Senior Backend Engineer (Golang)

Навыки

• ArgoCD / Flux
• AWS
• CI/CD
• Docker
• Elixir
• GitHub
• GitHub Actions

О компании и продукте

• 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 .

Задачи

• 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 and 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
• You’ll be great for this role if
• Solid programming experience in Golang and are interested in working with additional languages such as Java, Kotlin and Elixir
• You feel comfortable working with SQL and NoSQL databases
• You are experienced with CI/CD tools like GitHub Actions or ArgoCD
• You take pride in your work, have a keen sense of ownership, and are dedicated to writing clear, maintainable, and testable code
• Any of the following would be considered a plus
• Experience with monitoring tools - Prometheus, Grafana, Honeycomb
• Experience in the fintech industry
• Why you should join SumUp
• We’re a truly global team of 3200+ skilled professionals from 92+ countries, spread across 4 continents. Join the team from our Vilnius office
• 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
• Time off: 25 days of paid leave, plus special holidays

Требования

• Our tech stack includes Go, AWS, Kafka, PostgreSQL, 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
• SumUp’s engineering culture is built around ownership
• We follow a “build it, run it, improve it” model, with strong observability and a focus on learning
• Engineers have clear scope and autonomy, with decisions documented, reviewed, and made collaboratively
• The Vilnius team is a core part of the Global Bank domain
• We own production systems, shape technical direction, and work closely with colleagues across SumUp’s global offices on critical merchant banking capabilities
• Join our Vilnius Team today ( Vilnius office )
• You have advanced understanding of developing and maintaining distributed and event-driven systems
• You have solid experience with event streaming platforms and messaging brokers such as Kafka
• You have experience with modern cloud technologies like AWS, and containerization tools such as Docker and Kubernetes

Условия

• 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

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