Sully.ai

Senior Integrations Engineer (Contract to Hire)

San Francisco, US Full-time

About Us
At Sully.ai, 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.

Our Mission: 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.

Our Traction

  • 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 (MedCon-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.

What You'll Do:

  • Partner closely with co-founders to set integration strategy and make build vs. buy decisions.

  • Work directly with customers to gather requirements, define workflows, and deliver production-ready solutions.

  • Collaborate with AI/ML engineers to bridge integrations with applied GenAI systems, ensuring real-world deployment of intelligent automation.

What you _ Must _ Bring:

  • Deep expertise in Node.js, TypeScript, and Python.

  • Proven experience integrating with multiple EHR systems across SMB and enterprise environments.

  • Hands-on work with FHIR, HL7, REST APIs, SOAP APIs, and hybrid/on-prem systems.

  • Experience building with RPA frameworks (Selenium or similar).

  • Background in customer-facing engineering roles, gathering requirements and translating them into technical deliverables.

First-Month Focus

  • Audit current integrations, reliability, and security posture.

  • Finalize a 12-month integration roadmap and target list across EHRs and partner APIs.

  • Ship an SDK and sample app MVP for partner onboarding.

Success OKRs (90 Days)

  • Migrate 3 legacy integrations to the EHR Proxy.

  • Reach 100% automated test coverage for all integrations behind the EHR proxies.

  • Ensure reusability across all integration projects to deduce engineering rework by 50%.

If you’ve ever said, “I want to do work that actually matters”, this is it. Let’s build something life-changing, together.

Who Thrives Here

  • Entrepreneurial to your core : You think in outcomes, thrive in chaos, and take ownership without limits

  • Mission-obsessed : You’re here to save lives, not just ship features — patients and doctors are your why.

  • Impact-driven & fast-moving : You sprint toward hard problems and ship with sharp judgment.

  • Elite teammate : You raise the bar through high standards, direct feedback, and craft excellence.

Why Join Sully.ai ?
🔥 Revolutionizing the antiquated $800B+ Healthcare market

🧠 50%+ of us are ex-founders. We hire A-players, not passengers

⚡️ Speed matters - we operate with urgency, autonomy, and ownership

🧪 You’ll work on real, first-of-their-kind problems at the edge of AI and medicine

❤️ Your work helps doctors reclaim their time - and patients get better, faster care

Sully.ai is an equal opportunity employer. In addition to EEO being the law, it is a policy that is fully consistent with our principles. All qualified applicants will receive consideration for employment without regard to status as a protected veteran or a qualified individual with a disability, or other protected status such as race, religion, color, national origin, sex, sexual orientation, gender identity, genetic information, pregnancy or age. Sully.ai prohibits any form of workplace harassment. 

🚀 Y Combinator Company Info

Y Combinator Batch: S21
Team Size: 49 employees
Industry: B2B Software and Services -> Productivity
Company Description: AutonomousOS for healthcare organizations

📋 Job Details

Job Type: Full-time
Engineering Type: Full stack