Software Engineer (Golang) - Online Payments

Stack

Responsibilities

• ▹Co-design and develop high-performance, secure backend services for the Online Payments Platform
• ▹Participate in API design and implementation for internal and external integrations
• ▹Deliver business value through backend decisions and active participation in product discussions
• ▹Ensure high code quality, comprehensive test coverage, and clear documentation
• ▹Optimize application performance and scalability through active monitoring and proactive solutions
• ▹Collaborate closely with software developers, QA, and DevOps engineers for smooth deployment, CI and support
• ▹Actively participate in code reviews

Requirements

• ▹Solid experience as a backend software engineer in any modern language (e.g. Go, Java, Python, Kotlin)
• ▹Experience with PostgreSQL/RDBMS and distributed, fault-tolerant systems
• ▹Genuine passion for clean, maintainable, and testable code
• ▹Interest in using AI as part of the development workflow
• ▹Good understanding of software architecture and application design

Nice to have

• ▹Experience with Docker and/or Kubernetes
• ▹Experience with Kafka or other messaging systems
• ▹Experience with Unix/Linux environments
• ▹DevOps practices (CI/CD)

Soft skills

What we offer

• ▹€2,000 annual learning & development budget for conferences or education
• ▹25 days of paid leave, increasing with tenure, plus paid vacation for special occasions
• ▹1-month sabbatical every 3 years
• ▹Health and life insurance
• ▹Co-sponsored Multisport card
• ▹Childbirth/adoption bonus and referral program
• ▹€100 monthly food vouchers and €40 flexible benefits

About the company

SumUp is a leading financial technology company founded in 2012, serving more than 4 million merchants in over 35 markets. It builds simple, easy-to-use financial solutions for small businesses, with diverse teams across Europe, South America and the United States.