Founding Lead Product Engineer - Asterix Health (London)

At a glance

💷 Compensation: £120k-140k cash with generous equity

📍 Location: Onsite in Shoreditch, London

🤩 Benefits: Private health + dental by Bupa, all equipment covered

Asterix Exists for One Reason

To fix the biggest problem in healthcare: there are not enough doctors, and the system can no longer keep up. Millions of patients wait weeks for appointments. Millions more are stuck on hospital waitlists. Health conditions that could be prevented go unnoticed.

Asterix is building the only scalable solution: a new model of care where highly-qualified doctors are augmented by AI, safely, consistently, and measurably. DoctorOS, our emerging clinical platform, is becoming the backbone of modern healthcare delivery. We combine rigorous clinical leadership, world-class engineering, and AI tooling that makes doctors 10x more productive. We are backed by Entrepreneur First, recently closed an oversubscribed funding round, and live with some of the largest healthcare providers in the UK, generating revenue and expanding fast.

Your Mission: Build and Lead Product Engineering

As our first Lead Product Engineer, you will be both hands-on and a technical leader, driving product delivery and building the engineering team from the ground up. You will be the architect and owner of our production systems, making critical decisions about architecture, tooling, and team structure.

You will be expected to raise the technical bar, ensure production reliability, and mentor the next generation of engineers (as we scale) while staying deeply involved and being hands on with everything from coding, shipping, and iterating on features.

You Will Own

• Full Product Ownership: Build, ship, and iterate features end-to-end. Own critical parts of the stack: frontend, backend, infra, and integrations with AI systems.

• AI + Clinical Systems: Work with AI engineers to deploy safe, reliable clinical intelligence. Shape inference pipelines, evaluation frameworks, safety guardrails, and monitoring.

• Technical Leadership: Hire, mentor, and lead engineers. Define engineering culture and best practices. Ensure scalability, observability, and reliability.

• Architecture & Strategy: Make architectural decisions that define DoctorOS for years to come. Influence product direction and roadmap alongside founders and clinicians.

• High-Stakes Execution: Own systems that must work under strict safety, compliance, and clinical standards.
  
  

Our current tech stack

We expect the following to change and therefore we are open to engineers with different languages to help us evolve our stack to be the best in the market

• Frontend: React 19 + TypeScript

• Backend: AWS Serverless (Lambda, API Gateway, DynamoDB, S3)

• Auth + Database: Supabase

• Tooling: Playwright, Tailwind, Radix UI
  
  

Who You Are

We don’t care about pedigree. We care about what you’ve built, how you lead, and your judgment.

You thrive when:

• Stakes are high and feedback loops are tight

• You own outcomes end-to-end

• You are accountable for systems that must work and be trusted

• You are early-stage, hands-on, and enjoy building a team from scratch
  
  

You’ll be a great fit if you have:

• Been a founder or founding engineer

• Deep experience in production ML/AI, LLMs, or high-stakes software

• Shipped reliable systems that users depend on daily

• Built and led engineering teams at an early-stage startup

• Strong judgment around risk, safety, and quality in production
  
  

Bonus if you:

• Have worked in regulated environments

• Built clinical or healthcare software/AI

• Have clinical knowledge or experience shipping tools used by clinicians
  
  

Culture: The Asterix Way

Humble - We assume we’re wrong until the data or a clinician proves otherwise. Curiosity and questions are encouraged.

High-Intensity, Founder Mentality - You don’t wait for permission. You push problems to resolution. You act like an owner of the mission, the codebase, the infrastructure, and the culture.

Joyful Energy - We take the work seriously but not ourselves. We celebrate small wins, laugh a lot, and back each other completely.

In-person by design - Working shoulder-to-shoulder in London makes us faster, tighter, and better.

What Success Looks Like

Months 1-3: Learn & Ship

• Ship your first end-to-end features into clinical workflows

• Stand up core infrastructure for monitoring, safety, and reliability

• Become embedded with clinicians to understand real-world needs
  
  

Indicators: Features are used in production; you’re independently diagnosing, designing, and delivering improvements; the technical bar has risen.

Months 3-6: Lead & Architect

• Own full verticals of the product and AI stack

• Make architectural decisions shaping DoctorOS

• Improve reliability, safety, and throughput

• Interview and mentor new engineers
  
  

Indicators: You’re the go-to expert for key domains and influence product direction directly.

Months 6-12: Build the Org & Strategy

• Own multi-quarter roadmap areas with autonomy

• Lead major initiatives in clinical AI safety and reliability

• Architect next-gen capabilities in DoctorOS

• Mentor new hires and shape engineering culture
  
  

Indicators: Systems you build are core infrastructure; you are trusted with company-defining decisions; features materially reduce clinician workload and improve care.

Result of success will be: Promotion to Head of Product Engineering OR CTO & a meaningful equity top-up.

Why Join Now

• Redefine how high-quality healthcare is delivered

• Build AI systems that must be safe, measurable, and trusted

• Learn faster than anywhere else