Full-Stack Developer (m/f/d)

About This RoleAI processing…

Key Responsibilities

• 1
  Own features from discovery to production: You will partner directly with the other teams to scope ideas, design architectures, and ship features - collaborating closely with senior peers while leveraging AI tools to iterate with extreme speed.
• 2
  Build and refine the gift card experience, from buying a card to redeeming it.
• 3
  Develop the back-end that powers it: APIs, services, and data models.
• 4
  Work on the partner side too, the B2B self-serve product and the embeddable widgets that let other companies plug Joy_ in.
• 5
  Keep the codebase healthy, with shared components, design tokens, sensible tests, and an eye on performance and accessibility.

Requirements

• 3+ years building modern web products, full-stack. Genuinely comfortable on both the front-end and the back-end.
• A deep sense of product ownership. You don't wait to be told what each step is. When you see a broken piece, you take it upon yourself to fix it. You care about the product actually working , not just clearing backlog tickets.
• An exceptional teammate. We are a small, tight-knit team. We win together. That means you are someone who proactively communicates, communicates clearly in a remote async environment, enjoys code reviews as a tool for teaching and learning, and leaves your ego at the door.
• An elite execution mindset. You use modern tools (like AI terminal agents) to strip away boilerplate and focus your brainpower on architecture, security, and user delight.
• A real eye for detail. You care deeply about typography, layout, and motion. You can comfortably navigate Figma to extract design intent, tokens, and variables to build polished, pixel-perfect user experiences.
• You think in systems. Data models, API design, and performance are things you weigh up rather than work around.
• A pragmatic approach to quality. Unit and e2e tests where they earn their keep, with steady attention to performance and accessibility.
• Excellent spoken and written English. German is a plus, not a must.

Perks & Benefits