Urgent! Backend Engineer - Global Bank - Local Job Opening in Berlin
At SumUp, the Global Bank team builds the core infrastructure and services that give merchants a digital bank account, helping small businesses manage their money easily and reliably.
The Balance Management Squad sits at the core of the Global Bank Platform.
Right now, our team is completing a major milestone: consolidating and modernizing our balance management system in Europe.
The next big step is creating a global transaction history service; a single, shared platform used by all regions to give merchants consistent and transparent views of their financial activity.
As a Backend Engineer, you’ll help modernize existing systems while balancing innovation with stability, collaborate with teams across regions, and build reliable services that manage diverse markets with different regulations.
If you enjoy solving complex problems on high-load systems, are curious about banking, and are looking for a team that tackles challenges head-on, we’d love to hear from you.
What You’ll Do
Build and evolve the SumUp’s core banking services that powers ledger operations and transactions, transforming our regional systems into a unified, scalable global platform.
Tackle complex distributed systems challenges, ensuring resilient services that continue to perform under high transaction volumes.
Support modernization initiatives by improving observability, adding test coverage, refactoring code for long-term maintainability, and gradually introducing new architectural patterns without disrupting live banking operations.
Contribute to key architectural decisions - build ledger and transaction history systems from the ground up, ensuring a globally scalable banking solution for our clients.
Collaborate with teams across Risk, Treasury, Finance, and Infrastructure to ensure smooth, compliant, and reliable global operations
Take ownership from design to production, running the services you build, monitoring their performance, and continuously improving how we deliver high-quality software at scale.
You’ll be great for this role if you
You have solid backend experience building reliable, high-volume services and you think carefully about system design, APIs, data modeling, and how services interact.
You are proficient in Golang and/or Kotlin and comfortable learning and working with other languages as needed, e.g. Elixir.
You write maintainable, well-tested code, follow CI/CD best practices, and take responsibility for the software you build from development to production.
You’re comfortable building, deploying, and running services in cloud environments like AWS using Docker and Kubernetes.
You’re eager to learn about relational databases that perform well under load and maintain data consistency.
You are a collaborator who enjoys working across regions, communicating clearly, exchanging feedback effectively, and making thoughtful technical decisions together.
You have a curiosity for building reliable financial services and banking domain
It’s a plus if you have
Knowledge of Elixir - some of our legacy services are written in Elixir, and while it's not essential, it would be useful if you've worked with it before
Deeper PostgreSQL experience - we rely heavily on Postgres, so if you've done performance tuning, complex queries, or schema design, that's a plus
Experience with event streaming platforms (Kafka preferred) and modern observability stacks (Grafana, Honeycomb, etc.)
Why you’ll enjoy working at SumUp
Be part of a company that values diversity and celebrates unique perspectives.
Work with a global team of skilled professionals in an environment that fosters collaboration, learning, and growth.
Be part of a global tribe building a banking solution from the ground up and delivering impactful solutions to the real-life problems of millions of SumUp merchants all over the world
Career growth and learning opportunities: We invest in your development through regular training, mentorship programs, SumUp University leadership cohort and a yearly learning budget (2, EUR)
Sabbatical program for tenured SumUppers
Join a global team where you belong: Check out our such as Pride Club, SumAfro, Neurodiversity, Grupos Mais, Women in Tech, and more
Health & wellness benefits: in-house fitness classes, gym in the office, subsidized Urban Sports Club and available psychotherapy sessions
A lot of other benefits such as Subsidized Public Transport Card, Kita placement assistance, Pension Scheme, Language Learning platform/courses etc.
Enrollment onto our virtual stock ownership program - you will own a stake in SumUp’s future success
About SumUp
We believe in the everyday hero.
Small business owners are at the heart of all we do, so we create powerful, easy-to-use financial solutions to help them run their businesses.
With a founder’s mentality and a 'team-first’ attitude, our diverse teams across Europe, South America and the United States work together to ensure that the small business owners we partner with can be successful doing what they love.
SumUp is an Equal Employment Opportunity employer that proudly pursues and hires a diverse workforce.
SumUp does not make hiring or employment decisions on the basis of race, colour, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age or any other basis protected by applicable laws or prohibited by company policy.
SumUp also strives for a healthy and safe workplace and strictly prohibits harassment of any kind.
Job Application Tip
We recognise that candidates feel they need to meet % of the job criteria in order to apply for a job.
Please note that this is only a guide.
If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.
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Unlock Your Backend Engineer Potential: Insight & Career Growth Guide
Real-time Backend Engineer Jobs Trends in Berlin, Germany (Graphical Representation)
Explore profound insights with Expertini's real-time, in-depth analysis, showcased through the graph below. This graph displays the job market trends for Backend Engineer in Berlin, Germany using a bar chart to represent the number of jobs available and a trend line to illustrate the trend over time. Specifically, the graph shows 18302 jobs in Germany and 2090 jobs in Berlin. This comprehensive analysis highlights market share and opportunities for professionals in Backend Engineer roles. These dynamic trends provide a better understanding of the job market landscape in these regions.
Great news! Sumup is currently hiring and seeking a Backend Engineer Global Bank to join their team. Feel free to download the job details.
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An organization's rules and standards set how people should be treated in the office and how different situations should be handled. The work culture at Sumup adheres to the cultural norms as outlined by Expertini.
The fundamental ethical values are:The average salary range for a Backend Engineer Global Bank Jobs Germany varies, but the pay scale is rated "Standard" in Berlin. Salary levels may vary depending on your industry, experience, and skills. It's essential to research and negotiate effectively. We advise reading the full job specification before proceeding with the application to understand the salary package.
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Before the Interview:To prepare for your Backend Engineer Global Bank interview at Sumup, research the company, understand the job requirements, and practice common interview questions.
Highlight your leadership skills, achievements, and strategic thinking abilities. Be prepared to discuss your experience with HR, including your approach to meeting targets as a team player. Additionally, review the Sumup's products or services and be prepared to discuss how you can contribute to their success.
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