Senior Fullstack Engineer

• 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

Requirements

• 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).

Core Competencies

Demonstrates expertise in building patient-facing web applications using Next.js, React, and TypeScript, with a strong focus on accessibility and performance. Proficient in backend development with .NET and Node.js, integrating payment systems, and implementing robust testing practices.

Highest-signal resume keywords

• Next.js Development


• React Expertise


• Fullstack Development (.NET, Node/TypeScript)


• Unit/End-to-End Testing (Vitest, Playwright)


• CI/CD Pipelines (GitLab)

ATS Optimization Keywords

Hard Skills

• Next.js


• React


• TypeScript


• .NET (C#)


• Node.js


• REST APIs


• Stripe


• Unit Testing


• End-to-End Testing


• Modern CSS

Soft Skills

• Mentoring


• Collaboration

Industry Keywords

• Healthcare


• Patient Experience


• Subscription Billing


• Accessibility


• Multi-Tenant Architecture

Tools & Technologies

• GitLab CI


• Datadog RUM


• OpenTelemetry


• Tailwind


• Radix


• Pnpm


• Turborepo