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React Native Engineer

Location: Remote (UK or EU only)


About us

Unbound is an early-stage startup on a mission to make looking after your health effortless, accessible, and worth your while. We’re creating a future-forward, human-led health membership where health and wellness meets culture, connection, and innovation.

We combine well-designed physical spaces, a personalised digital companion, and a community that keeps you motivated. We are creating a digital wellness platform designed for individuals seeking to understand and improve their overall wellbeing through a dynamic digital twin model that empowers our members to find their unique version of health.

Our approach is guided by our core principles, including the firm belief that prevention is effective when it's personal, sticks when it’s social, and everything we do must be guided by science.

The Role

As we build out our Engineering Team, we’re looking for an experienced Backend/Full-stack Engineer to work across both our API, consumer-facing web app and internal tools.

You’ll play a key role in shaping Unbound’s technical foundation, designing systems that are secure, scalable, and built to evolve as we grow.

Key Responsibilities

● Design, build, and maintain backend services using NestJS and Postgres ● Develop and maintain APIs that power our web, mobile and internal applications ● Contribute to product and architecture decisions in a fast-moving environment ● Ensure scalability, security, and reliability across the stack ● Collaborate with product, design, and frontend teams to deliver seamless user experiences ● Integrate AI-powered workflows into our stack

About You

● Strong backend engineering skills: NestJS, Postgres, API design ● Solid understanding of modern backend practices (CI/CD, API testing, cloud infra) ● Experience designing scalable, maintainable systems ● Exposure to modern frontend frameworks (Next.js, React, React Native) ● Product-minded and focused on reliability and performance, and user impact ● Thrive in an early-stage, agile environment with a high degree of ownership

Nice to have

● Interest in AI and new developer tools (e.g. Cursor AI, Claude Code)

● Familiarity with React Native

● Previous experience in Health Tech or regulated environments (ie: Fintech)

● Background in early-stage startups or greenfield product builds

Join the Unbound Mission

Unbound is creating a new kind of health experience, where technology, design, and science come together to make wellbeing effortless and personal.

If you’re passionate about building intuitive, beautifully crafted products that help people take charge of their health, we’d love to hear from you.

Unbound is proud to be an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

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Years of experience

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Where are you based?

This role is open to applicants based in the UK or EU only.