Senior Full-Stack Engineer - SuperApp

Develop and maintain web and backend services for SumUp's SuperApp.

• •The SuperApp squad owns parts of the merchant experience across Web, Android, iOS and the flows that millions of small business owners use every day to run and grow their businesses.
• •As our dedicated full stack web engineer within the squad, you'll own this space entirely, shaping technical direction, driving feature parity for SumUp's web experience.
• •Key Responsibilities Own and develop core web dashboard features including the first-time user experience, home screen widgets, quick actions, tools section, and communications centre.
• •Build and maintain the backend services that power these flows, ensuring a seamless and consistent experience across web and mobile.
• •Work closely with iOS and Android engineers, product managers, and designers to shape cross-platform solutions and contribute to technical direction.
• •Lead the design and refinement of technical solutions
• •writing clear documentation, making architectural decisions, and communicating progress to stakeholders.
• •Be an active contributor to the web chapter and the broader engineering community at SumUp.
• •Requirements Strong, proven experience with React.js and TypeScript, building scalable, maintainable frontend applications in a production environment.
• •Comfortable working across the stack, with experience building backend services or REST APIs, Go is a plus, but Node.js or similar is equally welcome.