(Senior/Mid) Software Engineer, Golang - Payments Platform
SumUpSofia, Sofia-City, Bulgaria
Posted April 14, 2026
Full Time
About the Company
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.
Job Description
SumUp enables businesses to get paid easily, process orders quickly, sell online instantly and manage their money more efficiently. We create the tools businesses need to make their business and their customer experience thrive.
Requirements
- Design and evolve systems that process millions of transactions reliably and at scale
- Build and maintain backend services in a microservices architecture
- Contribute to API design for internal services and external integrations
- Write clean, maintainable, and scalable code with strong test coverage
- Participate in architectural discussions and drive technical decisions
- Collaborate closely with engineers, QA, and DevOps to deliver production-ready systems
- Continuously improve engineering practices, including leveraging AI to iterate faster
Benefits
- 25 days of paid leave (increasing with tenure), plus paid vacations for special occasions and a 1-month sabbatical every 3 years.
- Extra perks like health and life insurance, co-sponsored Multisport cards, childbirth/adoption bonuses, discounts, a referral program, 100 EUR monthly food vouchers, 40 EUR flexible benefits, and more.
- Access a €2,000 annual L&D budget to attend conferences or advance your career through education.