At a glance

💷 Compensation: £75k-95k+ & 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 can be prevented are missed and 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. The DoctorOS, our emerging clinical platform, is becoming the backbone of modern healthcare delivery. We combine rigorous clinical leadership, technology adapted for real-world care, 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 will be to build safe, production-ready clinical AI

As a Founding Product Engineer, you will help define and build DoctorOS from the ground up.

This is a product-first engineering role. You’ll obsess over UX, performance, reliability, and real-world clinical workflows. You’ll work across frontend, backend, and infrastructure, shipping features that doctors use every day.

AI is part of our platform but this role is about building excellent product experiences. If you’re excited about AI, great. If not, that’s fine too.

There is no separation between product, engineering, and ownership here. You will shape what we build and how we build it.

Frontend: React 19 with TypeScript
Backend: AWS serverless - Lambda, API Gateway, DynamoDB, and S3
Authentication + Database: Supabase
Tooling: Playwright for testing, Tailwind for styling, Radix UI for components

You will own:

• The entire Product lifecycle: inference pipelines, retrieval, fine-tuning, evals, safety mitigations, and monitoring.

• Clinical-grade safety infrastructure: hallucination detection, error monitoring, model governance, incident tooling and system-level guardrails.

• Human-in-the-loop clinical validation: working directly with doctors and our clinical leads to define acceptance criteria and run prospective evaluations.

• End-to-end shipping: design → prototype → deploy → measure → iterate.

• Future team growth: help hire the next engineers and shape the technical culture from the ground up.

There is no partition between research, engineering, and product…… here you are all three.

Who You Are

We don’t care about pedigree. We care about what you’ve built and how you think.

You thrive when:

We don’t care about pedigree. We care about what you’ve built and how you think.

You thrive when:

• The product is real and used daily

• The stakes are high and quality matters

• You own outcomes, not just tickets

• You work closely with users and iterate fast

You’ll be a great fit if you have:

• Strong experience with React and TypeScript in production

• A track record of shipping polished, user-centric products

• Solid full-stack instincts (even if frontend is your strength)

• High agency and product intuition

• Good judgment around reliability, performance, and UX

Nice to have (not required)

• Experience working with AI-powered features or LLM APIs

• Familiarity with regulated or high-trust environments

• Startup or founding-team experience

• Interest in healthcare or clinician-facing products

Bonus if you:

• Have worked in regulated environments

• Built software/AI as a medical device

• Have clinical knowledge, or have shipped tools used by clinicians

• Have founded or been early at a startup
  

Culture- The Asterix Way

We are a small, deeply ambitious, and intensely collaborative team. We move fast because what we’re building matters.

Humble

We assume we’re wrong until the data or a clinician proves otherwise. We default to curiosity. We ask questions. We help each other level up.

High-intensity - Founder mentality - No corporate wannabe’s

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.

Solving one of society’s biggest problems won't happen in a 9-to-5. We need our team to understand we will always ask for that little bit extra. We work hard, but with intention.

Joyful energy

We take the work seriously but not ourselves. We laugh a lot. We celebrate the small wins. We show up with energy, optimism, and kindness, and back each other completely

If you bring enthusiasm and momentum, you’ll fit right in.

In-person by design

We work together, shoulder-to-shoulder in London. This makes us faster, tighter, and better and it makes the journey more fun.

What Success Looks Like:

Months 1-3: Learn, Ship, Embed

You will:

• Ship production features used by clinicians

• Learn clinical workflows and real user needs deeply

• Improve frontend architecture and developer experience

• Own a meaningful slice of the product roadmap

Success looks like:

• Doctors using what you built every day

You shipping independently and raising the quality bar

Months 3-6: Lead, Architect, Level up

You will:

• Own major product areas end-to-end

• Make architectural decisions that shape DoctorOS

• Improve performance, reliability, and UX at scale

• Help interview and onboard new engineers

Success looks like:

• You’re the go-to person for key product surfaces

• You’re influencing product direction with founders and clinicians
  

Indicators of success:

• You’ve made major AI systems more reliable, faster, or safer.

• You’re the go-to person for at least one domain (infra, safety, evals, retrieval, etc).

• You’re influencing product direction directly with founders + clinicians.
  
  

Months 6–12: Own Systems, Shape the Company

You will:

• Own multi-quarter product initiatives

• Mentor new hires and shape engineering culture

• Build foundational systems that scale with the company

• Represent Asterix in technical conversations with partners

Success looks like:

• Your work becomes core infrastructure

• You’re trusted with company-defining decisions

• You’re shipping features that meaningfully reduce clinician workload and improve care outcomes
  

Result:

Promotion to Senior / Lead Engineer + meaningful equity top-up.

Why Join Now

Because you want to do the most meaningful, high-leverage work of your career and do it early enough that your fingerprints are on everything.

This role lets you:

• Redefine how high-quality healthcare is delivered to patients

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

• Learn faster than anywhere else

• Have outsized impact and ownership

• Earn meaningful equity while shaping the team from day 0

If you want to build something that saves real clinicians real time and improves real patient outcomes….. this is it!