Information on COVID-19 for our merchants. Read More.


Back to all jobs

Senior Android Developer - Platform Tribe

Cologne · Mobile

The Mobile Platform team’s mission is to build tools and provide frameworks for SumUp’s product squads, allowing them to deliver multiple products to millions of small merchants around the world. Our work includes providing shared infrastructure in the form of session state handling, feature flags and identity services; introducing and maintaining shared services such as push notifications; governing the ways in which multiple product teams can integrate and launch their features; and evolving the design system defining how various products are built. As part of this team, you’ll collaborate with colleagues from various SumUp offices, have a truly global impact and gain a unique insight into how a widely-used financial product evolves.

We’re looking for a Senior Android Developer to join the Mobile Platform team in our Cologne office.

What you’ll do 

  • Help build services that empower our squads to build delightful mobile experiences 

  • Write high quality, testable code, used by millions of people daily

  • Collaborate with other engineers, designers and product managers to develop simple and delightful solutions for our teams

  • Mentor other engineers in engineering principles, design, and implementation

You’ll be great for this position if

  • You have deep knowledge of Android development in Java and Kotlin

  • You’re proficient with architectural patterns like MVP and MVVM

  • You have a strong understanding of interactive application development paradigm under Android, memory management, network programming, concurrency and multithreading

  • You have good knowledge of the latest framework and techniques

  • You have an excellent understanding of the full mobile development life cycle, and working knowledge of the general mobile landscape, architectures, trends, and emerging technologies

  • You have experience of testing frameworks, including Espresso

  • You have knowledge of Dependency Injection (e.g. Dagger, Toothpick)

  • You have experience in Android-specific application development and publishing Android apps in the Play Store

  • You strive for clean code, but also know how to make your "shortcuts" easy to delete in a crunch

  • You have excellent communication skills and are excited by technology

Why you should join SumUp

  • You’ll work in an exciting and complex domain, affecting the everyday life of millions of merchants

  • You’ll collaborate with other talented people in designing and implementing solutions that delight and empower our merchants to pursue their passions

  • We’re a truly global team of 2000+ people from 60+ countries, spread across 3 continents

  • We get together regularly for breakfasts, team events, office parties and sports

About SumUp

We believe in the everyday hero. Those who have the courage to follow their passion and who have the strength and determination to realise their dreams.

Small business owners are at the heart of all we do, so we're creating powerful, easy-to-use financial solutions to help them run their businesses. With a founder’s mentality and a 'team-first’ attitude, our diverse teams across Europe, South America, and the United States work together to ensure that small business owners can be successful doing what they love.  

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.