Be empowered to do more that matters.

At SumUp, we're on a mission to empower small businesses across the globe by providing a vast set of simple and affordable business tools to help them start, run, and grow their businesses. Today, over 4 million businesses in 36 markets rely on SumUp as their financial partner to manage payments, finance and customer relationships.

You’ll join the Sell Online Tribe, the group shaping how merchants bring their businesses to life online. We design and build tools that help millions of entrepreneurs, from barbers to bakers, sell their products and services anywhere. Our focus is on Online Store and Bookings, two products at the heart of SumUp’s ecosystem. Together, they give merchants the power to manage appointments, showcase their offerings, and get paid—all from their phones.

We’re a cross-functional team of Product Managers, Designers, and Engineers who move fast, collaborate openly, and care deeply about crafting beautiful, performant mobile experiences. As part of this team, you’ll help us expand into new verticals, close the gap between web and mobile, and make digital selling effortless for small businesses everywhere.

• Build and scale new features for the Bookings and Online Store Android apps using Kotlin and Jetpack Compose
• Review and improve existing code to ensure performance, maintainability, and testability
• Collaborate with cross-functional teams (PMs, Designers, QA, and fellow Engineers) to deliver quality features on time
• Take part in code reviews, contribute to CI/CD improvements, and maintain technical standards
• Help close feature gaps with our web platform to achieve mobile parity for small merchants

• You have 5+ years of professional experience in Android development
• You’re fluent in Kotlin and familiar with MVVM/MVI architectures, Dependency Injection, and Modularization
• You write clean, testable, and maintainable code and understand what to test and why
• You’re proactive, collaborative, and comfortable working across multiple squads when priorities shift
• You’re fluent in English, both written and spoken, and communicate clearly
• You care deeply about creating products that deliver real value to small merchants

• 🌎 Opportunity to work , from our vibrant Warsaw office with inspiring art-filled lounges and a skyline terrace in the Mennica Legacy Tower. 
• 🌈 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 
• 🚀 Enrolment onto our VSOP program: you will own a stake in SumUp’s future success 
• 🚴 Fitness support: work out on-site at our gym or explore the city using the Multisport Card, subsidised by SumUp for access to sports facilities across Warsaw 
• 🩺 Commitment to well-being: access health insurance coverage for you and your family, plus life insurance to further protect your peace of mind 
• 💰 PPK (Employee Capital Plan): grow your savings with joint contributions from SumUp and the State. 
• 🏖️ Generous time off: enjoy 26 days of paid leave plus public holidays and special leave days 🌴 Break4me: 1-month sabbatical after 3 years of service 
• 🔗 Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team

Job Application Tip

We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.