Legion Health (YC S21) is hiring a founding engineer (SF, in-person)

by the_danny_g on 12/8/2025, 5:01:11 PM

Legion Health (YC S21) operates a psychiatric practice and is building the AI-native operations layer for mental health care. We focus on the operational backend: scheduling, intake, documentation, billing, and care coordination. These workflows—not diagnostics—are the main bottlenecks in mental health delivery.<p>We run our own clinic, so the systems you build ship directly into real patient care. Our agent infrastructure currently supports more than 2,000 patients with one human support lead.<p>We’re hiring a Founding Engineer (in-person, San Francisco). You’d work directly with the founders on:<p>event-driven backend systems (Node.js, TypeScript, Postgres&#x2F;Supabase, AWS)<p>LLM agent tooling (tool use, retries, memory, context management)<p>internal operations tools for both humans and agents<p>state&#x2F;coordination logic that represents a patient’s journey<p>HIPAA-compliant data and audit pipelines<p>We’re open to backend or full-stack&#x2F;product engineers who think in systems and have owned real workflows end-to-end. Prior experience with LLMs is optional; interest is required.<p>Details: full-time, in-person SF, salary $130k–$180k, equity 0.1–0.6%.<p>Apply here: <a href="https:&#x2F;&#x2F;www.ycombinator.com&#x2F;companies&#x2F;legion-health&#x2F;jobs&#x2F;oc6nPUu-founding-engineer-ai-native-ops-infrastructure-yc-s21-2m-arr-6-3m-raised">https:&#x2F;&#x2F;www.ycombinator.com&#x2F;companies&#x2F;legion-health&#x2F;jobs&#x2F;oc6...</a>

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