Android Engineer - Engagement Mission

About the team:

The SuperApp & Web squad sits within the Engagement Mission under SumUp's Run & Grow tribe, and we're responsible for one of the most strategically important surfaces in SumUp's product ecosystem,  the merchant app home screen.

Our mission is simple but ambitious: make every SumUp merchant feel empowered, informed, and engaged every time they open the app. We own the home screen, tools section, and profile & settings across iOS, Android, and Web,  and we build with four core objectives in mind:

• Activate merchants so they start using SumUp products as early as possible, through a first-class onboarding and first-time user experience

• Cross-sell & upsell SumUp products to the right merchants at the right time, via smart promotional components

• Surface insights that help merchants manage and grow their businesses through home screen widgets

• Enable navigation to the most relevant screens of the app.

The squad is cross-functional and collaborative, made up of iOS, Android, and full-stack engineers, a senior backend engineer, a senior product manager, a senior designer, and an engineering manager. You'll be paired with a senior Android engineer who will support your onboarding and growth, giving you the space to develop your skills while contributing meaningfully from day one. 

What you’ll do:

• Build and maintain features of the Android SuperApp home screen, including the first-time user experience, home screen widgets, quick actions, customization, tools section, profile & settings, and promotional channels, with guidance from your senior peers

• Contribute to the Personas initiative, helping build a tailored and customizable home screen experience that reduces friction and surfaces relevant data for each merchant

• Support codebase modularization and refactoring efforts, learning how to write scalable, maintainable code in a real-world production environment

• Participate in the definition and refinement of team initiatives, asking good questions, sharing ideas, and growing your technical judgment over time

• Take part in code reviews as both a contributor and a reviewer, building good habits around clean code and engineering best practices

• Write clear technical documentation and gradually build confidence communicating with stakeholders across product, design, and engineering

• Embrace a culture of curiosity, ownership, and continuous learning, this is a place where growth is expected and supported

You’ll be great for this role if you:

• Are proficient in Kotlin and have hands-on experience with Jetpack Compose for building Android UIs

• Have a working knowledge of MVVM, MVP, or similar architectural patterns and understand the value of clean, well-structured code

• Experience working with large monorepos and building different flavors of Android apps

• Are comfortable working in evolving codebases and are eager to learn how to navigate complexity and contribute to refactoring efforts

• Have a genuine UI/UX sensibility,you care about building experiences that feel right, not just code that compiles

• Are a team player who has worked alongside engineers, product managers, and designers in a cross-functional environment

• Bring curiosity, adaptability, and a growth mindset, you ask questions, take initiative, and aren't afraid to say "I don't know yet, but I'll find out"

• Can communicate your ideas clearly in writing and are willing to build your technical documentation skills over time

Nice to have: 

• Experience with Firebase, Optimizely, or API design 

• Experience with Design Systems, motion, or accessibility on Android
  
  

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

🧑‍🔬 We take learning and experimentation seriously with Hack Days every second Friday, and entire global Hack Weeks.

🌈 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