VOIP Developer

About the role

The ideal candidate should have strong expertise in FreeSWITCH, OpenSIPS, Asterisk, Kamailio, and FusionPBX , along with a solid understanding of SIP-based communication systems and VoIP technologies. You will work closely with Product, QA, DevOps, and Support teams to build scalable, secure, and high-performance telecom applications for global customers.

What you'll do

• Design, develop, and maintain VoIP and telecom applications
• Configure, customize, and optimize FreeSWITCH, Asterisk, OpenSIPS, Kamailio, and FusionPBX
• Develop SIP-based call routing, IVR, conferencing, recording, and telephony solutions
• Integrate VoIP platforms with CRM systems, REST APIs, and third-party applications
• Troubleshoot SIP, RTP, codec, NAT, and signalling issues

What you need

• 5–9 yrs of experience
• REST APIs
• Linux
• SQL
• Python
• Java
• C++
• B.Tech or B.E. or B.Sc or BCA

Good to have

• Docker
• Kubernetes
• PostgreSQL
• Telecom
• PHP
• TCP/IP

What you get

• ₹5 L–₹16 L a year