Software Engineer - Back-End (Elixir, Kotlin, Ruby)

About the Team

We’re looking for a versatile Software Engineer to support us in launching and scaling SumUp in new markets. Our team is responsible for defining the strategy and delivering products and services to those targeted markets. We leverage products built within SumUp, crafting new features, making adjustments, and localizing them to provide merchants with the best experience given their local context – from their onboarding to making their first sale and getting paid out.

As part of this cross-functional squad within Global Expansion, you will collaborate with other teams and different codebases to deliver the functionalities required in the new countries. We believe that small merchants all over the world deserve to have a key partner to help them grow their business, and our squad enables SumUp to be there for them. You will also build tools to enable faster market launches and help other teams to build solutions they can scale in new markets.

What You’ll Do

• Design, build, and maintain back-end services between distributed systems.
• Actively participate in code reviews with other software engineers.
• Participate in product development, collaborating with engineers in different tech stacks to deliver business value.
• Maintain and extend the core payments and internal tooling systems, responsible for the transaction flow for different payment methods and help agents to provide better support.
• Participate in API design and implementation for both internal APIs and those exposed to our third-party integrators.
• Foster a culture of pair programming and ensure excellent monitoring and alerting for our products.

You’ll Be a Great Fit for This Role If You Have

• A good understanding of software architecture and application design, along with experience as a generalist who enjoys exploring and learning a wide range of technologies.
• Full-stack experience with a focus on backend development.
• Experience writing production-level applications in at least one of these technologies: Golang, Ruby on Rails, Kotlin, or Elixir.
• Experience with Pair or Mob programming and enjoy working in a collaborative environment.
• Experience with distributed and fault-tolerant systems.
• A passion for writing clean, maintainable, and testable code.

Why You Should Join SumUp

• 🌍 Opportunity to work with SumUppers globally on large-scale fintech products used by millions of businesses worldwide, from our Berlin office. This involves an office-first setup.
• 🌈 Commitment to Diversity and Inclusion: Be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced.
• 📚 A dedicated annual L&D budget of €2,000 for attending conferences and/or advancing your career through further education.
• 🚀 Enrolment onto our VSOP program: You will own a stake in SumUp’s future success.
• 💶 A corporate pension scheme where we match up to 20% of your contributions.
• 🔄 30 Days Sabbatical: Enjoy the unique opportunity to take a well-deserved break with our 30 days sabbatical benefit after completing 3 years of employment with SumUp.
• 🔗 Referral Bonus: Earn additional rewards by referring talented individuals to join the SumUp team.
• 🚵🏾‍♂️ Numerous other benefits such as Urban Sports Club subsidy, Kita placement assistance, relocation assistance, subsidised office lunches.

SumUp is an Equal Employment Opportunity employer that proudly pursues and hires a diverse workforce. SumUp does not make hiring or employment decisions on the basis of race, colour, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age or any other basis protected by applicable laws or prohibited by Company policy. SumUp also strives for a healthy and safe workplace and strictly prohibits harassment of any kind.