Principal VOIP Engineer

Description

• Design and implement VOIP (signaling and media) infrastructure using FreeSWITCH, Kamailio/OpenSIPs, and RTPEngine

• Architect session border controllers (SBC), NAT traversal, load balancing, and failover strategies

• Define standards for call rou8ng and audio quality op8miza8on (codecs, jieer, etc.)

• Lead ini8a8ves for scalability, observability, security, and resiliency of our voice infrastructure

• Troubleshoot live traffic and provide technical leadership during major incidents

• Collaborate with Backend and API teams to design provisioning, billing, and call analy8cs APIs

• Evaluate and onboard open-source tools or commercial carriers as needed

• Coach and mentor junior/lead engineers in VoIP best prac8ces.

What Makes You Qualified

• 12+ years of hands-on experience in the Telephony / VoIP / CPaaS domain

• Strong knowledge of VoIP Protocols (SIP/SDP, RTP/RTCP), Networking funda...