Senior Software Engineer, Voice AI / Backend

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Berlin ABOUT THE ROLE Join a small engineering team building voice AI agents for customer-facing business workflows. You will own projects from product decisions through architecture and production delivery, helping make real-time AI interactions reliable and useful. WHAT YOU'LL DO - Build reliable voice AI systems, including retrieval-augmented generation, dynamic model routing, and testing new transcription systems before release. - Design and operate distributed call scheduling systems that handle concurrency, time zones, retries, provider limits, and failures. - Extend agents across voice…