Design, build, and operate greenfield SIP trunking infrastructure connecting carrier-grade telephony to our internal voice AI platform.
Architect and implement real-time bidirectional audio streaming pipelines to support our ECS-based voice stack.
Design autoscaling strategies for stateful, connection-based workloads, enabling the platform to scale dynamically based on connection ingress and concurrent call volume.
Implement call routing, inbound/outbound dialing flows, and media transport (RTP/SRTP).
Integrate with Amazon Connect to bridge carrier connectivity into our custom infrastructure.
Collaborate with ML engineers, product managers, and other stakeholders to ensure the telephony layer meets the needs of our voice AI systems.
Ensure outbound dialing infrastructure complies with TCPA regulations and supports STIR/SHAKEN attestation.

Requirements

Minimum 6+ years of experience in software engineering with a strong focus on real-time communication infrastructure, telephony systems, or voice platforms.
Deep hands-on experience with SIP protocol, including trunking, signaling flows, SDP negotiation, and RTP/SRTP media transport.
Experience standing up and managing SIP trunks with cloud or carrier providers (Twilio, Bandwidth, Vonage, Telnyx, or similar).
Experience building real-time bidirectional audio streaming infrastructure. - Proficiency with AWS infrastructure, including ECS (Fargate or EC2-backed), ALB/NLB, Kinesis, Lambda, and CloudWatch.
Experience designing autoscaling strategies for stateful connection-based workloads (session scaling, concurrent call capacity planning).
Experience with outbound dialing infrastructure, including familiarity with TCPA compliance and STIR/SHAKEN attestation.
Strong proficiency in Python. Familiarity with C for working with open source telephony projects (FreeSWITCH, Kamailio, PJSIP, etc.) and Rust is a plus.

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

SIP protocolreal-time communication infrastructureaudio streamingPythonCRustautoscaling strategiescall routingmedia transportTCPA compliance