backend engineer Golang for bank balance

SumUp provides simple and affordable business tools that help small businesses start, run, and grow. More than 4 million businesses across 36 markets rely on SumUp as their financial partner for payments, finance, and customer relationships.

• Build and evolve core banking services for ledger operations and transactions, transforming regional systems into a unified, scalable global platform
• Tackle distributed systems challenges and ensure services remain resilient under high transaction volumes
• Improve observability, add test coverage, refactor code, and introduce architectural patterns without disrupting live banking operations
• Contribute to architectural decisions and build ledger and transaction history systems from the ground up
• Collaborate with Risk, Treasury, Finance, and Infrastructure teams to support compliant and reliable global operations
• Own services from design through production, monitor their performance, and continuously improve software delivery

• Backend experience building reliable, high-volume services
• Proficiency in Golang and willingness to learn and work with other languages
• Ability to design systems, APIs, and data models and understand service interactions
• Ability to write maintainable, well-tested code and follow CI/CD best practices
• Experience building, deploying, and running services in cloud environments such as AWS using Docker and Kubernetes
• Eagerness to learn about relational databases that perform well under load and maintain data consistency
• Ability to collaborate across regions, communicate clearly, exchange feedback, and make technical decisions together
• Interest in building reliable financial services and banking
• Будет плюсом: Elixir, PostgreSQL performance tuning, complex queries, schema design, event streaming platforms such as Kafka, observability stacks such as Grafana and Honeycomb

• Compensation in Lithuania: 3,493 to 4,657 Euro Gross p/m for a Mid Level Engineer; 4,366 to 5,822 Euro Gross p/m for an Early Senior Engineer
• Offer may vary based on skills, experience, and hiring process outcome
• €2,000 Annual learning budget
• Virtual Stock Options
• 25 Days of paid leave plus special holidays
• Health insurance through Gjensidige and life and accidental coverage from Ergo
• Gym membership allowance
• Training, mentorship programs, SumUp University cohort, and yearly learning budget
• Hack Days every second Friday and global Hack Weeks
• One-month sabbatical after 3 years of service
• Referral bonus