Job Title : VoIP Developer (5+ Years Experience)
We are looking for an experienced VoIP Developer with strong expertise in SIP-based communication systems and IMS architecture.
Key Responsibilities :
- Develop and maintain VoIP applications and SIP-based solutions
- Work with Asterisk / FreeSWITCH / Kamailio / OpenSIPS
- Handle call flows, SIP signaling, Diameter protocol, and system integrations
- Troubleshoot call quality, routing, and network issues
- Build APIs and integrations with PBX, CRM, and external systems
- Optimize system performance, SIP trunks, and routing logic
Required Skills :
5+ years of VoIP development experienceStrong in C programming, SIP, Kamailio, Diameter, RedisGood understanding of IMS architectureExperience with RTP, WebRTC, and real-time communicationLinux administration and networking fundamentalsKnowledge of REST APIs and databases (MySQL / PostgreSQL)Good to Have :
WebRTC developmentDocker / Kubernetes, AWS / GCPTools like Sipp, Wireshark, Homer