FreeSWITCH Implementation Engineer - VoIP/Telecom in Gurgaon, भारत

Roles & Responsibilities :We are looking for a FreeSWITCH Implementation Engineer responsible for designing, deploying, configuring, integrating, and maintaining FreeSWITCH-based VoIP platforms. The role involves working extensively with SIP, RTP, WebRTC, IVR, conferencing, call routing, and external integrations in production https://jobeax.com/link/D97KR0fNczjlIZqw Responsibilities :FreeSWITCH Core Responsibilities :- Install, configure, and maintain FreeSWITCH in production environments from scratch.- Design and implement call flows, dialplans, IVRs, conferencing, and call routing with complete ownership.- Configure SIP profiles (internal/external), gateways, trunks, and extensions.- Implement multi-tenant and high-availability FreeSWITCH https://jobeax.com/link/e5ax7w08YVoKuLo2, RTP & Networking :- Strong understanding of SIP signaling, RTP media, and SDP negotiation.- Troubleshoot one-way audio, no-audio, call drops, and registration failures.- Configure NAT traversal, firewall rules, and RTP port ranges.- Analyze SIP logs and traces using siptrace, sngrep, and https://jobeax.com/link/jLywaras2mNAmQ4V & Scripting :- Develop FreeSWITCH dialplans using XML and at least one scripting language such as Lua, JavaScript, or Python.- Implement call queues for inbound and outbound calls, time-based routing, skill-based routing, failover, and fallback https://jobeax.com/link/Goy3bpNUKcpnPBtb & APIs :- Integrate FreeSWITCH with CRM/ERP systems, billing platforms, AI voice bots (ASR/TTS), and external WebSocket or REST services.- Use Event Socket Library (ESL), including inbound and outbound ESL, for real-time call control and https://jobeax.com/link/Z5qXKkLL5pNPHTEi & Media :- Configure WebRTC support including DTLS-SRTP, ICE, and OPUS.- Work with mod_verto and SIP over WSS.- Implement browser-based calling https://jobeax.com/link/OHnY2hfRncDoirCG & Debugging :- Monitor system performance and call quality, analyze logs and CDRs, and optimize codec usage and RTP performance.- Handle live production incidents and conduct root cause analysis (RCA).Deployment & Operations :- Deploy FreeSWITCH on Linux environments including CentOS and Ubuntu.- Deploy and manage FreeSWITCH on cloud platforms such as AWS, GCP, and Azure.- Configure high availability, load balancing, and scaling.- Work with DevOps teams on CI/CD, backups, and https://jobeax.com/link/OeYm9EAtl3cu8Rig Candidate :- Strong FreeSWITCH Implementation Engineer profile.- Minimum 4+ years of overall experience, with at least 3+ years of hands-on experience implementing, configuring, and supporting FreeSWITCH in production environments.- Strong experience designing and implementing FreeSWITCH call flows, including dialplans, IVRs, call routing, conferencing, SIP profiles, gateways, trunks, and extensions, with end-to-end ownership.- Strong hands-on knowledge of VoIP technologies including SIP, RTP, RTCP, SDP, and WebRTC, with the ability to troubleshoot call drops, one-way audio, registration failures, NAT traversal, and SIP/RTP-related issues.- Hands-on experience developing FreeSWITCH dialplans using XML and at least one scripting language such as Lua, JavaScript, or Python, including call queues, time-based routing, skill-based routing, and failover logic.- Experience integrating FreeSWITCH with CRM/ERP systems, REST APIs, WebSockets, AI Voice Bots (ASR/TTS), or Billing Platforms, along with hands-on experience using Event Socket Library (ESL) for real-time call control.- Strong Linux administration experience with the ability to deploy and manage FreeSWITCH on Ubuntu/CentOS, along with debugging expertise using fs_cli, sngrep, and tcpdump, and working knowledge of SQL (MySQL/PostgreSQL) for CDRs and reporting.- Experience with AWS, Azure, or GCP, High Availability (HA), Load Balancing, CI/CD pipelines, automation, backups, and scalable FreeSWITCH deployments.- Experience implementing WebRTC-based calling solutions, including mod_verto, SIP over WSS, DTLS-SRTP, ICE, and OPUS codec configuration. (ref:hirist.tech)