Salient
Telephony Infrastructure Engineer
$200K–$300K
SF Headquarters · On-site · Full-time · Posted Sep 26, 2026
About the job
Own and scale Salient’s production voice platform, including SIP infrastructure, call servers, reliability, and customer telephony integrations.
What you'll do
- Complete the Asterisk migration and make voice audio, dialing, and call-server deployments reliable and safe.
- Build capacity, observability, security, and recovery systems for high-volume calling.
- Develop customer SIP integrations and self-serve setup tools.
What they ask for
- Production voice-infrastructure experience at meaningful scale, including on-call responsibility.
- Deep knowledge of SIP, SDP, and RTP; ability to debug traces and pcaps.
- Ability to debug EC2/K8s networking and design monitoring and tests to minimize dead air.
- Experience integrating SIP trunks with customer contact centers and carriers, including transfers and header passing.
Nice to have
- Experience with Kamailio, Asterisk, OpenSIPS, FreeSWITCH, or rtpengine.
- Experience with SIP regional failover, latency-aware multi-homing, contact-center infrastructure, AI voice, or regulated industries.
Pay
$200K – $300K USD base salary
Tools
Asterisk, Kamailio, Kubernetes, EC2, SIP, SDP, RTP, WebRTC
AI focus
The platform carries calls for Salient’s AI agents; the role supports their voice infrastructure.
Model-written summary · the original posting is authoritative