About the role
🔹 Key Responsibilities:• Develop and maintain VoIP applications using FreeSWITCH• Design and implement call routing, IVR, and dialplan logic• Integrate FreeSWITCH with backend systems and APIs• Work with SIP, RTP, and WebRTC protocols• Troubleshoot and resolve call quality and performance issues• Optimize system performance for scalability and low latency• Collaborate with cross-functional teams for product enhancements
🔹 Required Skills:• Strong experience with FreeSWITCH architecture and modules• Good understanding of SIP, RTP, WebRTC, and VoIP fundamentals• Experience in Lua / C / JavaScript (any one or more)• Knowledge of Linux environments and networking concepts• Hands-on experience with call flows, IVR, and conferencing systems• Experience with debugging tools like sngrep, Wireshark
🔹 Good to Have:• Experience with CPaaS or telecom platforms• Knowledge of Kamailio / Asterisk• Exposure to cloud infrastructure (AWS/GCP)• Understanding of scalable distributed systems