Senior Software Engineer, Voice AI / Backend

About the Role

Join a small engineering team building voice AI agents for customer-facing workflows. You will own projects end to end, from technical design through production, across applied AI, real-time audio, and distributed systems.

What You'll Do

• Build reliable voice AI systems, including retrieval, dynamic model routing, and testing speech transcription systems before production rollout.

• Design and operate distributed call scheduling systems that handle concurrent workloads, time zones, retries, race conditions, and provider limits.

• Extend agents across voice, messaging, and email, maintaining shared context between real-time and asynchronous interactions.

• Develop memory and reasoning systems that preserve context across customer workflows.

• Build tools that help configure agents, debug issues, and connect to CRM, calendar, and email systems.

• Improve tracing and resilience so teams can identify call failures and respond to issues with workers or providers.

What We're Looking For

• At least 2 years of experience building and owning production software, including distributed systems and end-