Senior/Mid-level Fullstack Engineer, Shop & Payments (React/Go)

About the role

Senior/Mid-level Fullstack Engineer in the Shop Team – This team sits at the heart of our mission, building the gateway that allows medical students around the world to be able to access the AMBOSS platform. Your work has a direct, measurable impact on revenue and user discovery.

What you'll do

• Ramp Up: Become a domain expert in AMBOSS's shop and payment architecture, from the purchase experience to international tax compliance.
• Ship Impact: Deliver end-to-end features and improvements from discovery to deployment. That could be shipping a real product on shop or providing a localized, frictionless checkout experience for our global users.
• Collaborate: Build deep working relationships with Product, Design, and Finance stakeholders.
• Build & Iterate: Design and evolve high-availability services handling regional payment methods and subscription logic.
• Own the Lifecycle: Manage discovery, technical design, deployment, and monitoring.
• Innovate with AI: Use tools like Cursor or Copilot and research how emerging technologies (LLMs, automation) can add genuine user value.
• Scale: Extend existing systems to support new markets and medical disciplines while maintaining clean integration with core infrastructure.

What you'll need

• Go (Golang): Strong backend fundamentals (concurrency, API design, error handling).
• React & TypeScript: Solid foundations for building intuitive, responsive frontends.
• API Design: Experience with GraphQL and/or REST.
• Ops & Observability: Hands-on experience with Docker, CI/CD, and AWS/Kubernetes. You write your own tests and read your own dashboards.
• Architectural Intuition: The ability to deconstruct complex codebases and (for Seniors) design data models at scale.
• Product-Minded: You care about why we build, focusing on user impact and business value over technical complexity for its own sake.
• Pragmatic: You know when to ship a quick proof-of-concept and when to invest in long-term stability.
• AI-Native: You are comfortable with (and excited by) AI-assisted development.

Nice to have

• Experience with Payment Providers (Stripe, Adyen, Braintree).
• Understanding of International Tax or fintech compliance.
• Exposure to Event-driven architectures or message queues.
• Previous work with LLM integration or AI-powered features.

What they offer

• Rest & Time Off (30 paid vacation days, AMBOSS holiday, personal purpose day)
• Food & Office Comfort (Daily healthy breakfast & lunch by in-house chef in Berlin HQ, AMBOSS daycare)
• Health, Fitness & Mobility (Urban Sports Club -M plan-, Fitbit Versa 3, Deutschland Ticket)
• Work remotely from other office spaces in Cologne, Sardinia, Cape Town