Senior Software Engineer (Golang – Pricing Domain)

At SumUp, we create tools that help small businesses get paid easily, manage money confidently, and grow sustainably. Our mission is to empower merchants around the world, and at the heart of that mission is a robust, scalable Payments Platform developed in Sofia. We’re now expanding this platform with a new dedicated Pricing team – and we’re looking for Software Engineers (Mid & Senior) who want to build core services from the ground up and make a lasting impact across SumUp. About the team Pricing is an important part of any payments business. The Pricing team will build and own the services that determine how SumUp’s products and transactions are priced worldwide. This includes maintaining existing pricing tools and creating a future-ready pricing platform that enables precision, flexibility, and transparency. We’ll be a small, high-impact team with strong engineering ownership. You’ll help define how pricing logic is modeled, how it evolves, and how it's applied at scale for millions of transactions across our ecosystem. About the role As a ( Senior) Software Engineer in our Pricing team, you’ll help design, build, and maintain a scalable and compliant pricing platform for SumUp’s payment ecosystem. You’ll participate in architectural discussions, guide technical decisions, and deliver projects independently or in collaboration with your squad. Your work will directly shape how SumUp evolves its pricing capabilities and supports business growth. What you’ll do You’ll design, develop, and maintain scalable backend services for our pricing systems. You’ll develop backoffice tools for pricing management. You’ll write high-quality, maintainable, and scalable code that meets coding standards and best practices. You’ll provide comprehensive documentation and automated good test coverage, improve code quality You’ll collaborate with other software, QA and DevOps engineers to ensure smooth deployment, continuous integration, and support for the software that we deliver in production environments. You’ll actively participate in code reviews with other software engineers to improve code quality and maintainability. You’ll support technical discussions during requirements analysis and scope definition. You’ll participate in team retrospectives and document lessons learned. You’ll be great for this role if you have You have several years of programming experience, including in Golang You have experience with building and consuming RESTful APIs You’re familiar with Docker, AWS, Kubernetes (user, not admin experience) You have a DevOps mindset You have experience with SQL & NoSQL DBs. We’re working with Postgres and Kafka You understand fundamental system architecture, software design principles, data modeling, and API design You are have an open to feedback, collaborative approach to teamwork and excellent problem-solving skills You take pride in engineering and have a keen sense of ownership of the work that you do Why you should join SumUp You’ll play a key role in a high-impact team working on one of the most critical services at SumUp, while being part of a global scale-up of 3000+ people from 60+ countries, spread across 4 continents. Shape the future of SumUp’s pricing capabilities and business strategy. You’ll receive 25 days’ paid leave, increasing with tenure, and paid vacation for certain occasions. You’d enjoy a paid 1 month Sabbatical vacation every 3 years. You’ll receive an individual learning budget and can take 10 days paid educational leave to expand your skillset. You'll have access to hackathons. You'd enjoy other great benefits such as additional health and life insurance; funded therapy & coaching sessions with licensed psychotherapists; co-sponsored Multisport card; Child birth/adoption bonus; free shuttle buses from Joliot-Curie metro station; a long list of discounts; attractive referral programme; monthly budget for food vouchers (100 EUR) and flexible benefits (40 EUR) , and more. About SumUp Be empowered to d