Senior Platform Engineer, Voice Infrastructure

At Conquer, we help go-to-market teams connect more meaningfully, act more effectively, and grow more predictably. As a leader in intelligent revenue engagement, we empower our customers to orchestrate the right message at the right time across every channel.

We believe bold ideas, authentic collaboration, and a growth mindset are essential to conquering your day and your goals. If that excites you, we would love to meet you.

Real-time communication sits at the heart of the Conquer platform. As our Senior Platform Engineer, Voice Infrastructure, you will own and evolve the systems that power how sales teams connect with customers through calling, routing, and intelligent workflows.

Voice at Conquer is more than communications infrastructure. It is foundational to how we understand customer interactions and increasingly how we deliver real-time, intelligent experiences across our platform.

This is not a traditional telecom operations or high-level architecture role. We are looking for an engineer who combines deep telephony expertise with strong software and platform engineering skills. You should be equally comfortable designing how the platform should evolve and getting into the code, Free SWITCH, SIP routing layer, containers, and production infrastructure to build it.

Your work will directly impact call quality and reliability today while helping build the voice foundation for the next generation of Conquer's platform.

• Design, build, and scale Conquer's telephony infrastructure and the software services that support it
• Work directly within Free SWITCH, including call logic, dialplans, ESL integrations, and complex production troubleshooting
• Build and evolve OpenSIPS routing logic and signaling infrastructure
• Own integrations with domestic and international SIP trunking providers
• Write, review, debug, and maintain production backend and platform code
• Work directly in production environments, troubleshooting complex issues across SIP signaling, RTP/media paths, carriers, networking, and application services
• Improve observability across the voice stack, including SIP, RTP, and media paths
• Develop and evolve call routing, dialing workflows, and real-time communication services
• Build, deploy, and operate containerized voice and platform workloads using Docker and Kubernetes
• Partner closely with Engineering and Product leadership to shape the longer-term architecture and technical roadmap for Conquer's voice platform
• Help ensure the voice platform can support emerging real-time intelligence, automation, and AI-driven experiences
• Document systems and create tooling and runbooks that improve team understanding and operational readiness

• 5 years of software, platform, or infrastructure engineering experience, including significant hands-on experience with production telephony systems
• Deep, hands-on production experience with Free SWITCH, 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
• Deep understanding of SIP and RTP and experience diagnosing signaling, media-path, NAT, codec, and call-quality issues using packet captures and SIP traces
• Experience owning real-time communication systems in production environments
• Strong software engineering skills and demonstrated experience designing, writing, reviewing, and debugging production backend or platform code
• 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,…