Software Engineer, Java/Kotlin - Payment Processing(Fintech)

Requirements

• Proven experience designing and delivering software systems in highly complex business domains at global scale.
• Deep backend engineering expertise with a strong preference for distributed systems.
• Hands-on mastery of Java, Kotlin, Spring / Spring Boot, Hibernate, and JUnit.
• A strong engineering ownership mindset with a passion for automation, CI/CD, and reliability.
• Exceptional problem-solving skills, curiosity, and a creative, outside-the-box approach to complex challenges.
• A high bar for quality, performance, and craftsmanship — with a relentless attention to detail.

What You'll Be Doing

• Design, build, and deliver highly scalable software systems operating in complex, global business environments, used across more than 70 countries.
• Lead backend engineering efforts with a strong focus on distributed systems, leveraging Java, Kotlin, and modern frameworks such as Spring / Spring Boot, Hibernate, and JUnit.
• Own services end-to-end by embracing a true “you build it, you run it” mindset, with deep involvement in infrastructure automation and continuous deployment.
• Define and execute highly effective testing strategies by applying unit, integration, contract, and end-to-end testing at scale.
• Build secure, resilient systems by applying secure coding best practices throughout the development lifecycle.
• Rapidly diagnose and resolve complex production issues across multi-region, distributed microservices platforms.

Nice to Haves

• No specific nice to haves listed

Perks and Benefits

• Make the most of our hybrid working model and join the team for face-to-face connection and collaboration in our beautiful Berlin campus 2 days a week.
• We offer 27 days holiday with an extra day on 2nd and 3rd year of service.
• We will support you in developing yourself and your career growth opportunities: 1.000 € Educational Budget, Language Courses, Parental Support and access to the Udemy Business platform to explore a variety of online courses.
• Get moving and release those wonderful, mind-boosting endorphins: Health Checkups, Meditation, Gym & Bicycle Subsidy.
• Employee Share Purchase Plan, Sabbatical Bank, Public Transportation Ticket Discount, Life & Accident Insurance, Corporate Pension Plan.
• Digital Meal Vouchers, Food Vouchers, Corporate Discounts Courses.