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Senior Fullstack Engineer - Localization

sumup • Berlin • published 2026-09-12 16:56:13.659535

Description

The Localization team builds and owns the systems that make sure every merchant, in every one of our 38 markets, can understand and use our products in their own language. It's one of the most critical enablers of SumUp's global growth, sitting at the heart of how fast and how well we can go to market anywhere in the world. As our Senior Full Stack Engineer, you'll bring dedicated engineering ownership by working closely with the team to scope, build and ship the systems, integrations and tooling accelerate the ongoing evolution of our localization platform towards greater automation, scalability and end-to-end integration. If you want autonomy, meaningful scope, and the chance to shape a growing function, this is the role. What you'll do: Design, build and optimise localization solutions across product, CMS, CRM, marketing and design systems, so content moves faster without compromising quality Improve the localization management platform to give the team greater visibility and control while reducing manual steps Embed automated language and quality checks into several steps of the localization workflows, catching issues before they reach production Improve the experience for deve...

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