Builder jobs in United Kingdom

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Healf was founded by two brothers - Max and Lestat - with a relentless drive to reshape health and wellness.

Their journey has been fuelled by hard work, intensity, and a commitment to build something transformative.

Like all of us, they’re here to make a lasting impact.

If modern wellbeing were redesigned from scratch, it wouldn’t live in a GP’s office or a cluttered supplement aisle. It would be digital-first, beautifully curated, and powered by data that actually helps you feel your best.

That’s what we’re building atHealf -an ecommerce platform at the intersection of personalised health and curated wellbeing. We connect customers with the world’s most effective products acrossEAT MOVE MINDand SLEEP, and we’re just getting started.

We combineculture-shaping storytelling,cutting-edge health tech(like our new blood testing platform,Healf Zone), anda best-in-class product experienceto help people build rituals that work.

Backed by investors behindSoho House, Alo Yoga, Cult Beauty, and Innocent, we’re scaling fast and redefining how the world shops and lives well.

We’re looking for a versatile Full-Stack Developer to join our fast-moving team. You’ll work across our web and mobile platforms to ship features, run experiments, and solve meaningful problems that improve customer experience and conversion rates.

Key Responsibilities:

Deliver high-quality code across our React-based website and React Native app.

Collaborate across teams (product, design, marketing) to build features that drive retention, engagement, and CVR.

Translate Figma designs into pixel-perfect components, contributing to a beautiful, intuitive UI.

Integrate with platforms like Shopify, third-party APIs, and AI tools to build intelligent user experiences.

Support technical initiatives across web and mobile—everything from UX polish to scalable backend support.

Qualifications:

5+ years of experience in mobile app development, with a strong foundation in React Native. Fluent in TypeScript and modern React development.

Familiarity with Shopify and eCommerce ecosystems, especially around performance and UX.

Comfort with backend integration, API consumption, and tools like GraphQL and Next.js.

A performance- and outcome-driven mindset—you care about speed, CVR, and great user experiences.

An adaptable builder who thrives in fast-paced, iterative environments.

A passion for clean, modular code and scalable architecture

Strong working knowledge of Figma and design-to-development workflows.

Great collaboration skills and the ability to communicate clearly across teams

Nice-to-Have:

Experience with AI tools and APIs, especially for personalization or product discovery.

Familiarity with A/B testing frameworks, analytics tools, and data-led iteration.

Knowledge of CI/CD and deployment pipelines.

Background in consumer health, wellness, or eCommerce.

• Do your life’s best work– Build something that matters, with a team that moves fast and aims high
• Surround yourself with A+ talent– You’ll work with high-performers who care deeply and raise the standard every day
• Be a builder– This isn’t a cog-in-the-machine role. You’ll help shape our voice, culture, and growth
• Wellbeing is the lifestyle– From office yoga to Healf Zone insights, everything we do is rooted in our pillars: EAT MOVE MIND SLEEP

• 50% staff discount on all products
• PremiumWellhub membership– access 1000s of gyms, yoga & fitness studios
• Weekly in-office yoga
• Complimentary sauna + ice bath sessions
• 5-day summer team retreat
• Hybrid working: 3 days/week in our London office (or open to exceptional remote candidates)