About the Position

(Senior) Backend Engineer (Golang) - Bank

Vilnius, Lithuania

In the Global Bank tribe, we are building the infrastructure and core services needed to provide our merchants with a digital bank account that empowers them to be successful at doing what they love. Our goal is to become the most popular banking partner for small merchants globally by offering a high-quality banking experience tailored to their needs-effortless, simple, and affordable.

Joining the Global Bank tribe means playing a key role in helping us build SumUp's digital bank. You’ll collaborate with a global, autonomous, cross-functional team that refines an aspect of our product from concept to execution. Work alongside colleagues from 32 nationalities across Cologne, Berlin, São Paulo, Sofia, London, and Vilnius, united by a shared commitment to taking ownership, working with purpose, and helping small businesses thrive.

Responsibilities

• Collaborate with a global team to design and build a unified global banking platform. This includes high-level APIs for multiple regions and local implementations, ensuring high availability and observability
• Be part of the transformation team that is transforming monolithic services into decoupled, highly scalable, region-agnostic, unified global bank services
• Design, implement, and iteratively develop highly available backend services, while continuously evaluating and implementing new methods to ensure the high reliability of transfer systems
• Maintain and improve core services utilizing a modern, cloud-native technology stack (AWS, K8s), with microservices written in Golang, Kotlin, Java, and Elixir
• Improve test coverage for existing services and drive the end-to-end delivery of changes, including testing, observability, and monitoring
• Shape and continuously improve our engineering culture by sharing ideas, refining best practices, exploring innovative solutions, and contributing to comprehensive documentation and tool selection

Requirements

• Solid programming experience in Golang and are interested in working with additional languages such as Java, Kotlin, and Elixir
• Advanced understanding of developing and maintaining distributed and event-driven systems
• Solid experience with event streaming platforms and messaging brokers such as Kafka
• Experience with modern cloud technologies like AWS, and containerization tools such as Docker and Kubernetes
• Comfortable working with SQL and NoSQL databases
• Experienced with CI/CD tools like GitHub Actions or ArgoCD
• Take pride in your work, have a keen sense of ownership, and are dedicated to writing clear, maintainable, and testable code

Nice to Have

• Experience with monitoring tools - Prometheus, Grafana, Honeycomb
• Experience in the fintech industry

We Offer

• Competitive salary: From 4,366 to 7,280 Euro Gross per month + 2,000 EUR annual learning budget + Virtual Stock Options
• Global team: Join a truly global team of 3,000+ skilled professionals from over 90 nationalities
• 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
• Time off: 25 days of paid leave, plus special holidays
• Peace of mind: Health insurance through Gjensidige and life & accidental coverage from Ergo
• Stay active: Gym membership allowance to help you keep fit on your terms
• Career growth and learning opportunities: We invest in your development through regular training, mentorship programs, SumUp University cohort, and a yearly learning budget (2,000 EUR)
• Hack Days and Hack Weeks: We take learning and experimentation seriously with Hack Days every second Friday, and entire global Hack Weeks
• Break4me: 1-month sabbatical after 3 years of service
• Referral Bonus: Earn additional rewards by referring talented individuals to join the SumUp team

About the Company

At SumUp, we’re on a mission to empower small businesses around the world with simple, affordable tools to help them start, run, and grow. More than 4 million merchants across 37 markets trust us as their financial partner - and we’re just getting started.

We’re a global team of 3,000+ people from over 90 nationalities, united by curiosity, collaboration, and care. Our core values and culture shape everything we do, fostering inclusion, learning, and belonging.

SumUp is proud to be an Equal Employment Opportunity employer, committed to building a safe, respectful, and diverse workplace where everyone can thrive.

👉 Explore more about our culture on our careers site, or follow us on LinkedIn and Instagram.

SumUp is proud to be an Equal Employment Opportunity employer, actively seeking and embracing diversity in our workforce. We don't make hiring or employment decisions based on 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. Our commitment extends beyond recruitment to creating a safe and respectful workplace where harassment of any form is strictly prohibited.