137 Kamailio Jobs

About The Role 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 toolsWireshark, sngrep, Homer/HEP, SIPp, Empirix, etc. Solid networking knowledgeIP, DNS, subnetting, VLANs, routing protocols. Strong L...

As a skilled FreeSWITCH Developer with deep experience in OpenSIPS and/or Kamailio, you will be joining the core VoIP engineering team at our company. Your role will involve architecting, building, and maintaining robust SIP-based communication systems. If you are excited about solving complex signaling challenges and scaling VoIP infrastructure, this opportunity is perfect for you. **Key Responsibilities:** - 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 i...

About The Role Project Role : Application Support Engineer Project Role Description : Act as software detectives, provide a dynamic service identifying and solving issues within multiple components of critical business systems. Must have skills : Cloud Contact Center Operations Good to have skills : NA Minimum 3 year(s) of experience is required Educational Qualification : 15 years full time education Summary :We are seeking an experienced Voice Engineer with 3 to 5 years of experience in Asterisk, Kamailio, SIP, WebRTC, and VoiceXML, along with strong scripting skills in Java. The ideal candidate will be responsible for designing, deploying, and maintaining real-time communication systems, ...

Job Purpose VoIP Engineer (Asterisk, Kamailio) - 5-7 Years Experience Duties and Responsibilities A-Minimum required Accountabilities for this role VoIP Infrastructure Design & Maintenance: oConfigure, deploy, and maintain FreeSWITCH and Kamailio-based systems. oUnderstanding of VoIP architectures to support business needs. oImplement call routing, DID management, and trunk configurations. SIP & Call Routing: oDevelop and manage SIP-based call routing for internal and external communication. oTroubleshoot SIP signaling issues using tools like Wireshark or sngrep. oOptimize routing rules for least-cost routing (LCR) and high availability. Monitoring & Performance Optimization: oMonitor VoIP s...

Plivo is a leading technology company transforming customer engagement for some of the world's largest B2C brands, including Uber, WhatsApp, and Zomato. Our new product - the AI agents platform, automates the entire customer lifecycle - from acquiring, engaging, and supporting customers - through cutting-edge multimodal AI, including LLMs, text-to-speech, and speech detection. With a 100+ member team based out of India & US. We are building high-impact global products that handle over 1 billion API requests per month. If you are excited about solving hard, real-world AI challenges at scale, this is where you belong Role overvi ew This is a deep systems and multidisciplinary role that bridges...

Project Role : Application Support Engineer Project Role Description : Act as software detectives, provide a dynamic service identifying and solving issues within multiple components of critical business systems. Must have skills : Cloud Contact Center Operations Good to have skills : NA Minimum 3 year(s) of experience is required Educational Qualification : 15 years full time education Summary: We are seeking an experienced Voice Engineer with 3 to 5 years of experience in Asterisk, Kamailio, SIP, WebRTC, and VoiceXML, along with strong scripting skills in Java. The ideal candidate will be responsible for designing, deploying, and maintaining real-time communication systems, IVR application...

Project Role : Application Support Engineer Project Role Description : Act as software detectives, provide a dynamic service identifying and solving issues within multiple components of critical business systems. Must have skills : Cloud Contact Center Operations Good to have skills : NA Minimum 5 year(s) of experience is required Educational Qualification : 15 years full time education Summary: We are seeking an experienced Voice Engineer with 5 to 8 years of experience in Asterisk, Kamailio, SIP, WebRTC, and VoiceXML, along with strong scripting skills in Java. The ideal candidate will be responsible for designing, deploying, and maintaining real-time communication systems, IVR application...

Project Role : Application Support Engineer Project Role Description : Act as software detectives, provide a dynamic service identifying and solving issues within multiple components of critical business systems. Must have skills : Cloud Contact Center Operations Good to have skills : NA Minimum 3 year(s) of experience is required Educational Qualification : 15 years full time education Summary: We are seeking an experienced Voice Engineer with 3 to 5 years of experience in Asterisk, Kamailio, SIP, WebRTC, and VoiceXML, along with strong scripting skills in Java. The ideal candidate will be responsible for designing, deploying, and maintaining real-time communication systems, IVR application...

Project Role : Application Support Engineer Project Role Description : Act as software detectives, provide a dynamic service identifying and solving issues within multiple components of critical business systems. Must have skills : Cloud Contact Center Operations Good to have skills : NA Minimum 5 Year(s) Of Experience Is Required Educational Qualification : 15 years full time education Summary: We are seeking an experienced Voice Engineer with 5 to 8 years of experience in Asterisk, Kamailio, SIP, WebRTC, and VoiceXML, along with strong scripting skills in Java. The ideal candidate will be responsible for designing, deploying, and maintaining real-time communication systems, IVR application...

Project Role : Application Support Engineer Project Role Description : Act as software detectives, provide a dynamic service identifying and solving issues within multiple components of critical business systems. Must have skills : Cloud Contact Center Operations Good to have skills : NA Minimum 3 Year(s) Of Experience Is Required Educational Qualification : 15 years full time education Summary: We are seeking an experienced Voice Engineer with 3 to 5 years of experience in Asterisk, Kamailio, SIP, WebRTC, and VoiceXML, along with strong scripting skills in Java. The ideal candidate will be responsible for designing, deploying, and maintaining real-time communication systems, IVR application...

Job Overview Looking for a highly skilled solution/software architect to lead our development team in creating robust, secure, and scalable software solutions that meet project needs. You will be responsible for communicating with clients to determine their requirements, creating comprehensive solution plans, and leading a team of software engineers as they develop polished final products. To be successful as a solution/software architect, you should be an expert problem solver with a strong understanding of the broad range of software technologies and platforms available. Key Responsibilities Design, develop and execute software solutions to address business issues Provide architectural blu...

As a Voice Engineer at Voxvalley Technologies, your role will involve designing, developing, and maintaining VoIP-based voice applications and services with a focus on reliability and performance. You will be responsible for developing high-performance components in C/C++ on Linux for low-latency voice processing, troubleshooting SIP, RTP/RTCP, and voice codec flows, and integrating and optimizing back-end components such as MySQL and Redis. Additionally, you will collaborate closely with cross-functional teams to ensure stable releases and operational readiness. **Key Responsibilities:** - Design, develop, and maintain VoIP-based voice applications and services with a focus on reliability a...

About the role We are looking for a highly skilled Telephony L3 Engineer with deep expertise in SIP routing, VoIP configurations, and telephony infrastructure. The ideal candidate must have hands-on experience with SBCs (Session Border Controllers), OpenSIPS, and Kamailio - along with designing, implementing, and troubleshooting SIP-based communication systems, PBX configurations, and VoIP networks. Requirements / Expectations Looking for a Telephony/Voice Engineer (L3 Level) to take ownership of BAU (Business as Usual) and operationally help the team manage the contact center. Possess Bachelor's degree in IT, Computer Science, Business Administration, or a related field. Hands-on experience...

Experience : 2 to 10 years Notice Period : Immediate to 60 Days Location : Bangalore Role : VoIP Solution – CPRS Domain Summary: Telecommunications specialist with 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. Proven ability to design and implement scalable, high-performance communication systems tailored to business needs, particularly within the Consumer Products and Retail Services (CPRS) domain. Key Skills & Experience: 2+ years of IT delivery and solutioning experience, with a focus on VoIP and unified communications. Expertise in presales solution...

Long Description Job Role : VOIP/ Telephony Experience : 4 to 12 Years Location : Pan India Notice Period : 0 to 45 Days Job Description Great hands-on experience over SBC integrations, SBC configurations, SIP server integrations, SIP configurations, SBC-SIP-Genesys Integrations SBC- Session Border Controller SIP – Session Initiation Protocol. Genesys cloud product, hands on experience. 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 n...

VoIP & Telecom Developer (Asterisk/Vicibox/SIP) Company: Universal Response Systems (URS) Location: India (Remote) Department: Engineering Software & QA Software Development Employment Type: Full-Time, Permanent Role Summary URS is building a cloud-hosted, open-source telecom stack from scratch to replace third-party dialers. We need a hands-on VoIP & Dialer Engineer who can architect, build, and ship the entire platform end-to-end: Asterisk/Vicibox dialer, SIP edge, multi-carrier routing, SMS/RVM, APIs, observability, and security. You build it; we’ll operate it day-to-day. Strong growth path to Technical Head as we scale. What You’ll Build & Own Core dialer: Stand up Asterisk/Vicibox/Vicid...

Description Netstratum is a global product development company specializing in custom software and enterprise IT services. With teams across ten global locations, we combine local insight with global expertise to deliver innovative, purpose-driven solutions. As a leader in telecom tech, we build secure, high-performance Unified Communication Systems used by Tier-1 providers, enterprises, and governments. Our in-house AI platform is built for scale, security, and real-world impact. Join a vibrant, diverse team working on cutting-edge projects in telecom, AI, IoT, and digital transformationwithin a fast-paced, learning-focused environment. Experience : 3+ Years. Salary : As per Industry Standa...

Job Title: Voice Engineer (Mid-level / Senior) Location: Hyderabad (Work from Office) Seniority Level: Mid-level to Senior (Individual Contributor / Tech Lead) Experience: Minimum 4 years (4-8+ years preferred for Senior level) Department: Product Engineering – Voice / CPaaS Company Overview Voxvalley Technologies is a global telecom software provider empowering operators, MVNOs, aggregators, and enterprises across 20+ countries. With over a decade of innovation in CPaaS, UCaaS, CCaaS, and eSIM solutions, Voxvalley delivers high-performance communication platforms that drive digital transformation. Our flagship products include Tringy (IP-PBX) , CPaaS white-label platforms , and eSIM provisi...

Job Title: Voice Engineer (Mid-level / Senior) Location: Hyderabad (Work from Office) Seniority Level: Mid-level to Senior (Individual Contributor / Tech Lead) Experience: Minimum 4 years (4-8+ years preferred for Senior level) Department: Product Engineering – Voice / CPaaS Company Overview Voxvalley Technologies is a global telecom software provider empowering operators, MVNOs, aggregators, and enterprises across 20+ countries. With over a decade of innovation in CPaaS, UCaaS, CCaaS, and eSIM solutions, Voxvalley delivers high-performance communication platforms that drive digital transformation. Our flagship products include Tringy (IP-PBX) , CPaaS white-label platforms , and eSIM provisi...

Job Title: Voice Engineer (Mid-level / Senior) Location: Hyderabad (Work from Office) Seniority Level: Mid-level to Senior (Individual Contributor / Tech Lead) Experience: Minimum 4 years (4-8+ years preferred for Senior level) Department: Product Engineering – Voice / CPaaS Company Overview Voxvalley Technologies is a global telecom software provider empowering operators, MVNOs, aggregators, and enterprises across 20+ countries. With over a decade of innovation in CPaaS, UCaaS, CCaaS, and eSIM solutions, Voxvalley delivers high-performance communication platforms that drive digital transformation. Our flagship products include Tringy (IP-PBX) , CPaaS white-label platforms , and eSIM provisi...

Location Name: Pune Corporate Office - Mantri Job Purpose VoIP Engineer (Asterisk, Kamailio) - 5-7 Years Experience Duties And Responsibilities A- Minimum required Accountabilities for this role VoIP Infrastructure Design & Maintenance: o Configure, deploy, and maintain FreeSWITCH and Kamailio-based systems. o Understanding of VoIP architectures to support business needs. o Implement call routing, DID management, and trunk configurations. SIP & Call Routing: o Develop and manage SIP-based call routing for internal and external communication. o Troubleshoot SIP signaling issues using tools like Wireshark or sngrep. o Optimize routing rules for least-cost routing (LCR) and high availability. M...

About Credgenics : Credgenics is India’s first of its kind NPA resolution platform backed by credible investors including Accel Partners and Titan Capital. We work with financial institutions, Banks, NBFCs & Digital lending firms to improve the efficiency of their collection using technology, automation intelligence and optimal legal routes to facilitate the resolution of stressed assets. With all major banks and NBFCs as our clients, our SaaS-based collections platform helps them efficiently improve their NPA, geographic reach and customer experience. We count most of India's lending majors as our clients such as ICICI Bank, Axis Bank, Bank of Baroda, etc and have been able to grow 100% MoM...

Experience : 2 to 10 years Notice Period : Immediate to 60 Days Location : Bangalore Role : VoIP Solution – CPRS Domain Summary: Telecommunications specialist with 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. Proven ability to design and implement scalable, high-performance communication systems tailored to business needs, particularly within the Consumer Products and Retail Services (CPRS) domain. Key Skills & Experience: 2+ years of IT delivery and solutioning experience, with a focus on VoIP and unified communications. Expertise in presales solution...

Role Overview: As a highly skilled VoIP Developer with 5-7 years of experience, you will be responsible for the installation, configuration, and maintenance of open-source VoIP solutions like Asterisk, FreeSWITCH, OpenSIPS, and Kamailio. You will also handle tasks such as setting up proxies for push notifications, managing VoIP and SIP protocols, configuring tools for monitoring and debugging, implementing value-added features, managing databases, ensuring network reliability, and troubleshooting hardware and software issues effectively. Key Responsibilities: - Installation, configuration, and maintenance of open-source VoIP solutions (e.g., Asterisk, FreeSWITCH, OpenSIPS, Kamailio). - Setti...

About us Exotel is a leading full-stack customer engagement platform and business-focused virtual telecom operator. Exotel has also recently received a virtual telecom operator license to offer cost-effective end-to-end VoIP telephony services, making the company a 100% compliant cloud calling operator. Exotel was founded in 2011 and has an impressive cloud-based product suite that drives 70 million conversations daily for more than 6000 businesses in India, Southeast Asia, the Middle East, and Africa. Today, Exotel's omnichannel contact centre, communication API suite, and conversational AI platform help some of the fastest-growing businesses in emerging countries manage customer engagement...