Senior FreeSWITCH & WebRTC Engineer Contact Center

We are looking for an experienced Senior FreeSWITCH & WebRTC Engineer with 5-8 years of experience in VoIP, SIP, and Contact Center technologies. The ideal candidate will have robust expertise in FreeSWITCH development, WebRTC, C/C++, ESL integrations, and Contact Center solutions, along with hands-on experience in troubleshooting real-time communication platforms.

Key Skills (Priority Order)

- FreeSWITCH
- SIP
- VoIP
- WebRTC
- C++
- Event Socket Library (ESL)
- C Programming
- WebSocket (WSS)
- Call Center Technology
- RTP / SRTP
- TLS
- NAT
- SIP Trunking
- Linux
- Contact Center Integrations

Key Responsibilities
- Design, develop, and support FreeSWITCH-based voice and Contact Center platforms.
- Implement and maintain SIP, VoIP, WebRTC, and ESL-based integrations.
- Configure and troubleshoot dialplans, call routing, IVR, ACD, and call recording solutions.
- Integrate FreeSWITCH with external applications, APIs,



and Contact Center platforms.
- Debug and resolve production issues related to SIP signaling, RTP media flow, NAT traversal, and WebRTC connectivity.
- Perform protocol analysis and troubleshooting using tools such as Wireshark and TCPDump.
- Support deployment, monitoring, and observability using CI/CD pipelines, Grafana, Splunk, and logging platforms.
- Conduct root cause analysis (RCA) and create runbooks, SOPs, and technical documentation.
- Collaborate with cross-functional teams to deliver scalable and reliable communication solutions.
- Ensure code quality through unit, integration, and end-to-end testing.

Location: Bangalore / Hyderabad / Pune Experience: 5-8 Years

Domain: Contact Center Technology / Telecom / VoIP

Employment Type: Full-Time

📌 Senior FreeSWITCH & WebRTC Engineer_Contact Center_XP: 5+ (Bengaluru)
🏢 Tata Consultancy Services
📍 Bengaluru