Sully.ai

Head of Engineering, Platform

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.

About the Role

  • We’re hiring a Head of Engineering, Platform to own and scale the Platform domain with full technical and execution ownership for its surface area.

Key Responsibilities

  • End-to-end engineering execution: architecture → roadmap → delivery → reliability.
  • Step-function performance improvements — targeting 50%+ latency cuts across AI workflows.
  • Observability, metrics, and model-selection systems that hold up at scale.
  • Engineering rituals that keep teams shipping: standups, backlog ownership (Linear), cross-functional coordination.
  • Translating product goals into clear plans, timelines, and unblocked teams.
  • Continuous quality pipelines: accuracy, completeness, reliability of every output.
  • Engineering bar across the stack: code quality, reviews, on-call, operational rigor.

Hard Requirements

  • You've built something from zero and shipped it: founder, founding engineer, or first technical hire at a company that actually mattered to you.
  • You've led people (even a small team) and made them better, not just managed them.
  • You thrive in high-intensity, early-stage environments, YC, seed-stage, zero-to-one — where speed and judgment are the whole game.
  • Ambiguity is your operating system. Incomplete direction → clear technical plan → shipped product. No heavy process needed.
  • You default to leverage and simplicity: durable solutions, sharp instinct for when to optimize vs. when to ship.
  • You still write code. This is a player-coach role, not a meetings role.

Key Results (First 90 Days)

  • Take full ownership of the Platform engineering domain.
  • Ensure end-to-end observability and alerting for core workflows.
  • Define the domain's key performance, reliability, and quality metrics.
  • Identify and ship at least one high-impact improvement.
  • Establish execution cadence, priorities, and quality standards.

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: Autonomous team of AI agents that runs the entire hospital operations

💰 Compensation

Salary Range: $280,000 - $400,000

📋 Job Details

Job Type: Full-time
Experience Level: 6+ years
Engineering Type: Full stack