Senior Fullstack Engineer

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 youre a self-starter with a keen interest in software development and enjoy collaborating in a team setting we want to hear from you.

About the role

Youll be a senior engineer on our B2C team building Health Heros 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. Youll 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 frontend and server-side BFF layer - onboarding and eligibility journeys subscription checkout condition management medication reordering and patient records
• Ownintegrations with the services behind the app:
  Medusa commerce Stripe subscription billing Health Heros clinical platform APIs our questionnaire/triage engine pharmacy services and Sanity CMS
• Leadthe 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 Git Lab CI
• Improve reliability performance and conversion - using Datadog RUM Open Telemetry 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

What you will bring (the must-haves):

• 5 years building production web applications with deep expertise inReact and Type Script and substantial experience (App Router server components and server actions ideally).
• Genuinely fullstack: backend experience with .NET (C#) as well as Node/Type Script - designing and consuming REST APIs building backend-for-frontend layers and working with authentication flows (OAuth/OIDC) and session management.
• Experience withpayments 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 toaccessibility.
• Fluency with CI/CD pipelines and collaborative Git workflows (we use Git Lab) and monorepo tooling (pnpm work spaces Turborepo).

Desirable Skills (nice-to-haves):

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

About Health Hero

About us

We exist to simplify healthcare and improve lives by making care feel instant intelligent and human.

Health Hero is Europes largest digital health provider delivering 4 million consultations per year. But were just getting started. Weve 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 worlds leading insurers and employers and supporting public health systems we make it easier for millions of people…