Senior Fullstack Engineer (Bristol)

You'll be a senior engineer on our B2C team, building HealthHero's direct-to-consumer digital clinic, where patients access adult ADHD assessment, diagnosis and ongoing treatment, and a clinician-led weight-management service with medication delivered to their door. You'll own features end-to-end: from accessible, beautifully-crafted React user journeys through to the server-side integrations that connect commerce, payments, clinical systems and pharmacy fulfilment. Your work directly shapes how thousands of patients experience life-changing care, from the very first click.

Day to day, your responsibilities will include but not be limited to:

• Build patient-facing features end-to-end across our Next.js frontend and server-side BFF layer - onboarding and eligibility journeys, subscription checkout, condition management, medication reordering and patient records
• Own integrations with the services behind the app: Medusa commerce, Stripe subscription billing, HealthHero's clinical platform APIs, our questionnaire/triage engine, pharmacy services and Sanity CMS
• Lead the technical design of new services and markets - the platform is multi-tenant and white-label (UK, Ireland, Germany and retail partners), with feature-flagged rollouts and full internationalisation
• Craft accessible, responsive UI in our shared component library (Radix primitives + Tailwind), keeping quality and consistency high across every patient touchpoint
• Champion engineering quality - unit and component tests with Vitest, end-to-end and accessibility tests with Playwright, thoughtful code review and green pipelines in GitLab CI
• Improve reliability, performance and conversion - using Datadog RUM, OpenTelemetry tracing and analytics to find and fix what matters most to patients and the business
• Mentor other engineers and raise the bar through pairing, review and knowledge sharing
• Collaborate closely with product, design and clinical colleagues to turn regulated healthcare requirements into simple, humane user experiences

We have an exciting opportunity for a Senior Fullstack Engineer to join our Product & Tech team on a full-time, permanent basis in Bristol. If you're a self-starter with a keen interest in software development and enjoy collaborating in a team setting, we want to hear from you., * 5+ years building production web applications, with deep expertise in React and TypeScript and substantial Next.js experience (App Router, server components and server actions ideally).

• Genuinely fullstack: backend experience with .NET (C#) as well as Node/TypeScript - designing and consuming REST APIs, building backend-for-frontend layers, and working with authentication flows (OAuth/OIDC) and session management.
• Experience with payments and subscriptions - Stripe or a comparable provider - including checkout, billing lifecycle and failure handling.
• A strong testing habit: unit/component testing (Vitest or Jest + Testing Library) and end-to-end testing (Playwright or Cypress).
• Modern CSS and component-driven UI development (Tailwind, Radix/shadcn or similar), with a real commitment to accessibility.
• Fluency with CI/CD pipelines and collaborative Git workflows (we use GitLab), and monorepo tooling (pnpm workspaces, Turborepo).

Desirable Skills (nice-to-haves):

• Headless commerce (Medusa, commercetools, Shopify) or headless CMS (Sanity, Contentful) experience.
• Internationalisation and multi-tenant / white-label product experience.
• Observability tooling (Datadog, OpenTelemetry) and feature-flag-driven delivery (Unleash, LaunchDarkly).
• Experience in healthtech or another regulated domain, or building direct-to-consumer e-commerce journeys.

• Ongoing professional development
• Generous holiday entitlement
• Company Pension Scheme
• Simply Health cash plan membership
• Life Assurance

Salary: Highly Competitive + excellent benefits Office based: Bristol (hybrid working available)

We exist to simplify healthcare and improve lives by making care feel instant, intelligent and human. HealthHero is Europe's largest digital health provider, delivering 4 million consultations per year. But we're just getting started. We've built a seamless digital clinic that brings body and mind together - from GP appointments and mental health support to long-term condition management. By sitting behind the world's leading insurers and employers and supporting public health systems, we make it easier for millions of people to get the care they need, exactly when they need it. We are a high-growth, capital-backed business with a sophisticated scale strategy. Our team is a unique blend of digital-native pioneers, management consultants, creatives and industry-leading clinical experts. We aren't just digitising appointments; we're building the next generation of healthcare. We're creating an AI-powered, always-on ecosystem that learns from every interaction to shift the needle from reactive treatment to proactive, sustainable health. At HealthHero, we are digital when it should be and human where it counts. Join us, and help build a next generation health system the world is waiting for. Why Us? * A chance to shape content for one of Europe's most ambitious digital health companies * Work that matters - making healthcare simpler, more accessible and more human * Supportive, down-to-earth team with a strong mission and values