Backend Engineer (Golang) - Transfers Europe

Academic Key; Berlin; Hybrid; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Office-first setup

Virtual Stock Option programme

€2000 L&D budget

Pension scheme matching up to 20%

28 days paid leave + holidays

Urban Sports Club subsidy

Job summary

SumUp is recruiting a Backend Engineer (Golang) for the Transfers Europe squad in Berlin. You will build and operate backend services that handle money movement across Europe and the UK, with a focus on reliability and performance.

The role emphasizes hands-on development in Golang, cloud and containerized deployments, and close collaboration with product, QA, and other engineers. You will work within a technologically diverse environment using AWS, Kafka, PostgreSQL, Redis, Kubernetes, and a

Qualifications

• Experience building backend services in a modern environment.
• Proficient in Golang and comfortable learning other languages.
• Familiar with cloud-based systems, containerized workloads, and automated delivery pipelines.
• Experience supporting systems with production traffic and incident response is a plus.

Responsibilities

• Build and maintain production money movement backend services, contributing to delivery and observability.
• Own and deliver well-defined tasks and features within the team’s domain.
• Contribute to technical design and implementation following architectural patterns and best practices.
• Support the operation of systems through on-call rotations and post-incident reviews.
• Collaborate with Product, QA, and engineers to deliver end-to-end transfer capabilities.

Skills

Backend development

System design

On-call experience

Collaboration

Tools

Golang

AWS

Kafka

PostgreSQL

Redis

Kubernetes

Job description

Backend Engineer (Golang) - Transfers Europe

sumup · Berlin

Abroad

At SumUp, we empower small businesses with simple, affordable tools to start, run, and grow. Our Global Bank teams build the financial services that help merchants manage their money and keep their businesses moving. For merchants, a transfer should feel simple. Behind that experience is a complex network of payment schemes, banks, providers, messages, certificates, reconciliations, and edge cases—all of which need to work together reliably. Transfers Europe squad is the integration layer connecting SumUp’s internal systems with the financial networks that move money across Europe and the UK. We build and run the backend services behind SEPA and UK transfer flows, helping move money accurately and reliably across external networks. As a Backend Engineer, you’ll take ownership of services that process real money. You’ll work on complex systems problems to ensure seamless integrations as we scale, while seeing a direct connection between your engineering decisions and merchant trust. If you enjoy understanding how systems behave under real-world conditions while improving them over time, we’d love to hear from you. Our tech stack includes Golang, AWS, Kafka, PostgreSQL, Redis and Kubernetes, supported by a strong observability toolchain with Prometheus, Grafana, and Honeycomb. We also actively use AI-assisted development tools such as Cursor, GitHub Copilot, and others. What you’ll do Build and maintain production money movement backend services, contributing to their delivery, observability, and ongoing maintenance. Own and deliver well-defined tasks and features, and contribute to larger projects within the team’s domain. Contribute to technical design and implementation, following established architectural patterns and best practices. Improve service reliability and quality by writing tests, enhancing monitoring, and following established delivery pipelines. Support the operation of the systems you work on by participating in on-call rotations, incident response, and learning from post-incident reviews. Apply a backend and systems perspective during refinement, raising questions about risks, dependencies, and edge cases. Collaborate closely with Product, QA, and other engineers to deliver end-to-end transfer and banking capabilities. You’ll be great for this role if you Have experience building backend services in a modern environment and supporting them in production. You are proficient in Golang and and comfortable learning and working with other languages as needed Are comfortable working with cloud-based systems, containerized workloads, and automated delivery pipelines. Raise well-scoped pull requests, conduct thorough code reviews, and help maintain high standards of code quality and test coverage across the team Understand the fundamentals of system architecture, data modelling, and API design, and are eager to deepen this knowledge. Are curious about how your work fits into the broader system and product experience. Communicate clearly and collaborate effectively with engineers, product managers, and other stakeholders. Any of the following would be considered a plus Exposure to banking, payments, or financial systems, especially in regulated environments. Experience supporting systems with production traffic, including participating in incident response. Use of AI-assisted tools to improve development speed, learning, or code quality.

Benefits

• Opportunity to work with SumUppers globally on large-scale fintech products used by millions of businesses worldwide, from our Berlin office.
• office-first setup
• Commitment to Diversity and Inclusion: be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced.
• Enrolment onto our Virtual Stock Option programme: you will own a stake in SumUp's future success.
• A dedicated annual L&D budget of €2000 for your individual development, which can be used to attend conferences and/or advance your career through further education.
• A corporate pension scheme where we match up to 20% of your contributions.
• Generous time off: enjoy 28 days of paid leave plus public holidays and special leave days.
• Numerous other benefits such as Urban Sports Club subsidy, Kita placement assistance, subsidised office lunches.
• Break4me: 1-month sabbatical after 3 years of service.
• Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team.

About SumUp Be empowered to do more that matters. At SumUp, we're on a mission to empower small businesses across the globe by providing a vast set of simple and affordable business tools to help them start, run, and grow their businesses. Today, over 4 million businesses in 36 markets rely on SumUp as their financial partner to manage payments, finance and customer relationships. Our commitment to small businesses is reflected in our diverse team of over 3,000 SumUppers