Senior AI Engineer, Voice Systems

About the Company

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• Early-stage, venture-backed healthcare AI company building an AI nurse concierge for Medicare beneficiaries
• Pairs patients with a dedicated healthcare advocate while AI agents handle the tedious backend work, all covered by Medicare
• Reached roughly $1M in run-rate revenue in under a year; team of nine
• Industry: Healthcare, AI. Founded: 2025

The Role

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• Own and improve the agentic systems that automate healthcare-navigation tasks on behalf of patients, essentially building the "cursor for nurses"
• Use reinforcement learning from real interactions to continuously improve quality

What You'll Be Doing

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• Automate tasks advocates currently do manually, including outbound voice calls to insurance, doctors, pharmacies, and patients
• Build and improve agentic search and multi-agent orchestration across complex healthcare workflows
• Design evaluation infrastructure to measure and improve the quality of AI automations
• Implement reinforcement-learning loops that use real actions to train and improve models over time
• Ship fast and iterate directly with the team that listens to real conversations daily

Requirements

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• Shipped voice AI to production (not demos)
• 1 to 10 years of experience in AI/ML engineering, including systems with a voice component
• A clear signal of excellence: a growing startup (Series A to D), major products shipped, funding raised, olympiad, or similar
• Undergraduate CS degree from a top-25 university in the US or Canada
• Production voice AI stack: streaming STT/TTS, telephony (Twilio/SIP), latency optimization, endpointing
• Agentic systems: context engineering, multi-agent orchestration, tool use, RAG
• Rapid learner who thrives in ambiguity and builds the playbook rather than following one
• Willing to relocate to San Francisco in Q1 2027

Nice to Haves

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* Ex-YC founder, fro