Senior Platform Engineer, Voice Infrastructure at Conquer

Department: Technology

Compensation

$180,000 – $225,000/yr

Setup: Remote
Location: Fremont, California
Type: Full-time
Level: senior
Posted: Oct 1, 2026

Description

Conquer is hiring a Senior Platform Engineer, Voice Infrastructure to design, build, and scale telephony infrastructure and software services supporting real-time customer communications. The role focuses on FreeSWITCH, OpenSIPS, SIP routing, SIP trunking, call quality, observability, containerized workloads, and production troubleshooting, while partnering with Engineering and Product on the voice platform architecture. Candidates need at least five years of software, platform, or infrastructure engineering experience, including significant production telephony experience, along with strong FreeSWITCH, SIP, RTP, backend, and containerization expertise. The position offers a U.S.-based salary range of $180,000 to $225,000, remote-first flexibility, and benefits for U.S. candidates.

Required Skills

FreeSWITCH
OpenSIPS
SIP routing
Docker
Kubernetes
Go
Python
Observability

Additional Information

Required Previous Experiences: 5+ years of software, platform, or infrastructure engineering experience, including significant hands-on experience with production telephony systems
Deep, hands-on production experience with FreeSWITCH, including dialplans, call logic, ESL, and complex production troubleshooting
Strong hands-on experience with OpenSIPS or comparable SIP proxy technology, including personally building or modifying routing logic
Experience owning real-time communication systems in production environments
Experience with Go, Python, or another backend/systems programming language
Hands-on experience building, deploying, troubleshooting, and operating containerized production workloads using Docker and Kubernetes
Experience designing reliable, scalable systems with a focus on performance, resilience, and uptime
Strong experience with observability, monitoring, and production incident response
Preferred Qualifications: Experience with WebRTC end-to-end, including ICE, STUN, TURN, and DTLS-SRTP
Background with browser-based softphones or CRM-embedded calling experiences
Experience building or operating low-latency, real-time media systems
Experience with streaming audio, speech-to-text, transcription, or real-time inference pipelines
Experience building infrastructure that supports AI-driven voice or agentic experiences
Experience with real-time media observability and monitoring
Experience with VoIPmonitor, Homer, or similar voice observability tooling
Experience with call recording and transcription
Exposure to telephony-related compliance considerations such as TCPA, STIR/SHAKEN, call recording laws, and consent management
Translation Company Name: Conquer