextiva secured $200M from Goldman Sachs in late 2021, valuing the company at $2.7B.To check out what’s going on at Nextiva, check us out on Instagram, Instagram (MX), YouTube, LinkedIn, and the Nextiva blog. Show more Show less

Tech Support Department: Avhan platforms create new paradigms in technology delivery and platform integration in the Digital “Connected” business world. Tech Support department plays a critical role in effective cloud services delivery and Customer Account Management. Key functions of this department are : · Manages all Jodo product Support issues with internal Product and QA teams · Manages Jodo Cloud Deployment activities with Cloud vendors (for Jodo Public cloud) as well as with Cloud vendors or clients (for Private Cloud) and with internal Product and QA teams All activities are primarily performed remotely, with very rare client-site level support. For operations in US and other geographies, deployment and P1 and P2 issues are managed from India. There is a plan to outsource other support issues to local support partners, to facilitate effective management of local languages, culture and time zones. In Future, we will also start outsourcing the Infra setup and P1 / P2 management to outsourced partners after all support processes are documented and training content has been standardised. Avhan Support Function is required to develop, publish and administer (train) best practices in implementation, change management / upgradation as well as trouble shoot for partners as well as for customers. Specifics - 1. Remote support is delivered via – “Avhan Support Exchange”( internal Avhan platform), and in case of client managed Private cloud deliveries - other remote access technologies are used. 2. Jodo Public & Private Cloud Services are delivered either as colocation engagement with Cloud Data Center providers or with Cloud providers like AWS, Google etc.. 3. For internal activities and team management, Avhan uses Redmine Project Management tool is used. (similar to JIRA) Responsibilities: Maintain Platform and infra uptime (including Cloud and network) and SLA for Jodo Cloud installations in India and other geographies Provide Tech Support to clients within SLA Manage Product upgradations including patch updates, CR delivery Communications and coordination with Client as well as vendor teams Specific responsibilities - 1. Manage Customer Support activities - Monitor and maintain SLA for Product support to customers for Help Desk Tickets as per internal and client SLA agreements 2. Monitor Cloud infra (& proactively track) – - error & exceptions logs - backup schedules of database, recordings, other data - system and team check points - daily infrastructure usage – identify underutilization of infra elements and consolidate it to reduce infra billing - infra utilization patterns and fine tune auto scaling parameters to minimize cost and improve product performance - routine & repetitive tasks - attempt automation, monitoring of identified points - Monitor product instances, servers for performance and bottlenecks 3. Jodo Platform Management – - Schedule and perform patch updates of Jodo Product, Database, operating system, and third-party components as per pre-defined checklist - Plan and execute / manage implementation of Jodo products within defined timelines - automate process of patch updates - Prepare hourly / daily checklist, automate and monitor execution of checklist 4. Effective communication and co-ordination – - Pro-active up-dating of clients to ensure smooth operations and high customer satisfaction. - Pro-active communication and effective discussion with internal colleagues given Team & Company objectives - Pro-actively co-ordinate with the development, QA teams and have an effective release process. (Cloud / SaaS / Services) 5. Product Training – - Train customer technical teams for management of Avhan Systems at time of implementation and up-gradation. - Ensure effective client user training post implementation - Update and Deliver technical training for existing and new customers - Develop product FAQ for setup, operation and troubleshooting - Develop Product training videos for self learning, troubleshooting - Analyse follow-up \ repetitive queries or issues, etc. and attempt to reduce them working with various internal and external parties. 6. Team Management – - Manage support & implementation team - Roster to ensure availability of support team all the time -Training of team - Hiring & Employee retention Additional Job details: · Avhan supports clients business operations across different global locations and you will be required to be available to your team members at different hours in a day. You will have to schedule your work and availability as per the work tasks. · In case of an emergency, you are expected to extend working hour Educational Qualifications and General work Experience 1. Educational – · B.E. / B.TECH / M. TECH. / M.E. / MCA / M.Sc. from Computer science / Electronics stream · Project Management certifications preferred 2. Skills – - Excellent Communication skills - written and spoken – English - High process orientation with proven skills in process creation, documentation and process delivery management - Leadership and team management skills - Excellent Customer Management Skills - Project Management - Time Management 4. Experience – - Essential – - At least 3-5 years of experience as individual contributor in technology implementation and management for Cloud Software Products in Enterprise, Contact Centers / SaaS / PaaS / IaaS organization. - At least 1 to 2 years of managerial / supervisory experience - Best practices for software incident support, SLA matrix setup. Essential Technical Skills & Experience: Experience in – - Managing Linux based Virtual Machines, Tomcat Web server deployment and best practices. - MySQL / MariaDB – Execute queries, performance monitoring, Backup / Restore Technical awareness of – - Firewalls, Proxies / Reverse Proxies, Load Balancer - Following protocols: SIP, HTTP / HTTPS, SMTP, POP3, IMAP, Strong understanding of networking technologies including TCP/IP, IPV6, DHCP, VLAN, QoS, VoIP, various WAN technologies (Leased Line, MPLS, VPN etc.) - Knowledge of Information Security and Network technologies for Cloud based solution delivery and management - Awareness of Asterisk / FreeSWITCH, Kamailio SIP Proxy Desirable Skills: - Self-motivated, hard-working individuals with proven exceptional technical and achievements are sought. - Relevant exposure to either of following client industry verticals: BFSI, Travel, Insurance, BPO - Experience in Implementation, management & maintenance of VoIP solutions. - Using SIP / VoIP monitoring tools and exposure to Cloud unified communications and cloud Contact Center platforms - Knowledge of the software life-cycle process, release and change management processes and best practices. Job Types: Full-time, Permanent Pay: ₹600,000.00 - ₹800,000.00 per year Benefits: Health insurance Provident Fund Schedule: Monday to Friday Rotational shift Weekend availability Supplemental Pay: Yearly bonus Ability to commute/relocate: Dadar, Mumbai, Maharashtra: Reliably commute or planning to relocate before starting work (Required) Application Question(s): How do you handle challenges or conflicts in the workplace? How many years of Managing cloud infrastructure (AWS, GCP, private clouds) experience do you have? What is your current ctc? What is your current notice period? What is your salary expectations? How many years of in SLA-driven support and incident management experience do you have? Do you have experience in Application Support? If yes How many years of experience do you have? Do you have Strong knowledge of MySQL/MariaDB with Galera Cluster (queries, backups, and performance monitoring), Do you Understand of network technologies (TCP/IP, HTTPS, DNS, VoIP, VPNs, Load Balancer, firewalls), Experience: Application support: 3 years (Required) Managing team: 2 years (Required) Shift availability: Day Shift (Required) Night Shift (Required) Work Location: In person Application Deadline: 30/06/2025 Expected Start Date: 10/06/2025

Tech Support Department: Avhan platforms create new paradigms in technology delivery and platform integration in the Digital “Connected” business world. Tech Support department plays a critical role in effective cloud services delivery and Customer Account Management. Key functions of this department are : · Manages all Jodo product Support issues with internal Product and QA teams · Manages Jodo Cloud Deployment activities with Cloud vendors (for Jodo Public cloud) as well as with Cloud vendors or clients (for Private Cloud) and with internal Product and QA teams All activities are primarily performed remotely, with very rare client-site level support. For operations in US and other geographies, deployment and P1 and P2 issues are managed from India. There is a plan to outsource other support issues to local support partners, to facilitate effective management of local languages, culture and time zones. In Future, we will also start outsourcing the Infra setup and P1 / P2 management to outsourced partners after all support processes are documented and training content has been standardised. Avhan Support Function is required to develop, publish and administer (train) best practices in implementation, change management / upgradation as well as trouble shoot for partners as well as for customers. Specifics - 1. Remote support is delivered via – “Avhan Support Exchange”( internal Avhan platform), and in case of client managed Private cloud deliveries - other remote access technologies are used. 2. Jodo Public & Private Cloud Services are delivered either as colocation engagement with Cloud Data Center providers or with Cloud providers like AWS, Google etc.. 3. For internal activities and team management, Avhan uses Redmine Project Management tool is used. (similar to JIRA) Responsibilities: Maintain Platform and infra uptime (including Cloud and network) and SLA for Jodo Cloud installations in India and other geographies Provide Tech Support to clients within SLA Manage Product upgradations including patch updates, CR delivery Communications and coordination with Client as well as vendor teams Specific responsibilities - 1. Manage Customer Support activities - Monitor and maintain SLA for Product support to customers for Help Desk Tickets as per internal and client SLA agreements 2. Monitor Cloud infra (& proactively track) – - error & exceptions logs - backup schedules of database, recordings, other data - system and team check points - daily infrastructure usage – identify underutilization of infra elements and consolidate it to reduce infra billing - infra utilization patterns and fine tune auto scaling parameters to minimize cost and improve product performance - routine & repetitive tasks - attempt automation, monitoring of identified points - Monitor product instances, servers for performance and bottlenecks 3. Jodo Platform Management – - Schedule and perform patch updates of Jodo Product, Database, operating system, and third-party components as per pre-defined checklist - Plan and execute / manage implementation of Jodo products within defined timelines - automate process of patch updates - Prepare hourly / daily checklist, automate and monitor execution of checklist 4. Effective communication and co-ordination – - Pro-active up-dating of clients to ensure smooth operations and high customer satisfaction. - Pro-active communication and effective discussion with internal colleagues given Team & Company objectives - Pro-actively co-ordinate with the development, QA teams and have an effective release process. (Cloud / SaaS / Services) 5. Product Training – - Train customer technical teams for management of Avhan Systems at time of implementation and up-gradation. - Ensure effective client user training post implementation - Update and Deliver technical training for existing and new customers - Develop product FAQ for setup, operation and troubleshooting - Develop Product training videos for self learning, troubleshooting - Analyse follow-up \ repetitive queries or issues, etc. and attempt to reduce them working with various internal and external parties. 6. Team Management – - Manage support & implementation team - Roster to ensure availability of support team all the time -Training of team - Hiring & Employee retention Additional Job details: · Avhan supports clients business operations across different global locations and you will be required to be available to your team members at different hours in a day. You will have to schedule your work and availability as per the work tasks. · In case of an emergency, you are expected to extend working hour Educational Qualifications and General work Experience 1. Educational – · B.E. / B.TECH / M. TECH. / M.E. / MCA / M.Sc. from Computer science / Electronics stream · Project Management certifications preferred 2. Skills – - Excellent Communication skills - written and spoken – English - High process orientation with proven skills in process creation, documentation and process delivery management - Leadership and team management skills - Excellent Customer Management Skills - Project Management - Time Management 4. Experience – - Essential – - At least 3-5 years of experience as individual contributor in technology implementation and management for Cloud Software Products in Enterprise, Contact Centers / SaaS / PaaS / IaaS organization. - At least 1 to 2 years of managerial / supervisory experience - Best practices for software incident support, SLA matrix setup. Essential Technical Skills & Experience: Experience in – - Managing Linux based Virtual Machines, Tomcat Web server deployment and best practices. - MySQL / MariaDB – Execute queries, performance monitoring, Backup / Restore Technical awareness of – - Firewalls, Proxies / Reverse Proxies, Load Balancer - Following protocols: SIP, HTTP / HTTPS, SMTP, POP3, IMAP, Strong understanding of networking technologies including TCP/IP, IPV6, DHCP, VLAN, QoS, VoIP, various WAN technologies (Leased Line, MPLS, VPN etc.) - Knowledge of Information Security and Network technologies for Cloud based solution delivery and management - Awareness of Asterisk / FreeSWITCH, Kamailio SIP Proxy Desirable Skills: - Self-motivated, hard-working individuals with proven exceptional technical and achievements are sought. - Relevant exposure to either of following client industry verticals: BFSI, Travel, Insurance, BPO - Experience in Implementation, management & maintenance of VoIP solutions. - Using SIP / VoIP monitoring tools and exposure to Cloud unified communications and cloud Contact Center platforms - Knowledge of the software life-cycle process, release and change management processes and best practices. Job Types: Full-time, Permanent Pay: ₹600,000.00 - ₹800,000.00 per year Benefits: Health insurance Provident Fund Schedule: Monday to Friday Rotational shift Weekend availability Supplemental Pay: Yearly bonus Ability to commute/relocate: Dadar, Mumbai, Maharashtra: Reliably commute or planning to relocate before starting work (Required) Application Question(s): How do you handle challenges or conflicts in the workplace? How many years of Managing cloud infrastructure (AWS, GCP, private clouds) experience do you have? What is your current ctc? What is your current notice period? What is your salary expectations? How many years of in SLA-driven support and incident management experience do you have? Do you have experience in Application Support? If yes How many years of experience do you have? Do you have Strong knowledge of MySQL/MariaDB with Galera Cluster (queries, backups, and performance monitoring), Do you Understand of network technologies (TCP/IP, HTTPS, DNS, VoIP, VPNs, Load Balancer, firewalls), Experience: Application support: 3 years (Required) Managing team: 2 years (Required) Shift availability: Day Shift (Required) Night Shift (Required) Work Location: In person Application Deadline: 30/06/2025 Expected Start Date: 10/06/2025

Requirements & Qualifications 10+ years of hands-on experience in designing Omnichannel communication platforms, with specific expertise in Asterisk, FreeSWITCH, Kamailio, and related technologies. Proficiency in troubleshooting networking and telephony issues using Wireshark or similar tools. Experience with queuing mechanisms (e.g., RabbitMQ), TTS/ASR engines (e.g., Azure, Amazon Polly, Google), WebRTC, CRM integrations, and cloud deployment (e.g., Azure, AWS). Strong database management skills (e.g., MySQL, SQL Server, MongoDB, Redis, PostgreSQL) and scripting languages (e.g., Python, PHP, Perl, Java). Excellent communication skills and ability to collaborate with cross-functional teams. Bachelor’s or Master’s degree in Computer Science or a related field. Certification in VoIP technologies (e.g., Asterisk Certified Engineer, FreeSWITCH Certified Specialist). Experience with Agile/Scrum methodologies and CI/CD pipelines. Contributions to open-source Voice projects or a strong GitHub profile showcasing relevant projects. Show more Show less

Hiring NOC Engineer (3–5 yrs) in Kolkata. Must have experience in Asterisk, VoIP, Linux, SIP, networking, scripting, and MySQL. Preferred: Kamailio/OpenSIPS, telephony tools, and custom PBX. Strong troubleshooting and teamwork skills are needed.

Sprinklr is a leading enterprise software company for all customer-facing functions. With advanced AI, Sprinklr's unified customer experience management (Unified-CXM) platform helps companies deliver human experiences to every customer, every time, across any modern channel. Headquartered in New York City with employees around the world, Sprinklr works with more than 1,000 of the world’s most valuable enterprises — global brands like Microsoft, P&G, Samsung and more than 50% of the Fortune 100. Learn more about our culture and how we make our employees happier through The Sprinklr Way . Job Description Design and implement VOIP (signaling and media) infrastructure using FreeSWITCH, Kamailio/OpenSIPs, and RTPEngine Architect session border controllers (SBC), NAT traversal, load balancing, and failover strategies Define standards for call rou8ng and audio quality op8miza8on (codecs, jieer, etc.) Lead ini8a8ves for scalability, observability, security, and resiliency of our voice infrastructure Troubleshoot live traffic and provide technical leadership during major incidents Collaborate with Backend and API teams to design provisioning, billing, and call analy8cs APIs Evaluate and onboard open-source tools or commercial carriers as needed Coach and mentor junior/lead engineers in VoIP best prac8ces. What Makes You Qualified 12+ years of hands-on experience in the Telephony / VoIP / CPaaS domain Strong knowledge of VoIP Protocols (SIP/SDP, RTP/RTCP), Networking fundamentals (UDP/TCP/IP, DNS, MPLS), QoS (latency, jieer, packet loss mi8ga8on). Hands-on experience with Session Border Controller (SBC), Media Servers and WebRTC. Expert-level understanding of SIP, RTP, NAT traversal (ICE/STUN/TURN), and VoIP security (TLS, SRTP, fraud preven8on) Hands-on development experience with FreeSWITCH, Kamailio/OpenSIPs, and RTPEngine Experience in designing carrier-grade telephony plaXorms serving millions of calls Strong systems programming and debugging skills in C/C++ Strong troubleshoo8ng skills, with experience using network monitoring and debugging tools. Familiarity with distributed systems and cloud-based deployments (AWS, GCP, Azure) Excellent problem-solving, debugging, and performance tuning skills Why You'll Love Sprinklr: We're committed to creating a culture where you feel like you belong, are happier today than you were yesterday, and your contributions matter. At Sprinklr, we passionately, genuinely care. For full-time employees, we provide a range of comprehensive health plans, leading well-being programs, and financial protection for you and your family through a range of global and localized plans throughout the world. For more information on Sprinklr Benefits around the world, head to https://sprinklrbenefits.com/ to browse our country-specific benefits guides. We focus on our mission: We founded Sprinklr with one mission: to enable every organization on the planet to make their customers happier. Our vision is to be the world’s most loved enterprise software company, ever. We believe in our product: Sprinklr was built from the ground up to enable a brand’s digital transformation. Its platform provides every customer-facing team with the ability to reach, engage, and listen to customers around the world. At Sprinklr, we have many of the world's largest brands as our clients, and our employees have the opportunity to work closely alongside them. We invest in our people: At Sprinklr, we believe every human has the potential to be amazing. We empower each Sprinklrite in the journey toward achieving their personal and professional best. For wellbeing, this includes daily meditation breaks, virtual fitness, and access to Headspace. We have continuous learning opportunities available with LinkedIn Learning and more. EEO - Our philosophy: Our goal is to ensure every employee feels like they belong and are operating in a judgment-free zone regardless of gender, race, ethnicity, age, and lifestyle preference, among others. We value and celebrate diversity and fervently believe every employee matters and should be respected and heard. We believe we are stronger when we belong because collectively, we’re more innovative, creative, and successful. Sprinklr is proud to be an equal-opportunity workplace and is an affirmative-action employer. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, or Veteran status. See also Sprinklr’s EEO Policy and EEO is the Law. Show more Show less

Job Summary: We are looking for a Kamailio & FreeSWITCH Engineer with expertise in VoIP protocols, Linux administration, web servers, and MySQL databases to maintain and optimize our telecommunications infrastructure. Key Responsibilities: Kamailio SIP Server Management Configure, maintain, and troubleshoot SIP routing. FreeSWITCH Administration – Install, optimize, and debug VoIP functionalities. Linux OS & Web Server – Manage Ubuntu/CentOS , NGINX, and Apache for high performance. Database Management – Optimize MySQL databases for scalability. Collaboration & Support – Work with teams to deploy features and troubleshoot issues. Required Skills: Proven experience with Kamailio & FreeSWITCH Strong knowledge of Linux OS & VoIP protocols (SIP, RTP) Expertise in NGINX, Apache, and MySQL Hands-on experience with scripting (Shell, Python) Problem-solving mindset & ability to work in a fast-paced environment Preferred Qualifications: Familiarity with AWS/Azure cloud platforms Knowledge of virtualization tools (VMware, Proxmox) Experience in high-availability and load-balancing configurations Location: Hyderabad Employment Type: Full-Time Experience: Minimum 1 year

Overview: Dive into the world of telecom protocols, network traffic, and real-time systems. This role focuses on building realistic traffic simulations, testing contact centre systems, and applying automation to network assurance. What You’ll Do: Simulate telecom traffic (SIP, RTP, VoIP) and analyse system behaviour Use tools like SIPp, Wireshark, or Scapy to create and test call flows Create IVR and contact centre load test cases with 5K–10K call capacity Analyse packet flows using Wireshark, tcpdump, and protocol traces (SIP, RTP, HTTP, Diameter) Collaborate on telecom AI assurance and anomaly detection initiatives Develop telecom network lab environments (RAN, Core, OSS, BSS) using open-source tools Explore testing frameworks and open-source automation libraries Contribute to chaos engineering concepts and performance testing What We’re Looking For: Solid understanding of network fundamentals and protocols (SIP, RTP, IMS, VoLTE) Hands-on experience with Linux CLI, scripting (Bash/Python), and packet analysis tools Curiosity about telecom systems, packet behaviour, and system observability Strong documentation habits and attention to detail Bonus Points: Experience with SIPp, Scapy, or IVR testing frameworks Familiarity with Kamailio, OpenSIPS, FreeSWITCH, Asterisk, or PJSIP Exposure to tools like OpenAirInterface, srsRAN, O-RAN SC, Open5GS, Free5GC, UERANSIM, Magma, ONAP Interest in 5G, virtualisation, or telco cloud Familiarity with Jenkins, Python-based automation, or Robot Framework Show more Show less

Sprinklr is a leading enterprise software company for all customer-facing functions. With advanced AI, Sprinklr's unified customer experience management (Unified-CXM) platform helps companies deliver human experiences to every customer, every time, across any modern channel. Headquartered in New York City with employees around the world, Sprinklr works with more than 1,000 of the world’s most valuable enterprises - global brands like Microsoft, P&G, Samsung and more than 50% of the Fortune 100. What Does Success Look Like? We are seeking a Lead VoIP Engineer to design and build high-performance modules within our Voice platform. You’ll work on the core telephony stack involving signaling, media processing, NAT traversal, and RTP relaying. This is a hands-on execution role ideal for engineers who love building, debugging, and optimizing real-time communication systems. Seniority Level: Lead Individual Contributor What You’ll Do: Implement core voice capabilities using FreeSWITCH, Kamailio/OpenSIPs, and RTPEngine. Build and optimize SIP call routing logic, RTP media relays , failover mechanisms, and NAT traversal. Develop and manage configurations for scalability, codec negotiation, SIP trunk registration . Implement and test features like call recording, IVR, voicemail, DTMF detection. Monitor live traffic and participate in 24x7 on-call rotation for critical escalations. Collaborate with QA on stress/load testing and with Backend teams on provisioning APIs. Document design decisions, configurations, and troubleshooting runbooks. What Makes You Qualified? 7+ years of experience building and operating VoIP systems or CPaaS platforms . Solid expertise with SIP signaling, RTP, and media relay techniques . Strong hands-on with FreeSWITCH, Kamailio/OpenSIPs, RTPEngine . Hands-on experience with Session Border Controller (SBC), Media Servers and WebRTC . Experience in managing telephony infrastructure for uptime, latency, and call quality optimization. Strong systems programming and debugging skills in C/C++ . Good scripting/debugging skills ( Bash, Python, or Lua for FreeSWITCH modules ). Proficiency with diagnostic tools ( Wireshark, tcpdump etc ). Experience working with geographically distributed infrastructure or HA deployments. Show more Show less

About the Role: We’re looking for a skilled FreeSWITCH Developer with deep experience in OpenSIPS and/or Kamailio to join our core VoIP engineering team. This is a hands-on role where you’ll architect, build, and maintain robust SIP-based communication systems. If solving complex signaling challenges and scaling VoIP infrastructure excites you, you’re in the right place. What You’ll Be Doing: - Build and maintain scalable VoIP services using FreeSWITCH. - Configure and manage SIP proxies (OpenSIPS, Kamailio) for routing, load balancing, and NAT traversal. - Develop and fine-tune dialplans, call flows, and scripts in Lua, Python, or JavaScript. - Troubleshoot signaling/media issues using tools like Wireshark, sngrep, and FreeSWITCH logs. - Integrate VoIP systems with external APIs, databases, CRMs, and billing platforms. - Ensure security, uptime, and scalability across the voice infrastructure. - Document systems and contribute to architectural decisions. What You Bring: - 3+ years working with FreeSWITCH in production environments. - Strong grasp of the SIP protocol and related RFCs. - Practical experience with OpenSIPS and/or Kamailio configuration. - Deep troubleshooting skills using tools like Wireshark, sngrep, HOMER/HEPIC. - Scripting experience (Lua, Bash, Python, JS). - Solid understanding of VoIP architecture, NAT traversal, and RTP handling. - Linux systems admin experience (Ubuntu, Debian, CentOS). Bonus Points For: - Experience integrating WebRTC. - Knowledge of rtpproxy, rtpengine. - Monitoring with Grafana, Prometheus, or HEPIC. - Containerized environments using Docker/Kubernetes. - Billing or CRM system integration experience. What You’ll Get - Competitive salary. - Flexible hours with remote work options. - Direct impact on production systems and architecture. - A chance to work with advanced VoIP technologies. - Smart, supportive teammates who love what they do. Ready to Apply? If you're passionate about VoIP and building high-performance SIP systems, we want to hear from you. Send your resume and a brief cover letter to info@riopath.com . Show more Show less

Redefine the future of customer experiences. One conversation at a time. We’re changing the game with a first-of-its-kind, conversation-centric platform that unifies team collaboration and customer experience in one place. Powered by AI, built by amazing humans. Our culture is forward-thinking, customer-obsessed and built on an unwavering belief that connection fuels business and life; connections to our customers with our signature Amazing Service®, our products and services, and most importantly, each other. Since 2008, 100,000+ companies and 1M+ users rely on Nextiva for customer and team communication. If you’re ready to collaborate and create with amazing people, let your personality shine and be on the frontlines of helping businesses deliver amazing experiences, you’re in the right place. Build Amazing - Deliver Amazing - Live Amazing - Be Amazing We are looking for a highly skilled VOIP Application Engineer to join our team. In this role, you will be responsible for the design, implementation, and maintenance of VOIP (Voice over IP) applications, ensuring their reliability, performance, and scalability. You will work closely with engineering, operations, and product teams to ensure seamless integration of VOIP services and contribute to the development of new voice-related features and products. The ideal candidate will have hands-on experience with VOIP technologies, application troubleshooting, and integration in cloud-based or on-premise environments. A strong understanding of VOIP protocols (SIP, RTP, WebRTC), telephony systems, and the ability to develop and support VOIP applications will be crucial to success in this role. Key Responsibilities VOIP Application Design & Development: Develop and maintain high-quality VOIP applications that meet customer needs, focusing on reliability, performance, and scalability. System Integration: Integrate VOIP solutions with third-party systems, ensuring seamless communication between internal and external platforms. Troubleshooting & Issue Resolution: Provide support for complex VOIP issues, including system failures, call quality problems, and application errors. Work to quickly diagnose and resolve issues. Collaboration with Teams: Work closely with cross-functional teams, including engineering, product management, and operations, to ensure seamless deployment and operation of VOIP applications. Testing & Quality Assurance: Test new VOIP features, products, and services, ensuring they meet quality standards before deployment. Documentation: Create and maintain technical documentation for VOIP applications, including system architecture, troubleshooting guides, and integration processes. Optimization: Continuously monitor and optimize VOIP applications to improve performance, scalability, and user experience. Security & Compliance: Ensure VOIP applications meet security standards and compliance requirements. Customer Support: Assist internal and external teams with troubleshooting, providing solutions, and offering expert guidance on VOIP-related issues. Innovation: Stay current with emerging VOIP technologies and trends, contributing to the development of new features and improvements to existing applications. Qualifications Experience: At least 4 years of experience in VOIP application engineering, including hands-on experience with VOIP technologies such as SIP, RTP, WebRTC, and telephony systems. Technical Skills: Strong knowledge of VOIP protocols, including SIP (Session Initiation Protocol) and RTP (Real-Time Protocol). Experience with VOIP platforms such as Asterisk, FreeSWITCH, or Kamailio. Familiarity with cloud environments (AWS, GCP, or Azure) and basic networking concepts such as firewalls, NAT, and QoS. Knowledge of programming languages such as Python, Java, or JavaScript for application development and automation. Experience with SQL and NoSQL databases for managing voice data. Understanding of WebRTC and web-based communication protocols is a plus. Problem Solving: Strong troubleshooting and problem-solving skills with the ability to diagnose and resolve VOIP-related issues quickly. Communication Skills: Excellent written and verbal communication skills, with the ability to explain complex technical concepts to both technical and non-technical audiences. Team Collaboration: Proven ability to work well within a cross-functional team environment and collaborate effectively with engineers, product teams, and other stakeholders. Analytical Mindset: Strong analytical skills and attention to detail, with the ability to assess complex technical challenges and provide practical solutions. Customer Focused: Ability to understand customer requirements and translate them into reliable, high-quality VOIP applications. Preferred Qualifications Experience with cloud-native technologies, including containers, Kubernetes, and CI/CD pipelines. Exposure to BroadSoft or BroadWorks platforms. Familiarity with SIP trunks, media gateways, and IVR systems. Knowledge of networking protocols (TCP/IP, DNS, HTTP/S) and voice quality metrics (MOS, jitter, latency). Total Rewards Our Total Rewards offerings are designed to allow our employees to take care of themselves and their families so they can be their best, in and out of the office. Our compensation packages are tailored to each role and candidate's qualifications. We consider a wide range of factors, including skills, experience, training, and certifications, when determining compensation. We aim to offer competitive salaries or wages that reflect the value you bring to our team. Depending on the position, compensation may include base salary and/or hourly wages, incentives, or bonuses. Medical 🩺 - Medical insurance coverage is available for employees, their spouse, and up to two dependent children with a limit of 500,000 INR, as well as their parents or in-laws for up to 300,000 INR. This comprehensive coverage ensures that essential healthcare needs are met for the entire family unit, providing peace of mind and security in times of medical necessity. Group Term & Group Personal Accident Insurance 💼 - Provides insurance coverage against the risk of death / injury during the policy period sustained due to an accident caused by violent, visible & external means. Coverage Type - Employee Only Sum Insured - 3 times of annual CTC with minimum cap of INR 10,00,000 Free Cover Limit - 1.5 Crore Work-Life Balance ⚖️ - 15 days of Privilege leaves per calendar year, 6 days of Paid Sick leave per calendar year, 6 days of Casual leave per calendar year. Paid 26 weeks of Maternity leaves, 1 week of Paternity leave, a day off on your Birthday, and paid holidays Financial Security💰 - Provident Fund & Gratuity Wellness 🤸‍ - Employee Assistance Program and comprehensive wellness initiatives Growth 🌱 - Access to ongoing learning and development opportunities and career advancement At Nextiva, we're committed to supporting our employees' health, well-being, and professional growth. Join us and build a rewarding career! Established in 2008 and headquartered in Scottsdale, Arizona, Nextiva secured $200M from Goldman Sachs in late 2021, valuing the company at $2.7B.To check out what’s going on at Nextiva, check us out on Instagram, Instagram (MX), YouTube, LinkedIn, and the Nextiva blog. Show more Show less

Redefine the future of customer experiences. One conversation at a time. We’re changing the game with a first-of-its-kind, conversation-centric platform that unifies team collaboration and customer experience in one place. Powered by AI, built by amazing humans. Our culture is forward-thinking, customer-obsessed and built on an unwavering belief that connection fuels business and life; connections to our customers with our signature Amazing Service®, our products and services, and most importantly, each other. Since 2008, 100,000+ companies and 1M+ users rely on Nextiva for customer and team communication. If you’re ready to collaborate and create with amazing people, let your personality shine and be on the frontlines of helping businesses deliver amazing experiences, you’re in the right place. Build Amazing - Deliver Amazing - Live Amazing - Be Amazing Nextiva is currently seeking a bright and talented individual for a Platform Engineer position to join our expanding voice platform engineering team. The position is responsible for developing IaC and configuration tooling for deployment and integration of voice related platforms. This role requires a high degree of experience in platform engineering in the cloud, and with a background in software development and operational awareness. The candidate must be able to design new, interpret existing cloud configurations and augment to meet the product development ecosystem. This role will require previous development experience, ability to trace errors, dig into code up the stack, understand coding logic, and provide RCA or solutions to issues. In addition, the candidate will use software development background support voice platform teams around tooling and automaton, both the development of and support of, along with reviewing stack code that voice platforms connect into. The candidate must be self-driven, highly motivated, have a sharp eye and attention for detail, responds quickly when needed, a has sound decision making skills. Key Responsibilities Develop tooling to support automation of IaC, configuration and build processes for Nextiva’s cloud communications initiatives and telephony applications Code review, troubleshooting, and testing of automation and related tooling applications Decomposing existing cloud architectures and configurations and presenting key data Creating and supporting custom tooling & observability for platform operations teams Creating and supporting scripting for testing/QA automation suites and runtime frameworks Implementing observability tools, reporting capabilities including integration into data lakes and presentation UI’s Troubleshooting all aspects of the design, install and maintenance tools and the systems they are deployed too Support for Incident resolution Build, maintain, and promote strong technical documentation Normal business hours and after hours/on call responsibilities Technical liaison to product development, engineering, support, and executive level staff Qualifications At least 6+ years of platform engineering experience, with 3+ years’ experience in systems engineering A software development and operational background with experience in real-time communications voice infrastructure including mobility; preferred knowledge of FreeSWITCH, Kamailio and Coturn Strong understanding scripting languages like Terraform, Ansible, JavaScript and Python; preferred experience with GitHub Actions Strong understanding of public cloud space infrastructure (GCP preferred), security compliance, IaC, build and deployment methodologies Strong understanding of CI/CD and distributed architectures, ability to read and troubleshoot Java code base Strong systems reliability engineering including capacity planning, performance, scalability and life cycle management Solid knowledge of WebRTC and VoIP related to protocols and architecture Solid SRE best practices, including reliability, monitoring, availability, and incident response Solid understanding of traditional infrastructure tenants; Networking, Firewalls, and OS base Demonstrate sound judgment in problem solving, identification, troubleshooting and solutions Strong analytical and organizational skills, with attention to detail Demonstrate strong verbal and written communication skills Ability to multi-task, prioritizing multiple objectives and initiatives Able to work in a team environment and with a diverse group Mentoring and cross training to platform engineering and operations Competencies Organization, Time Management & Prioritization - Focuses on key priorities; plans, organizes, schedules and executes on tasks and projects in an efficient and productive manner Solutions-oriented - Leverages tools and resources around them; scopes out what is needed for each assignment or work activity, while identifying and making appropriate use of people and other organizational resources/tools that can be leveraged Communication Skills - Expresses themselves using clear, effective and efficient language. Listens patiently and attentively. Adapts to the purpose of the communication with appropriate style, substance, detail, confidence and channel. Possess the ability to manage multiple channels of communication simultaneously; phone, email, tickets, and chat Product & Position Knowledge - Displays specialized and/or in-depth skills, knowledge or judgement and can confidently bring to bear domain knowledge and experience Documentation - Clearly organizes and presents documentation to communicate engineering principles, procedures, processes, and visuals using software tools; web-based collaboration diagrams, text editors, presentation, and configuration repositories Core Technology and Industry Knowledge - Ability to analyze and document core architecture against systems engineering best practices, with advanced problem isolation and analysis on system platforms Typical Office Environment: Requires extensive sitting with periodic standing and walking. May be required to lift up to 35 pounds unassisted. May be required to lift over 35 pounds using assistive device and/or team lift. Requires significant use of personal computer, phone and general office equipment. Needs adequate visual acuity, ability to grasp and handle objects. Needs ability to communicate effectively through reading, writing, and speaking in person or on telephone. Total Rewards Our Total Rewards offerings are designed to allow our employees to take care of themselves and their families so they can be their best, in and out of the office. Our compensation packages are tailored to each role and candidate's qualifications. We consider a wide range of factors, including skills, experience, training, and certifications, when determining compensation. We aim to offer competitive salaries or wages that reflect the value you bring to our team. Depending on the position, compensation may include base salary and/or hourly wages, incentives, or bonuses. Medical 🩺 – Medical insurance coverage is available for employees, their spouse, and up to two dependent children with a limit of 500,000 INR, as well as their parents or in-laws for up to 300,000 INR. This comprehensive coverage ensures that essential healthcare needs are met for the entire family unit, providing peace of mind and security in times of medical necessity. Group Term & Group Personal Accident Insurance 💼 - Provides insurance coverage against the risk of death / injury during the policy period sustained due to an accident caused by violent, visible & external means. Coverage Type - Employee Only Sum Insured - 3 times of annual CTC with minimum cap of INR 10,00,000 Free Cover Limit - 1.5 Crore Work-Life Balance ⚖️ - 15 days of Privilege leaves per calendar year, 6 days of Paid Sick leave per calendar year, 6 days of Casual leave per calendar year. Paid 26 weeks of Maternity leaves, 1 week of Paternity leave, a day off on your Birthday, and paid holidays Financial Security💰 - Provident Fund & Gratuity Wellness 🤸‍ - Employee Assistance Program and comprehensive wellness initiatives Growth 🌱 - Access to ongoing learning and development opportunities and career advancement At Nextiva, we're committed to supporting our employees' health, well-being, and professional growth. Join us and build a rewarding career! Established in 2008 and headquartered in Scottsdale, Arizona, Nextiva secured $200M from Goldman Sachs in late 2021, valuing the company at $2.7B.To check out what’s going on at Nextiva, check us out on Instagram, Instagram (MX), YouTube, LinkedIn, and the Nextiva blog. Show more Show less

Redefine the future of customer experiences. One conversation at a time. We’re changing the game with a first-of-its-kind, conversation-centric platform that unifies team collaboration and customer experience in one place. Powered by AI, built by amazing humans. Our culture is forward-thinking, customer-obsessed and built on an unwavering belief that connection fuels business and life; connections to our customers with our signature Amazing Service®, our products and services, and most importantly, each other. Since 2008, 100,000+ companies and 1M+ users rely on Nextiva for customer and team communication. If you’re ready to collaborate and create with amazing people, let your personality shine and be on the frontlines of helping businesses deliver amazing experiences, you’re in the right place. Build Amazing - Deliver Amazing - Live Amazing - Be Amazing Nextiva is currently seeking a bright and talented individual for a Platform Engineer position to join our expanding voice platform engineering team. The position is responsible for developing IaC and configuration tooling for deployment and integration of voice related platforms. This role requires a high degree of experience in platform engineering in the cloud, and with a background in software development and operational awareness. The candidate must be able to design new, interpret existing cloud configurations and augment to meet the product development ecosystem. This role will require previous development experience, ability to trace errors, dig into code up the stack, understand coding logic, and provide RCA or solutions to issues. In addition, the candidate will use software development background support voice platform teams around tooling and automaton, both the development of and support of, along with reviewing stack code that voice platforms connect into. The candidate must be self-driven, highly motivated, have a sharp eye and attention for detail, responds quickly when needed, a has sound decision making skills. Key Responsibilities Develop tooling to support automation of IaC, configuration and build processes for Nextiva’s cloud communications initiatives and telephony applications Code review, troubleshooting, and testing of automation and related tooling applications Decomposing existing cloud architectures and configurations and presenting key data Creating and supporting custom tooling & observability for platform operations teams Creating and supporting scripting for testing/QA automation suites and runtime frameworks Implementing observability tools, reporting capabilities including integration into data lakes and presentation UI’s Troubleshooting all aspects of the design, install and maintenance tools and the systems they are deployed too Support for Incident resolution Build, maintain, and promote strong technical documentation Normal business hours and after hours/on call responsibilities Technical liaison to product development, engineering, support, and executive level staff Qualifications At least 6+ years of platform engineering experience, with 3+ years’ experience in systems engineering A software development and operational background with experience in real-time communications voice infrastructure including mobility; preferred knowledge of FreeSWITCH, Kamailio and Coturn Strong understanding scripting languages like Terraform, Ansible, JavaScript and Python; preferred experience with GitHub Actions Strong understanding of public cloud space infrastructure (GCP preferred), security compliance, IaC, build and deployment methodologies Strong understanding of CI/CD and distributed architectures, ability to read and troubleshoot Java code base Strong systems reliability engineering including capacity planning, performance, scalability and life cycle management Solid knowledge of WebRTC and VoIP related to protocols and architecture Solid SRE best practices, including reliability, monitoring, availability, and incident response Solid understanding of traditional infrastructure tenants; Networking, Firewalls, and OS base Demonstrate sound judgment in problem solving, identification, troubleshooting and solutions Strong analytical and organizational skills, with attention to detail Demonstrate strong verbal and written communication skills Ability to multi-task, prioritizing multiple objectives and initiatives Able to work in a team environment and with a diverse group Mentoring and cross training to platform engineering and operations Competencies Organization, Time Management & Prioritization - Focuses on key priorities; plans, organizes, schedules and executes on tasks and projects in an efficient and productive manner Solutions-oriented - Leverages tools and resources around them; scopes out what is needed for each assignment or work activity, while identifying and making appropriate use of people and other organizational resources/tools that can be leveraged Communication Skills - Expresses themselves using clear, effective and efficient language. Listens patiently and attentively. Adapts to the purpose of the communication with appropriate style, substance, detail, confidence and channel. Possess the ability to manage multiple channels of communication simultaneously; phone, email, tickets, and chat Product & Position Knowledge - Displays specialized and/or in-depth skills, knowledge or judgement and can confidently bring to bear domain knowledge and experience Documentation - Clearly organizes and presents documentation to communicate engineering principles, procedures, processes, and visuals using software tools; web-based collaboration diagrams, text editors, presentation, and configuration repositories Core Technology and Industry Knowledge - Ability to analyze and document core architecture against systems engineering best practices, with advanced problem isolation and analysis on system platforms Typical Office Environment: Requires extensive sitting with periodic standing and walking. May be required to lift up to 35 pounds unassisted. May be required to lift over 35 pounds using assistive device and/or team lift. Requires significant use of personal computer, phone and general office equipment. Needs adequate visual acuity, ability to grasp and handle objects. Needs ability to communicate effectively through reading, writing, and speaking in person or on telephone. Total Rewards Our Total Rewards offerings are designed to allow our employees to take care of themselves and their families so they can be their best, in and out of the office. Our compensation packages are tailored to each role and candidate's qualifications. We consider a wide range of factors, including skills, experience, training, and certifications, when determining compensation. We aim to offer competitive salaries or wages that reflect the value you bring to our team. Depending on the position, compensation may include base salary and/or hourly wages, incentives, or bonuses. Medical 🩺 – Medical insurance coverage is available for employees, their spouse, and up to two dependent children with a limit of 500,000 INR, as well as their parents or in-laws for up to 300,000 INR. This comprehensive coverage ensures that essential healthcare needs are met for the entire family unit, providing peace of mind and security in times of medical necessity. Group Term & Group Personal Accident Insurance 💼 - Provides insurance coverage against the risk of death / injury during the policy period sustained due to an accident caused by violent, visible & external means. Coverage Type - Employee Only Sum Insured - 3 times of annual CTC with minimum cap of INR 10,00,000 Free Cover Limit - 1.5 Crore Work-Life Balance ⚖️ - 15 days of Privilege leaves per calendar year, 6 days of Paid Sick leave per calendar year, 6 days of Casual leave per calendar year. Paid 26 weeks of Maternity leaves, 1 week of Paternity leave, a day off on your Birthday, and paid holidays Financial Security💰 - Provident Fund & Gratuity Wellness 🤸‍ - Employee Assistance Program and comprehensive wellness initiatives Growth 🌱 - Access to ongoing learning and development opportunities and career advancement At Nextiva, we're committed to supporting our employees' health, well-being, and professional growth. Join us and build a rewarding career! Established in 2008 and headquartered in Scottsdale, Arizona, Nextiva secured $200M from Goldman Sachs in late 2021, valuing the company at $2.7B.To check out what’s going on at Nextiva, check us out on Instagram, Instagram (MX), YouTube, LinkedIn, and the Nextiva blog. Show more Show less

Job Title: NOC Engineer 📍 Location: New Town, Kolkata 🕒 Experience Required: 3–5 Years 🏢 Department: Network Operations Center (NOC) 📄 Job Type: Full-Time | Telecom Services Job Summary: We are looking for a skilled and proactive NOC Engineer to join our Network Operations Center team. The ideal candidate will have hands-on experience with Asterisk, VoIP, Linux systems, and networking , along with a strong understanding of SIP and telephony protocols. This role requires a problem-solver with a collaborative mindset and a passion for optimizing system performance. Mandatory Skills: Minimum 3 years of hands-on experience with Asterisk , VoIP , and networking . Proficient in Linux distributions such as Ubuntu, CentOS, or Debian. Strong understanding of TCP/IP , SIP , NAT , PAT , and firewall configurations . Experience with package management tools (e.g., yum, apt). Proficiency in scripting languages : Bash, Perl, PHP, Python. Experience working with MySQL and MongoDB databases. Familiarity with Asterisk AGI, AMI, ARI , and IPPBX/EPABX systems. Strong troubleshooting skills in voice and network communication protocols . Preferred Skills (Good to Have): Over 5 years of experience in a relevant telecom/VoIP domain. Hands-on experience with VoIP gateways/SBCs like OpenSIPS and Kamailio . Familiarity with telephony monitoring, alerting , and logging tools . Understanding of call routing, rating , and billing systems . Knowledge of open-source telecom technologies and AI/ML applications. Experience developing and deploying custom PBX solutions . Key Responsibilities: Understand and maintain the architecture and integration of telephony services. Operate and expand SIP proxies (e.g., Kamailio/OpenSIPS). Design and implement feature enhancements in telephony platforms. Provide Level 3 technical support , including advanced troubleshooting and triage. Monitor telephony traffic for performance issues and anomalies. Respond promptly to system alerts to maintain high availability and reliability. Build and maintain QA, monitoring, alerting, and logging tools. Collaborate with internal teams on system maintenance and deployments . Integrate with systems for call routing, rating , and billing . Soft Skills: Excellent verbal and written communication skills. Strong interpersonal and collaboration abilities. A positive attitude with a proactive approach to problem-solving. Ability to work independently and within cross-functional teams. Show more Show less

QA Automation & VoIP Engineer Location Experience : 3+ Years Joining : Immediate joiners or max 1-week notice preferred Job Summary: We are hiring a QA Automation Engineer with experience in VoIP systems and automation testing . This role involves testing backend systems, APIs, and VoIP protocols using tools and frameworks. The ideal candidate should be comfortable with both testing and development tasks and have hands-on experience with cloud telephony , VoIP components , and backend APIs . Key Responsibilities: Design and execute automation tests for VoIP and backend systems. Validate SIP, RTP , and HTTP-based communications . Work on VoIP tools like SBC, Kamailio, RTP Engine, FreeSWITCH, or Asterisk. Perform testing of REST APIs and microservices . Analyze SIP logs and troubleshoot VoIP call flow issues. Write automation scripts in Python or similar. Work in Unix/Linux environments and use databases like PostgreSQL, MongoDB, or Cassandra . Collaborate with developers and DevOps for end-to-end testing. Requirements: 3+ years in QA/Automation Testing . 2+ years working with VoIP protocols (SIP, RTP, IMS). Experience with HTTP, REST APIs, and microservices . Hands-on with Python automation or other scripting languages. Familiar with Unix/Linux systems . Basic knowledge of cloud telephony components. Good communication and team collaboration skills. Bonus Skills: Experience with Twilio . CI/CD exposure (e.g., Jenkins). Knowledge of call quality metrics. Show more Show less

Sprinklr is a leading enterprise software company for all customer-facing functions. With advanced AI, Sprinklr's unified customer experience management (Unified-CXM) platform helps companies deliver human experiences to every customer, every time, across any modern channel. Headquartered in New York City with employees around the world, Sprinklr works with more than 1,000 of the world’s most valuable enterprises - global brands like Microsoft, P&G, Samsung and more than 50% of the Fortune 100. What Does Success Look Like? We are seeking a Lead VoIP Engineer to design and build high-performance modules within our Voice platform. You’ll work on the core telephony stack involving signaling, media processing, NAT traversal, and RTP relaying. This is a hands-on execution role ideal for engineers who love building, debugging, and optimizing real-time communication systems. Seniority Level: Lead Individual Contributor What You’ll Do: Implement core voice capabilities using FreeSWITCH, Kamailio/OpenSIPs, and RTPEngine. Build and optimize SIP call routing logic, RTP media relays , failover mechanisms, and NAT traversal. Develop and manage configurations for scalability, codec negotiation, SIP trunk registration . Implement and test features like call recording, IVR, voicemail, DTMF detection. Monitor live traffic and participate in 24x7 on-call rotation for critical escalations. Collaborate with QA on stress/load testing and with Backend teams on provisioning APIs. Document design decisions, configurations, and troubleshooting runbooks. What Makes You Qualified? 7+ years of experience building and operating VoIP systems or CPaaS platforms . Solid expertise with SIP signaling, RTP, and media relay techniques . Strong hands-on with FreeSWITCH, Kamailio/OpenSIPs, RTPEngine . Hands-on experience with Session Border Controller (SBC), Media Servers and WebRTC . Experience in managing telephony infrastructure for uptime, latency, and call quality optimization. Strong systems programming and debugging skills in C/C++ . Good scripting/debugging skills ( Bash, Python, or Lua for FreeSWITCH modules ). Proficiency with diagnostic tools ( Wireshark, tcpdump etc ). Experience working with geographically distributed infrastructure or HA deployments. Show more Show less

Position Summary : The candidate suitable for this role of Senior Software Engineer will be responsible for leading the development and implementation of complex software solutions. This role involves a high level of technical expertise and the ability to guide and mentor junior team members. The Senior Software Engineer will collaborate with cross-functional teams to define, design, and ship new features while maintaining high standards of software quality. Key Responsibilities : - Design and develop high-volume, low-latency applications for mission-critical systems, delivering high availability and performance. - Contribute to all phases of the development lifecycle, from concept and design to testing. - Write well-designed, testable, and efficient code. - Ensure designs comply with specifications. - Prepare and produce releases of software components. - Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review. Skills : - 4-6 years of experience in software development. - Solid background in GoLang. - Strong data structures and algorithms concepts. - Designing and problem-solving skills, with a strong bias for architecting for performance and scalability. - Sound knowledge of cloud services and Kubernetes. Good to have Skills : - Good Understanding SIP/RTP protocols - Hands-on experience with any of FreeSWITCH/Asterisk/OpenSIPS/Kamailio open source VoIP softwares. Qualifications : - B. Tech/M. Tech/MCA in Computer Science Benefits : - Flexible Working Hours. - Hybrid Working Style. - Personal Accidental Insurance. - Health Insurance to Self, Spouse and two kids. - 5 days working week.

Position Overview: We are looking for a talented VoIP Engineer to join our dynamic team. The ideal candidate will possess solid expertise in VoIP technologies, including Kamailio, FreeSWITCH, SIP, and WebRTC, along with practical experience in networking, AWS cloud services, and Linux system administration. This role is perfect for someone who enjoys problem-solving, collaborative teamwork, and working in a fast-paced technology-driven environment. Key Responsibilities Design, deploy, and maintain VoIP infrastructure using Kamailio, FreeSWITCH and related tools. Configure and troubleshoot SIP and WebRTC protocols. Administer and optimize Linux-based servers for performance and reliability. Monitor network performance, manage network infrastructure, and troubleshoot networking issues. Deploy and manage infrastructure on AWS, leveraging relevant cloud technologies. Document infrastructure setup, configuration, and procedures. Collaborate closely with other teams (Backend, QA, Operations) to support the overall infrastructure strategy. Participate in on-call rotations and respond effectively to infrastructure incidents. Qualifications & Requirements Minimum 2+ years of experience with VoIP applications. Hands-on experience with Kamailio and FreeSWITCH. Solid understanding of SIP, RTP, WebRTC and Websockets. Proven Linux system administration experience (Ubuntu/Debian preferred) Familiarity with networking concepts (TCP/IP, TLS, VPN, IP Addressing, NAT Traversal) Practical experience with AWS services such as EC2, S3, VPC, and RDS. Understanding of Docker and scalable deployment strategies. Desired Soft Skills Strong analytical and problem-solving skills. Excellent communication and interpersonal skills. Self-motivated, proactive, and able to work effectively in a team. Organized with the ability to manage multiple priorities simultaneously. Adaptable, eager to learn new technologies, and committed to continuous improvement. Show more Show less

Job Summary: We are seeking an experienced NOC Manager with strong expertise in VoIP, Asterisk, Linux, and networking to oversee and optimize our telephony and network operations. The ideal candidate will have hands-on experience with Kamailio/OpenSIPS, SIP, TCP/IP, and scripting (Bash, Python, PHP, Perl). Knowledge of AI/ML and open-source technologies will be an added advantage. Key Responsibilities: Technical Operations & Maintenance: Operate, maintain, and expand SIP proxies (Kamailio/OpenSIPS). Manage Asterisk-based systems (AGI, AMI, ARI, IPPBX, EPBAX, custom PBX). Troubleshoot VoIP gateways, SBCs, and telephony routing issues. Ensure high availability, security, and performance of Linux servers (Ubuntu, CentOS, Debian). Handle Level 3 escalations for critical telephony and network issues. Monitoring & Optimization: Design and maintain monitoring and alerting systems for VoIP services. Analyze telephony traffic patterns to detect anomalies and optimize performance. Resolve NAT, PAT, and firewall-related VoIP issues. Automation & Development: Develop scripts in Bash, Python, Perl, PHP for automation. Work with MySQL/MongoDB databases for call routing and billing systems. Implement new telephony functionalities and integrations. Team & Process Management: Lead and mentor NOC engineers in troubleshooting and best practices. Coordinate with cross-functional teams for seamless operations. Maintain documentation and SOPs for network and VoIP services. Required Skills & Qualifications: 3-5 years of hands-on experience in Asterisk, VoIP, and Networking. Strong knowledge of Linux (Ubuntu, CentOS, Debian), Bash, TCP/IP, SIP. Experience with Kamailio/OpenSIPS, VoIP gateways, and SBCs. Proficiency in scripting (Python, Bash, Perl, PHP). Understanding of NAT, PAT, firewalls, and VoIP security. Experience with MySQL/MongoDB and call billing systems. Excellent communication, problem-solving, and teamwork skills. Show more Show less

Sprinklr is a leading enterprise software company for all customer-facing functions. With advanced AI, Sprinklr's unified customer experience management (Unified-CXM) platform helps companies deliver human experiences to every customer, every time, across any modern channel. Headquartered in New York City with employees around the world, Sprinklr works with more than 1,000 of the worlds most valuable enterprises - global brands like Microsoft, P&G, Samsung and more than 50% of the Fortune 100. What Does Success Look Like? We are looking for a Principal VOIP Engineer to lead the architecture and technical direction of our next-gen voice infrastructure. You’ll be responsible for building carrier- grade systems with high availability, low latency, and global scalability- powering mission-critical voice communication in our CCaaS platform. This is a hands-on leadership role where you will influence architecture, establish best practices, and work cross-functionally across Engineering, DevOps, Product, and QA teams. Seniority Level: Principal / Individual Contributor with technical leadership scope. What You’ll Do: Design and implement VOIP (signaling and media) infrastructure using FreeSWITCH, Kamailio/OpenSIPs, and RTPEngine. Architect session border controllers (SBC), NAT traversal, load balancing, and failover strategies. Define standards for call routing and audio quality optimization (codecs, jitter, etc.) Lead initiatives for scalability, observability, security, and resiliency of our voice infrastructure. Troubleshoot live trac and provide technical leadership during major incidents. Collaborate with Backend and API teams to design provisioning, billing, and call analytics APIs. Evaluate and onboard open-source tools or commercial carriers as needed. Coach and mentor junior/lead engineers in VoIP best practices. What Makes You Qualified? 12+ years of hands-on experience in the Telephony / VoIP / CPaaS domain. Strong knowledge of VoIP Protocols (SIP/SDP, RTP/RTCP), Networking fundamentals (UDP/TCP/IP, DNS, MPLS), QoS (latency, jitter, packet loss mitigation). Hands-on experience with Session Border Controller (SBC), Media Servers and WebRTC . Expert-level understanding of SIP, RTP, NAT traversal (ICE/STUN/TURN) , and VoIP security (TLS, SRTP, fraud prevention). Hands-on development experience with FreeSWITCH, Kamailio/OpenSIPs, and RTPEngine. Experience in designing carrier-grade telephony plaforms serving millions of calls. Strong systems programming and debugging skills in C/C++ Strong troubleshooting skills, with experience using network monitoring and debugging tools. Familiarity with distributed systems and cloud-based deployments (AWS, GCP, Azure) Excellent problem-solving, debugging, and performance tuning skills