Senior Software Engineer

About Us

, We’re Building the Most Impactful Healthcare Company on Earth

We believe that access to a great doctor is a basic human right. Today, that’s not a reality. Delays, misdiagnoses, administrative chaos, and burnout plague the system.

One Human, One Doctor. We build AI teammates that augment clinicians — scribes, nurses, receptionists, translators — all powered by our own world‑class models and deployed in real‑world care.

• 450+ organizations signed 16 months
• AI agents cut admin by ~2.8 hours daily and reduce onboarding 85%.
• 5M+ Clinical Tasks completed to date, serving 36+ specialties.
• Raised $25M from YC, Eric Yuan, Amity, Semper Virens
• Patented AI architecture (Med Con-1)
  outperforms GPT-4.5, Gemini, Claude on clinical reasoning tasks

Sully requires A-players capable of 4 months = 1 year output.

This role is structured as a Contract-to-Hire position with a 60-day trial period. Sully.ai maintains an exceptionally high performance bar, and this structure ensures mutual alignment before transitioning to full-time.

Design, implement, and optimize core components across frontend, backend, and model integrations, while driving engineering direction in close collaboration with our co-founders.

• Senior‑level full‑stack experience in React, Type Script, and Node.js
• Proven ability to design, ship, and scale LLM‑powered applications.
• Expertise in API design, streaming, and CI/CD pipelines.
• Strong cloud infrastructure background (AWS, GCP, or Azure).
• Track record of building reliable systems with measurable performance and error budgets.

• Audit current cross‑agent flows for UI/UX cohesion.
• Implement shared components and typed contracts for reliability.
• Establish instrumentation for frontend performance and model round‑trip tracing.

• Deliver end‑to‑end tested, production‑grade agentic workflows with