Senior Fullstack Engineer — AI Healthcare Platform (Remote)

Heidi; Greater London; On-site; GBP 100,000 - 140,000; Full time

Benefits offered by this job

Health and dental cover

Annual learning and development budget

Health and wellness allowance

Home office budget

Parental leave: 26 weeks (primary) + 5

Equity

Job summary

Heidi is hiring a Senior Full-Stack Engineer in the UK to own features end-to-end across React/TypeScript frontend and Python backend. You design data models, ship production-grade services, and iterate on clinician needs within a fast-growing AI healthcare product.

You’ll work in a flat, flexible team building for 190+ countries with a focus on performance, security, and scalability, plus equity and a generous learning budget.

Qualifications

• 5+ years of software engineering experience across frontend and backend.
• Strong React and TypeScript skills; experience with Next.js or similar.
• Python production experience building backend services.
• Hands-on MongoDB and Redis; data modelling and caching.
• Experience building and managing APIs; security and versioning.

Responsibilities

• Own features from database to browser: data model, Python service, React/TypeScript UI.
• Build fast, accessible interfaces in React/TypeScript/Next.js.
• Design and run backend services in Python with MongoDB/Redis.
• Design APIs, ensure testing, security, and versioning.
• Develop and manage message queues for real-time data.
• Shape cloud infra for scale and reliability.
• Collaborate with product/design/AI to ship workflows and iterate.
• Write maintainable, testable code.

Job description

Heidi is hiring a Senior Full-Stack Engineer in the UK to own features end-to-end across React/TypeScript frontend and Python backend. You design data models, ship production-grade services, and iterate on clinician needs within a fast-growing AI healthcare product.

You’ll work in a flat, flexible team building for 190+ countries with a focus on performance, security, and scalability, plus equity and a generous learning budget.