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Senior Full-Stack Engineer - SuperApp

Berlin💼 Full-time🗓 2026-06-22 → 2026-07-31

Core

Own and develop core web dashboard features for the merchant experience, including first-time user flows, widgets, and tools, ensuring feature parity across web and mobile platforms.

Role type

Senior Full-Stack Web Engineer

Builds

Merchant-facing web dashboards and backend services for SumUp's SuperApp

Domain

Fintech / Payments

Deliverable

production ML models | product features

Required skills

React.js, TypeScript, REST APIs, Node.js, Go, system design, code refactoring

Preferred skills

Cross-platform solution design, architectural decision making

Technologies

React.js, TypeScript, Node.js, Go

Responsibilities

Develop core web dashboard features (home screen, quick actions, communications centre); Build and maintain backend services powering merchant flows; Collaborate with iOS/Android engineers and product teams; Lead technical solution design and documentation; Contribute to the web chapter engineering community

Seniority

Senior, hands-on IC

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