Senior AI Engineer — Voice & Multi-Agent Systems

Jack

San Francisco (CA)

On-site

USD 180,000 - 220,000

Full time

2 days ago

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Benefits offered by this job

Competitive equity

Job summary

Jack is seeking a senior AI/ML engineer to automate healthcare advocate workflows and build multi-agent orchestration systems for production use. The role focuses on streaming STT/TTS, telephony, and RL loops that improve models with real nurse actions. A background in voice AI and startup exposure will help navigate ambiguity and drive rapid delivery.

Relocation to San Francisco in Q1 2027 is required. Base salary ranges with competitive equity are offered, with visa sponsorship possible for

Qualifications

1–10 years of experience in AI/ML engineering, building systems including voice AI.
Has shipped voice AI and agentic/LLM-powered systems to production (not demos).
Production voice AI stack: streaming STT/TTS, telephony, latency optimization, endpointing.
Agentic systems: context engineering, multi-agent orchestration, tool use, RAG.
Experience as a founder or from a late-stage startup, or Big Tech with startup exposure.

Responsibilities

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