Senior Backend Engineer

SumUp(5 days ago)

Cologne, GermanyOnsiteFull TimeSenior$104,198 - $141,385 (estimated)Engineering

About this role

Senior Backend Engineer joining SumUp’s Sell Online Tribe working on merchant-facing online products such as Payment Links, Virtual Terminal, and Unified Gift Cards. The role focuses on supporting scalability, reliability, and integrations across Online Store and Bookings to help small businesses sell and get paid. This is an office-first position based in Cologne.

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Required Skills

Golang
Backend Engineering
System Architecture
API Design
Data Modeling
Distributed Systems
AWS
Kubernetes
Kafka
Postgres

+2 more

About SumUp

sumup.com

SumUp is a global financial‑technology company that provides simple, affordable payment solutions for small businesses, including card readers, point‑of‑sale systems and online payment tools. Millions of merchants use SumUp’s hardware, mobile app and web platform to accept in‑person and remote payments, track sales and manage day‑to‑day operations. The company emphasizes ease of use, transparent pricing and broad international availability, backed by customer support and integrations to help merchants grow.