Senior Backend Engineer - Cards

• Own and lead the end-to-end delivery of backend services within the Cards EU domain, including observability, testing, and production support
• Contribute to the technical roadmap by participating in architectural discussions and proposing solutions for complex, distributed systems challenges
• Raise well-scoped pull requests, conduct thorough code reviews, and help maintain high standards of code quality and test coverage across the team
• Collaborate closely with engineers in adjacent squads and with the product manager to shape and refine the squad backlog
• Participate in incident reviews and the on-call rotation, taking accountability for the reliability of the services you build
• Apply and champion AI tooling to accelerate engineering workflows, and help raise the team's overall AI literacy

Do you have experience in Relational databases?, * Solid, hands-on experience delivering production-ready backend services end-to-end, including testing, monitoring, and maintenance, on a modern cloud-native stack

• Production experience with Kotlin and interest in working with a number of other languages (Java, Golang and Elixir)
• Solid understanding of distributed systems, API design, data modelling, and working with relational databases
• Hands on experience in containerisation, orchestration, and CI/CD practices
• Ability to take an ambiguous product problem, define the technical approach, and lead it through to implementation with minimal guidance
• Comfort working across teams and communicating clearly in written and spoken English in a professional setting
• Genuine curiosity about the product domain - comfortable applying a backend lens during feature refinement and thinking beyond the code to understand how your work shapes the user experience

Pulled from the full job description

• Referral program
• Sabbatical, * Opportunity to work with SumUppers globally on large-scale fintech products used by millions of businesses worldwide, from our Berlin office. This involves an 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