Founding Backend Engineer - AI-Driven Preventive Health

Do Health; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

Do Health is hiring a Founding Backend Engineer to own major backend features end-to-end, shape architecture with the lead engineer, and scale our blood-testing infrastructure across the UK and beyond. You will build production AI systems that personalize health data at scale and improve reliability and observability as the product grows.

You will work closely with product, design, and clinical teams in a fast-paced startup environment, with strong ownership and minimal layers between you and

Qualifications

• 5-8 years of backend experience with strong fundamentals.
• Experience at a startup or scale-up where you owned things; architectural thinking.

Responsibilities

• Own major backend features end-to-end - design, build, ship, monitor, iterate.
• Shape architecture with the lead; make real technical decisions.
• Scale blood testing infrastructure across the UK and internationally.
• Build production AI systems - personalization engines that use longitudinal data at scale.
• Improve reliability, observability, and foundational systems as the product grows.
• Collaborate directly with product, design, and clinical teams.

Skills

Backend development

Architectural thinking

End-to-end systems design

Reliability engineering

AI tool usage

Decision making in ambiguity

Tools

TypeScript/Node.js

Go

Python

Job description

Do Health is hiring a Founding Backend Engineer to own major backend features end-to-end, shape architecture with the lead engineer, and scale our blood-testing infrastructure across the UK and beyond. You will build production AI systems that personalize health data at scale and improve reliability and observability as the product grows.

You will work closely with product, design, and clinical teams in a fast-paced startup environment, with strong ownership and minimal layers between you and