Backend Engineer - Run & Grow

SumUp·Sofia, Bulgaria·Posted 7 October 2026

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About the role

About the Run & Grow: Run & Grow is where SumUp builds the platforms and capabilities that help merchants discover, join, use, and continue growing with our products. The tribe brings together engineering, product, design, and revenue operations teams around two connected goals: helping SumUp serve and retain merchants, and accelerating acquisition, activation, and engagement. Our work sits at the heart of SumUp’s growth engine. We turn complex challenges across merchant acquisition, identity, marketing technology, commercial systems, operations, risk, and compliance into reliable products and services that other teams can build on. The systems we create help SumUp move faster, make better decisions, and deliver a simpler experience to millions of small businesses. Joining Run & Grow means working on high-impact engineering problems with a broad view of the business. You’ll collaborate across disciplines and teams, shape the foundations behind important merchant journeys, and help create a more connected, scalable way for SumUp to run and grow. What you’ll do: Design, build, and operate production-grade backend services, APIs, and integrations, primarily using Go. Build…

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