96 Kamailio Jobs

Job Description 7+ years of hands-on VoIP engineering experience, with a strong focus on carrier SIP trunking and interoperability. Expert-level knowledge of SIP signaling (INVITE, BYE, REGISTER, re-INVITE, UPDATE, PRACK, REFER, etc.), SDP negotiation, RTP/RTCP, and SIP headers. Proven ability to troubleshoot complex SIP interoperability issues across different carrier platforms and SBCs.Strong experience with Session Border Controllers (SBCs) and SIP proxies (e.g., Ribbon, AudioCodes, Oracle/Acme Packet, OpenSIPS,Kamailio, etc.). Proficiency with diagnostic tools: Wireshark, sngrep, Homer/HEP, SIPp, Empirix, etc. Solid networking knowledge: IP, DNS, subnetting, VLANs, routing protocols. Strong Linux administration skills for VoIP applications and troubleshooting. Excellent written and verbal communication skills. Job Description - Grade Specific Focus on Industrial Operations Engineering. Develops competency in own area of expertise. Shares expertise and provides guidance and support to others. Interprets clients needs. Completes own role independently or with minimum supervision. Identifies problems and relevant issues in straight forward situations and generates solutions. Contributes in teamwork and interacts with customers.

Title : Sr Software Engineer (FreeSwitch) Experience : 2+ years Location : Remote About The Opportunity Netrix Global is looking for a passionate Senior Software Engineer that is resourceful Freeswitch and Lua developer to join our team. If you're someone who enjoys tackling complex telephony challenges and independently exploring innovative solutions, we encourage you to apply! How You Will Make An Impact As a key member of our development team, you will play a vital role in shaping and enhancing our telephony applications. You will: Drive Innovation: Conduct independent research and development to address intricate technical problems within our telephony infrastructure, proposing and implementing cutting-edge solutions. Build and Optimize: Design, develop, and maintain robust and scalable telephony applications leveraging the power of Freeswitch and Lua. Troubleshoot and Resolve: Analyze and resolve complex technical issues within our telephony systems, ensuring seamless and reliable communication. Integrate and Extend: Integrate Freeswitch with other systems and develop custom modules and functionalities to meet specific business needs Contribute to Architecture: Participate in the design and architecture of our telephony solutions, ensuring they are efficient, secure, and future-proof. Collaborate Effectively: Work closely with other developers, system administrators, and stakeholders to deliver high-quality solutions. What You Will Bring To The Table You are a motivated and skilled developer with a strong foundation in telephony and scripting. Ideally, you will bring: Solid Experience: A minimum of 2 years of hands-on development experience with Freeswitch and Lua combined with proficiency in reading/understanding code written in C. Freeswitch Expertise: A deep understanding of Freeswitch architecture, modules, configuration, and core functionalities. Lua Proficiency: Strong scripting skills in Lua, with the ability to develop efficient and well-documented code. Telephony Fundamentals: A good grasp of VoIP protocols (SIP, RTP), codecs, and general telephony concepts. Problem-Solving Prowess: Proven ability to independently research, analyze, and solve complex technical challenges. Linux Familiarity: Comfortable working in a Linux environment. Independent Learner: A proactive attitude towards learning new technologies and staying up-to-date with industry trends. Excellent Communication: Strong written and verbal communication skills. Interested folk please share your updated CV on smahore@netrixllc.com What You Can Expect From Us We offer a competitive compensation package, comprehensive group benefits to meet the needs of you and your family, flexibility, and time off when you need it, and a casual work environment. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status. To learn more about Netrix Global please go to www.netrixglobal.com

As a Junior System Administrator (VoIP) / Telephony Engineer at Telebu, you will be responsible for developing, implementing, and supporting IP Telephony related technologies. This includes working on IP Telephony, IVR platforms, Conferencing solutions, Voice engineering integration, Voice over IP (VoIP), Session Border Controllers (SBC), Session Initiation Protocol (SIP), WebRTC, and Public Switched Telephone Network (PSTN) gateways. **Key Responsibilities:** - Develop and implement telephony networks with various components such as SIP proxies, registrar, media-servers, billing systems, etc. - Deploy SIP VOIP/PRI trunking solutions that are highly scalable, robust, high-availability (HA), and fault-tolerant telecom products/systems. - Handle administration of SIP and Media Servers, conduct Network/Protocol level debugging and testing, work on Contact center solutions, and troubleshoot and resolve complex problems. - Provide IP Telephony and VoIP Subject Matter Expertise for the company, manage Company's managed service providers, and handle 3rd party telecom carriers and providers. **Qualifications Required:** - 3 to 5 years of hands-on industry experience in telecommunications. - Strong conceptual knowledge and experience with telephony protocols like SIP, SDP, RTP, SRTP, WebRTC, and audio/video codecs. - In-depth working experience with Kamailio, Freeswitch, any of the SIP stack (Sofia, reSIProcate, PJSIP, etc.), ICE Framework (STUN/TURN), and Linux. - Proficient in writing production quality code using scripting languages like Python, Go, Erlang, etc. - Experience in using VoIP testing tools like Wireshark, VoIPMonitor, SIPp, SIPCapture, Homer, etc. **Nice to have:** - Working knowledge in any of NoSQL databases like MongoDB, Redis, Cassandra, etc. - Passion for understanding VoIP Protocol standards & related RFCs. - Experience with virtualization/container related technologies such as Xen, VMware vSphere / ESXi, Docker, Kubernetes.,

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 What Does Success Look Like? We are seeking a Lead Product (Software) Engineer-VoIP 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? 3 to 8 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. 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 and virtual fitness. 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.

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.

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 Product (Software) Engineer-VoIP 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? 6 to 8 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.

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're currently seeking a bright and talented individual for a Platform Operations Engineer II position to join our expanding voice platform operations team. This position is responsible for the troubleshooting voice telephony systems in the public cloud, assistance in resolving complex software related issues controlling the telephony application switch and related applications, support of platform migrations, and support to Product, Engineering, and Customer Support/Operational teams. The role is responsible for upholding the reliability vision of the platforms, balancing the needs of the business stakeholders and supporting development and engineering needs. The Platform Operations Engineer will be part of a 7/24/365 Operations team that works closely with engineering teams to ensure ongoing system reliability and operational capacity, ensuring our platforms and services are running optimally. The role will include execution of build and deployment automation, testing new platforms, services, and features of both our product technology stack, and tooling used to manage and operate our platform teams. In addition, the candidate must be experienced with supporting telephony systems and voice domains. 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 Troubleshoot and mitigate voice platform relates issues Support testing efforts of new voice features, platform types, and endpoint Support upgrades and migrations of platforms for life cycle management Management of large-scale distributed systems Support for in-day and after-hours Incident resolution Build, maintain, and promote strong technical documentation 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 2+ years of platform operations experience in cloud based environments; preferred knowledge of FreeSWITCH, Kamailio and Coturn and other telephony application switches Solid understanding scripting languages like Terraform, Ansible, JavaScript and Python Foundational understanding of public cloud space infrastructure (GCP preferred) centered around network and geo-graphical deployments voice architecture Fundamental understanding of CI/CD, distributed architectures and micro-services; ability to read and troubleshoot Java code base is a plus Solid knowledge of WebRTC and VoIP related to protocols and architecture Fundamental understanding of SRE best practices, including reliability, monitoring, availability, and incident response Solid understanding of traditional infrastructure tenants; Networking, Firewalls, and OS base Database experience with enterprise class SQL 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. #LI-RQ1 #LI-Hybrid

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're currently seeking a bright and talented individual for a Platform Operations Engineer II position to join our expanding voice platform operations team. This position is responsible for the troubleshooting voice telephony systems in the public cloud, assistance in resolving complex software related issues controlling the telephony application switch and related applications, support of platform migrations, and support to Product, Engineering, and Customer Support/Operational teams. The role is responsible for upholding the reliability vision of the platforms, balancing the needs of the business stakeholders and supporting development and engineering needs. The Platform Operations Engineer will be part of a 7/24/365 Operations team that works closely with engineering teams to ensure ongoing system reliability and operational capacity, ensuring our platforms and services are running optimally. The role will include execution of build and deployment automation, testing new platforms, services, and features of both our product technology stack, and tooling used to manage and operate our platform teams. In addition, the candidate must be experienced with supporting telephony systems and voice domains. 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 Troubleshoot and mitigate voice platform relates issues Support testing efforts of new voice features, platform types, and endpoint Support upgrades and migrations of platforms for life cycle management Management of large-scale distributed systems Support for in-day and after-hours Incident resolution Build, maintain, and promote strong technical documentation 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 2+ years of platform operations experience in cloud based environments; preferred knowledge of FreeSWITCH, Kamailio and Coturn and other telephony application switches Solid understanding scripting languages like Terraform, Ansible, JavaScript and Python Foundational understanding of public cloud space infrastructure (GCP preferred) centered around network and geo-graphical deployments voice architecture Fundamental understanding of CI/CD, distributed architectures and micro-services; ability to read and troubleshoot Java code base is a plus Solid knowledge of WebRTC and VoIP related to protocols and architecture Fundamental understanding of SRE best practices, including reliability, monitoring, availability, and incident response Solid understanding of traditional infrastructure tenants; Networking, Firewalls, and OS base Database experience with enterprise class SQL 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. #LI-RQ1 #LI-Hybrid

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're currently seeking a bright and talented individual for a Platform Operations Engineer II position to join our expanding voice platform operations team. This position is responsible for the troubleshooting voice telephony systems in the public cloud, assistance in resolving complex software related issues controlling the telephony application switch and related applications, support of platform migrations, and support to Product, Engineering, and Customer Support/Operational teams. The role is responsible for upholding the reliability vision of the platforms, balancing the needs of the business stakeholders and supporting development and engineering needs. The Platform Operations Engineer will be part of a 7/24/365 Operations team that works closely with engineering teams to ensure ongoing system reliability and operational capacity, ensuring our platforms and services are running optimally. The role will include execution of build and deployment automation, testing new platforms, services, and features of both our product technology stack, and tooling used to manage and operate our platform teams. In addition, the candidate must be experienced with supporting telephony systems and voice domains. 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 Troubleshoot and mitigate voice platform relates issues Support testing efforts of new voice features, platform types, and endpoint Support upgrades and migrations of platforms for life cycle management Management of large-scale distributed systems Support for in-day and after-hours Incident resolution Build, maintain, and promote strong technical documentation 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 2+ years of platform operations experience in cloud based environments; preferred knowledge of FreeSWITCH, Kamailio and Coturn and other telephony application switches Solid understanding scripting languages like Terraform, Ansible, JavaScript and Python Foundational understanding of public cloud space infrastructure (GCP preferred) centered around network and geo-graphical deployments voice architecture Fundamental understanding of CI/CD, distributed architectures and micro-services; ability to read and troubleshoot Java code base is a plus Solid knowledge of WebRTC and VoIP related to protocols and architecture Fundamental understanding of SRE best practices, including reliability, monitoring, availability, and incident response Solid understanding of traditional infrastructure tenants; Networking, Firewalls, and OS base Database experience with enterprise class SQL 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.

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're currently seeking a bright and talented individual for a Platform Operations Engineer II position to join our expanding voice platform operations team. This position is responsible for the troubleshooting voice telephony systems in the public cloud, assistance in resolving complex software related issues controlling the telephony application switch and related applications, support of platform migrations, and support to Product, Engineering, and Customer Support/Operational teams. The role is responsible for upholding the reliability vision of the platforms, balancing the needs of the business stakeholders and supporting development and engineering needs. The Platform Operations Engineer will be part of a 7/24/365 Operations team that works closely with engineering teams to ensure ongoing system reliability and operational capacity, ensuring our platforms and services are running optimally. The role will include execution of build and deployment automation, testing new platforms, services, and features of both our product technology stack, and tooling used to manage and operate our platform teams. In addition, the candidate must be experienced with supporting telephony systems and voice domains. 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 Troubleshoot and mitigate voice platform relates issues Support testing efforts of new voice features, platform types, and endpoint Support upgrades and migrations of platforms for life cycle management Management of large-scale distributed systems Support for in-day and after-hours Incident resolution Build, maintain, and promote strong technical documentation 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 2+ years of platform operations experience in cloud based environments; preferred knowledge of FreeSWITCH, Kamailio and Coturn and other telephony application switches Solid understanding scripting languages like Terraform, Ansible, JavaScript and Python Foundational understanding of public cloud space infrastructure (GCP preferred) centered around network and geo-graphical deployments voice architecture Fundamental understanding of CI/CD, distributed architectures and micro-services; ability to read and troubleshoot Java code base is a plus Solid knowledge of WebRTC and VoIP related to protocols and architecture Fundamental understanding of SRE best practices, including reliability, monitoring, availability, and incident response Solid understanding of traditional infrastructure tenants; Networking, Firewalls, and OS base Database experience with enterprise class SQL 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.

As a VoIP Developer, you are expected to have a minimum of 3 years of experience in the field. Your responsibilities will include working with open source VoIP solutions like Asterisk, FreeSWITCH, OpenSIPS, and Kamailio. You should possess a strong understanding of PSTN lines and be proficient in VoIP and SIP technologies. Your role will involve the installation and configuration of various products, so prior experience in this area is essential. Proficiency in tools such as wireshark, tcpdump, sipp, fail2ban, and IPtables is required. You must have excellent analytical and troubleshooting skills to identify and resolve issues effectively. A good grasp of databases, including Mysql and Mongo, is necessary, along with experience in Database Replication and Heartbeat configuration. Familiarity with the TCP/IP protocol stack, LAN/WAN networks, and value-added VoIP features like Voicemail, ACD, IVRS, and CTI is also expected. Knowledge of SIP/SDP protocols, Softphones, Linux/server administration, WebRTC, and Enterprise Communication Servers (PBXs) is crucial for this role. You should be adept at problem troubleshooting and debugging techniques for both hardware and software components. In summary, your expertise in VoIP technologies, database management, network protocols, and server administration will be essential for success in this role.,

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.

Job Description!! We are seeking a talented and experienced Network Engineer to join our dynamic team. The Network Engineer will be responsible for designing, implementing, & maintaining our organization's network infrastructure to ensure optimal performance, reliability, & security. The ideal candidate will have a strong technical background in networking technologies, excellent problem-solving skills, and the ability to work both independently & collaboratively in a fast-paced environment Responsibilities Design, configure, and deploy network infrastructure, including routers, switches, firewalls, & wireless access points Implement network security measures to protect against unauthorized access, viruses, & other security threats Monitor network performance and troubleshoot issues to ensure uptime & reliability Perform network capacity planning & scalability assessments to support business growth & evolving technology needs Collaborate with cross-functional teams to design & implement network solutions that meet business requirements Document network configurations, procedures, & best practices for knowledge sharing & future reference Stay current with industry trends & best practices in networking technologies & security Excellent in C/C++/Erlang/Python programming languages Good understanding of VoIP protocols like SIP, RTP/RTCP Experience in Open source VoIP frameworks like Kamailio, Freeswitch, Asterisk, etc Experience in WebRTC programming Good knowledge of networking fundamentals and TCP/IP protocol Qualifications Bachelor’s degree in Computer Science, Information Technology, or related field 3+ years of experience in network engineering or a related role Strong understanding of networking concepts & protocols, including TCP/IP, VLANs, routing protocols, & VPN technologies Hands-on experience with network equipment from vendors such as Cisco, Juniper, Palo Alto Networks, etc Experience with network monitoring & troubleshooting tools (e.g., Wireshark, SNMP, NetFlow) Excellent analytical and problem-solving skills, with the ability to diagnose & resolve complex network issues Strong communication skills, with the ability to effectively convey technical concepts to both technical & non-technical stakeholders Submit Your Application Social Network and Web Links Provide us with links to see some of your work (Git/ Dribble/ Behance/ Pinterest/ Blog/ Medium) Employer Education

Job Profile We are looking for an experienced Dialer Engineer with 3-5 Years of experience in VoIP & Dialer System, who specializes in building, customizing, and optimizing dialer platforms for large-scale contact center solutions. The Ideal Candidate Should Have Strong Expertise In Vicidial, Asterisk, FreeSWITCH, OpenSIPS, And Kamailio, Along With Hands-on Experience In Integrating CPaaS And Telephony Work Week Looks Like Install, configure, and customize Vicidial / GoAutoDial / other dialer systems. Manage and optimize Asterisk / FreeSWITCH / OpenSIPS / Kamailio for call routing and SIP services. Implement and fine-tune Predictive Dialer, Auto Dialer, IVR, and Call Routing. Integrate VoIP APIs (Plivo, Twilio, Telnyx, Exotel, Ozonetel, etc.) into dialer solutions. Handle SIP Trunks, DID Management, Call Queues, Failover & High Availability. Optimize dialer performance for concurrent calls, scalability, and QoS. Troubleshoot and resolve VoIP/Dialer-related issues in production environments. Ensure security, fraud prevention, and SIP firewalling in VoIP ideal candidate should have : Strong expertise in Vicidial / Asterisk / FreeSWITCH. Experience with OpenSIPS / Kamailio (SIP Proxy & Load Balancer). Knowledge of SIP, RTP, WebRTC, IVR, Call Recording, Conferencing. Integration experience with Plivo, Twilio, Telnyx, Exotel, Ozonetel. Experience in VoIP QoS, Load Balancing, and Failover to Have : Experience with Call Center Analytics & Reporting. Familiarity with CRM integrations for dialer systems. Exposure to Call Recording, Compliance (DNC, GDPR), and Security best you can expect from ORI : Passion & happiness in the workplace with great people & open culture with amazing growth opportunities. An ecosystem where leadership is fostered builds an environment where everyone is free to take necessary actions to learn from real experiences. Chance to work on cutting-edge of technology. Freedom to pursue your ideas and innovate with multiple technologies. If you have strong expertise in dialer technologies and a passion for building innovative contact center solutions, then you will love this role. (ref:hirist.tech)

As a Senior/Lead Site Reliability Engineer (SRE) at our company, you will play a crucial role in architecting, scaling, and mentoring the reliability efforts of our cloud-based communication platforms. Your primary responsibility will be to design highly available systems, manage VoIP/SMS infrastructure at scale, and ensure mobile communication reliability across various platforms. Your key responsibilities will include architecting, deploying, and managing large-scale Linux-based communication platforms hosted on AWS. You will be leading the operations of Asterisk PBX systems and Kamailio SIP servers, driving automation frameworks (using Python, Bash, Go) for deployments, scaling, and failover, and mentoring junior and mid-level SREs on Linux operations, VoIP troubleshooting, and scripting best practices. In addition, you will be tasked with defining and enforcing Service Level Objectives (SLOs), Service Level Agreements (SLAs), and Error Budgets across VoIP, messaging, and mobile services. You will lead incident management war rooms, conduct Root Cause Analyses (RCAs), disaster recovery, and compliance initiatives. Furthermore, collaboration with Dev, Security, and Product teams to evolve reliability strategy will be a key part of your role. To excel in this position, you should have 10+ years of experience in SRE, DevOps, Development, Production Engineering, or Linux Systems roles. Expertise in Linux performance tuning, server security, and automation is essential. Deep experience with Asterisk, Kamailio, and SIP call flow troubleshooting, a strong understanding of mobile network behavior (latency, jitter, SMS routing), and mastery of Kubernetes, Docker, Terraform, Helm, and related cloud-native tools are required. Advanced scripting skills in Python, Go, or Bash, as well as experience in disaster recovery, multi-region failover, and compliance, are also necessary for this role.,

Key Skills : Strong experience with LiveKit (self-hosting, cloud deployment, scaling) WebRTC, SIP, PBX (Asterisk/FreePBX/Kamailio) integration Audio/Video pipeline optimization (low latency STT/TTS, AI agents) Familiar with Docker, Kubernetes, Redis, PostgreSQL Bonus: Experience with LLMs + RAG + Realtime APIs for AI agents Responsibilities : Build and optimize LiveKit deployments Integrate with telephony (SIP/VoIP) Work with STT/TTS + LLM for voice AI agents Maintain uptime, scaling, and monitoring Engagement : Full-time / Contract / Remote

As a skilled FreeSWITCH Developer with experience in OpenSIPS and/or Kamailio, you will join our core VoIP engineering team. In this hands-on role, you will be responsible for architecting, building, and maintaining robust SIP-based communication systems. If you are excited about solving complex signaling challenges and scaling VoIP infrastructure, this is the right opportunity for you. Your responsibilities will include building and maintaining scalable VoIP services using FreeSWITCH, configuring and managing SIP proxies (OpenSIPS, Kamailio) for routing, load balancing, and NAT traversal. You will also develop and fine-tune dialplans, call flows, and scripts in Lua, Python, or JavaScript. Troubleshooting signaling/media issues using tools like Wireshark, sngrep, and FreeSWITCH logs will be a part of your routine. Additionally, you will integrate VoIP systems with external APIs, databases, CRMs, and billing platforms, ensuring security, uptime, and scalability across the voice infrastructure. Documenting systems and contributing to architectural decisions will also be crucial aspects of your role. To be successful in this role, you should have at least 3 years of experience working with FreeSWITCH in production environments, a strong grasp of the SIP protocol and related RFCs, and practical experience with OpenSIPS and/or Kamailio configuration. Deep troubleshooting skills using tools like Wireshark, sngrep, and HOMER/HEPIC, as well as scripting experience (Lua, Bash, Python, JS) are required. A solid understanding of VoIP architecture, NAT traversal, and RTP handling, along with Linux systems admin experience (Ubuntu, Debian, CentOS), are also essential. Bonus points if you have experience integrating WebRTC, knowledge of rtpproxy, rtpengine, monitoring with Grafana, Prometheus, or HEPIC, working in containerized environments using Docker/Kubernetes, or experience in billing or CRM system integration. In return, you will receive a competitive salary, flexible hours with remote work options, the opportunity to have a direct impact on production systems and architecture, a chance to work with advanced VoIP technologies, and the support of smart teammates who are passionate about what they do. If you are passionate about VoIP and building high-performance SIP systems, we encourage you to apply by sending your resume and a brief cover letter to info@riopath.com.,

MetroGuild is seeking a Network Engineer with VoIP exposure who is excited to work on modern, open-source telephony technologies. You will play a central role in helping us manage and evolve our SIP-based infrastructure using platforms like FreeSWITCH, Kamailio, and related systems with mentoring and guidance provided as needed. This is a hybrid network + telephony + cloud infrastructure role. Prior deep experience in FreeSWITCH or Kamailio is not expected; what we need is strong networking fundamentals, solid Linux experience, familiarity with cloud platforms, and a proactive, learning mindset. You'll be joining a distributed team that builds and supports voice solutions for our customers across the US, EU, and India. Our stack includes Python, ElasticSearch, ReactJS, React Native, Cassandra, AWS, and modern open-source VoIP components. Your responsibilities will include configuring and maintaining SIP-based VoIP infrastructure using FreeSWITCH, Kamailio, and RTP relays, monitoring and troubleshooting SIP signaling, RTP flows, NAT traversal, and WebRTC performance, working closely with React Native and backend developers integrating SIP.js and WebRTC flows, integrating and maintaining SIP trunks (Twilio, VoIP.ms, Airtel, BSNL, etc.), managing internal office LAN/WAN, DHCP/DNS, and network security across teams, administering AWS resources like Route 53 (DNS), S3 (object storage), EC2 instances, ensuring high uptime, secure networking, and proper infrastructure documentation, and extending call routing logic and debugging live systems under production load. Minimum Qualifications: - 1-3 years of experience with FreeSWITCH (Mandatory) - 3-5 years of experience in Networking, DevOps, or Infrastructure Engineering - Strong understanding of networking protocols: TCP/IP, NAT, DNS, SIP, RTP - Hands-on experience managing AWS services, especially Route 53, S3, and EC2 - Prior experience managing or configuring internal corporate networks and routers - Linux system administration and troubleshooting proficiency - Familiar with one scripting/backend language (Python, Java, or Node.js) - Basic exposure to VoIP/SIP concepts and desire to grow into the domain - Good communication and collaboration skills - Bachelor's degree in Computer Science, IT, or a related field. Nice to Have (Optional but Valued): - Exposure to Kamailio / OpenSIPS - Familiarity with WebRTC, SIP.js, and SIP over WebSocket - Experience working with trunk providers (Twilio, Airtel, BSNL, TATA) - Experience with CI/CD, monitoring tools, and Docker-based deployment Work Location: This is an on-site role (Pune) as the telephony infrastructure and internal networking are managed locally. Occasional client site visits may be required based on project needs.,

Looking for an Asterisk Support Engineer (13 yrs exp) in Meerut. Role involves troubleshooting, VoIP/SIP support, customer assistance, and system maintenance. PHP, Node.js & database skills preferred. Health insurance Mobile bill reimbursements

We are seeking an experienced Dialer Engineer with 3-5 years of expertise in VoIP & Dialer System, focusing on constructing, customizing, and enhancing dialer platforms for large-scale contact center solutions. The perfect candidate will possess profound knowledge in Vicidial, Asterisk, FreeSWITCH, OpenSIPS, and Kamailio, coupled with practical experience in integrating CPaaS and Telephony APIs. Your responsibilities will include installing, configuring, and tailoring Vicidial / GoAutoDial / other dialer systems, managing and optimizing Asterisk / FreeSWITCH / OpenSIPS / Kamailio for call routing and SIP services, implementing and refining Predictive Dialer, Auto Dialer, IVR, and Call Routing, integrating VoIP APIs (Plivo, Twilio, Telnyx, Exotel, Ozonetel, etc.) into dialer solutions, managing SIP Trunks, DID Management, Call Queues, Failover & High Availability, optimizing dialer performance for concurrent calls, scalability, and QoS, troubleshooting and resolving VoIP/Dialer-related issues in production environments, and ensuring security, fraud prevention, and SIP firewalling in VoIP infrastructure. The ideal candidate will possess strong proficiency in Vicidial / Asterisk / FreeSWITCH, familiarity with OpenSIPS / Kamailio (SIP Proxy & Load Balancer), knowledge in SIP, RTP, WebRTC, IVR, Call Recording, Conferencing, integration experience with Plivo, Twilio, Telnyx, Exotel, Ozonetel, experience in VoIP QoS, Load Balancing, and Failover mechanisms. Additionally, experience with Call Center Analytics & Reporting, familiarity with CRM integrations for dialer systems, and exposure to Call Recording, Compliance (DNC, GDPR), and Security best practices would be advantageous. At ORI, you can expect a workplace infused with passion and happiness, an open culture with tremendous growth opportunities, fostering leadership, opportunities to work on cutting-edge technology, and the freedom to innovate with multiple technologies. If you possess a strong expertise in dialer technologies and a drive for crafting innovative contact center solutions, this role is perfect for you.,

Key Responsibilities: Design, configure, and maintain OpenSIPS as SIP proxy/registrar/load balancer. Develop and customize FreeSWITCH for call routing, IVR, conferencing, and advanced VoIP features. Implement SIP, RTP, WebRTC integrations with high availability and redundancy. Optimize system performance for low latency and high concurrent call handling . Troubleshoot signaling and media issues using SIP traces, Wireshark, sngrep, Homer, etc. Collaborate with network/security teams for NAT traversal, TLS/SRTP, and firewall policies . Work with developers for API integrations (REST, XML, ESL) and billing systems . Ensure system scalability, failover testing, and load balancing . Required Skills & Qualifications: Strong hands-on experience with OpenSIPS (or Kamailio) scripting, module configuration, clustering. Proven expertise in FreeSWITCH – dialplans, Lua/JavaScript modules, ESL, and media applications. Good understanding of SIP, RTP, STUN/TURN/ICE, ENUM, DNS-SRV . Proficiency in Linux (Debian/Ubuntu/CentOS) server administration. Experience with PostgreSQL/MySQL, Redis, RabbitMQ/Kafka is a plus. Familiarity with Ansible/Docker/Kubernetes for deployment is an added advantage. Excellent debugging and problem-solving skills.

Job Profile:- We are looking for an experienced Dialer Engineer with 3-5 Years of experience in VoIP & Dialer System , who specializes in building, customizing, and optimizing dialer platforms for large-scale contact center solutions. The ideal candidate should have strong expertise in Vicidial, Asterisk, FreeSWITCH, OpenSIPS, and Kamailio , along with hands-on experience in integrating CPaaS and Telephony APIs . Typical work week looks like:- Install, configure, and customize Vicidial / GoAutoDial / other dialer systems Manage and optimize Asterisk / FreeSWITCH / OpenSIPS / Kamailio for call routing and SIP services Implement and fine-tune Predictive Dialer, Auto Dialer, IVR, and Call Routing Integrate VoIP APIs (Plivo, Twilio, Telnyx, Exotel, Ozonetel, etc.) into dialer solutions Handle SIP Trunks, DID Management, Call Queues, Failover & High Availability Optimize dialer performance for concurrent calls, scalability, and QoS Troubleshoot and resolve VoIP/Dialer-related issues in production environments Ensure security, fraud prevention, and SIP firewalling in VoIP infrastructure Our ideal candidate should have:- Strong expertise in Vicidial / Asterisk / FreeSWITCH Experience with OpenSIPS / Kamailio (SIP Proxy & Load Balancer) Knowledge of SIP, RTP, WebRTC, IVR, Call Recording, Conferencing Integration experience with Plivo, Twilio, Telnyx, Exotel, Ozonetel Experience in VoIP QoS, Load Balancing, and Failover mechanisms Good to Have:- Experience with Call Center Analytics & Reporting Familiarity with CRM integrations for dialer systems Exposure to Call Recording, Compliance (DNC, GDPR), and Security best practices What you can expect from ORI:- Passion & happiness in the workplace with great people & open culture with amazing growth opportunities. An ecosystem where leadership is fostered builds an environment where everyone is free to take necessary actions to learn from real experiences. Chance to work on cutting-edge of technology. Freedom to pursue your ideas and innovate with multiple technologies If you have strong expertise in dialer technologies and a passion for building innovative contact center solutions, then you will love this role. Show more Show less

We are seeking a highly experienced Senior Asterisk Developer to lead the development and maintenance of our VoIP and cloud-based telephony infrastructure. This role requires deep expertise in Asterisk PBX, SIP protocols, and hands-on experience with Python development and Cloud platforms. You’ll play a pivotal role in building scalable, secure, and high-performance communication systems that integrate seamlessly with modern cloud services. Responsibilities Design, develop, and maintain Asterisk-based telephony systems, including custom dial plans, IVRs, queues, voicemail, and conferencing. Configure and manage SIP trunks, ISDN trunks, Analog lines Configure and manage Call routing, failover, codec handling, and system monitoring tools. Develop integration scripts and services using Python to connect with Asterisk. Architect and deploy cloud-based telephony solutions, ensuring scalability, reliability, and security. Troubleshoot and resolve VoIP issues related to call quality, latency, jitter, NAT traversal, and firewall configurations. Leverage AGI and AMI interfaces to extend and automate Asterisk functionalities Monitor system performance and availability, and proactively address capacity and performance issues. Collaborate with DevOps, network, and application teams to ensure smooth end-to-end functionality of telephony services. Maintain system documentation and contribute to knowledge sharing within the team. Qualifications Bachelor’s degree in Computer Science, Telecommunications, or a related field (or equivalent experience). 5+ years of hands-on experience with Asterisk PBX in production environments. 2+ years of professional Python development experience, ideally in telephony, automation, or backend systems. 3+ years of experience working with cloud platforms (AWS, GCP, or Azure), including deployment, monitoring, and security of VoIP applications. Strong knowledge of VoIP protocols (SIP, RTP, SRTP, IAX2, DAHDI, WebRTC), codecs, and NAT/firewall handling. Proficiency in Linux administration and scripting (Bash, Python). Experience with AGI/AMI scripting, and familiarity with Asterisk CLI tools and logs. Knowledge of telephony security best practices including encryption, authentication, and fraud mitigation. Experience integrating Asterisk with relational databases (MySQL/ MariaDB/ PostgreSQL) and REST APIs. Familiarity with tools like Wireshark, tcpdump, and SIP debuggers for network-level troubleshooting. Exposure to Kamailio, or OpenSIPS is a plus. Skills: asterisk,telephony,cloud,python,voip,sip,ami,firewall

Company Description Tevatel is the largest provider of cloud-based call center solutions, enabling businesses to deliver outstanding customer engagement. Founded in 2019 and headquartered in Chennai, Tamil Nadu, Tevatel has expanded to serve over 500 clients with offices in India, USA, and Dubai. Tevatel's flagship product, doocti, is a Customer Experience (CX) Platform that facilitates seamless communication for Sales, Support, and Marketing. Renowned enterprises such as The Hindu, INDmoney, and BSNL trust doocti for superior customer engagement. Role Description This is a full-time on-site role for a Kamailio Support Engineer located in Chennai. The Kamailio Support Engineer will be responsible for providing technical support and troubleshooting services to customers using our Kamailio system. Daily tasks include monitoring system performance, diagnosing and resolving technical issues, collaborating with the customer support team, and maintaining high customer service standards. The role involves working closely with the engineering team to implement system updates and improvements. Qualifications Kamailio & VoIP Skills Skilled in Kamailio SIP server deployment and real-time VoIP routing Experienced in Kamailio for scalable SIP routing and VoIP infrastructure Proficient in Kamailio-based SIP proxy and registrar configurations Hands-on expertise with Kamailio for SIP signaling and load balancing Kamailio specialist with focus on SIP, NAT traversal, and VoIP security System Administration & OS Knowledge Proficiency in Linux System Administration and Unix Strong knowledge of operating systems and infrastructure Experience with telecommunication systems and VoIP technologies is a plus Technical & Analytical Skills Strong troubleshooting skills Troubleshooting and technical support skills Excellent problem-solving abilities and attention to detail Communication & Teamwork Excellent written and verbal communication skills Customer support and customer service skills Ability to work independently and as part of a team Ability to work effectively in an on-site team environment Education & Experience Bachelor’s degree in Computer Science, Information Technology, or a related field Experience in a similar role is a plus 2+ Years Experience is mandatory

We are looking for an experienced VoIP Developer who has deep expertise in setting up and scaling VoIP-based contact center solutions using Asterisk or similar technologies. The ideal candidate should have hands-on experience in building inbound and outbound dialer systems from the ground up, with a strong grasp of SIP protocol, cloud infrastructure, and telephony integration best practices. Key Responsibilities: ● Dialer Setup & Architecture Design and implement scalable cloud-based inbound and outbound dialer architecture using Asterisk, Kamailio/OpenSIPS, and related tools. Lead the end-to-end setup of dialer systems including IVR, predictive/auto/manual dialing modes, and queue management. ● SIP & Telephony Deep understanding of SIP protocol, RTP, and VoIP call flows. Configure and troubleshoot SIP trunks, SBCs, media gateways, and NAT traversal issues. Optimize call routing, codec negotiation, DTMF handling, and failover. ● System Engineering Own the cloud deployment of dialer systems (AWS, GCP, or Azure) using containerization (Docker/Kubernetes preferred). Ensure high availability, performance monitoring, logging, and disaster recovery for dialer infrastructure. Collaborate with network and DevOps teams to fine-tune VoIP performance and reliability. ● Compliance & Quality Ensure the dialer adheres to compliance standards like DND, TRAI/DoT (India), TCPA (US), etc. Implement call recording, real-time monitoring, and post-call analytics systems. ● Development & Integration Work closely with backend and frontend developers to expose dialer APIs for CRM/agent dashboards. Integrate with third-party telephony platforms (Tata, Airtel, Twilio, Exotel, etc.) and CRM systems. ● Troubleshooting & RCA Perform in-depth debugging of call failures using PCAP traces, SIP logs, and Asterisk CLI. Provide root cause analysis and implement permanent fixes for recurring issues. Requirements: ● 2+ years of hands-on experience with Asterisk, Kamailio/OpenSIPS, FreeSWITCH, or similar VoIP systems. ● Deep knowledge of SIP protocol, RTP, WebRTC, STUN/TURN, and NAT-related issues. ● Experience designing and deploying large-scale dialer systems on cloud infrastructure. ● Solid experience in Linux system administration and shell scripting. ● Familiarity with SBCs (e.g., Acme Packet, Sansay, Audiocodes) and SIP debuggers (sngrep, Wireshark). ● Exposure to call center metrics, DNC lists, retry logic, concurrency management. ● Experience with REST APIs, MySQL/Postgres, and message queues (RabbitMQ/Kafka) is a plus. ● Bonus: Experience with voice biometrics, conversational IVR, AI-based call scoring. Preferred Qualifications: ● Bachelor’s or Master’s degree in Computer Science, Electronics, or a related field. ● VoIP certifications (dCAP, CCVP, etc.) are a plus. ● Prior experience working in fintech, edtech, or BPO-focused tech environments.Why Join Us? ● Opportunity to own and shape the telephony backbone of a high-growth product. ● Work with a team that values autonomy, innovation, and deep technical ownership. ● Be part of solving real business challenges through scalable communication infrastructure.