Senior QA Engineer
Sumup
Posted: February 20, 2026
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Quick Summary
Join our team as a Senior QA Engineer to design and build tools for merchants to manage online store and bookings, focusing on Online Store and Bookings products.
Required Skills
Job Description
About the team
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 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.
About the role
As a Senior QA Engineer within the Sell Online Tribe, you will be the guardian of quality for products that empower millions of entrepreneurs. You will play a pivotal role in our ecosystems, ensuring a seamless transition for merchants moving between web and mobile platforms. This is a high-impact role designed for a QA expert, you’ll be part of a robust, cross-functional team bridging the gap between sophisticated automation and high-touch manual exploration.
What you’ll do
• Build, maintain, and scale web and mobile test automation suites for the Bookings product and related areas
• Perform manual testing for new features and regression testing for both web and weekly mobile releases
• Analyze requirements to design comprehensive test cases and identify potential edge cases
• Conduct code reviews and collaborate with engineers to ensure bug resolution and high-quality deployments
• Utilize AI tools to optimize and accelerate your automation workflows
• Shift between product squads flexibly based on tribe workloads and specific quarterly needs
• Maintain and improve CI pipelines to ensure consistent automation coverage
You’ll thrive in this role if
• You have at least 5 years of QA experience with a strong focus on automation
• You possess extensive practical knowledge of Robot Framework
• You are proficient in AppiumLibrary for cross-platform mobile automation (iOS/Android)
• You have hands-on experience with Browser Library (Playwright-based) for web automation
• You are skilled in manual test case design, exploratory testing, and mobile debugging with ADB/Xcode
• You use Git for version control and leverage AI to enhance your automation processes
• You communicate clearly in English and can articulate complex topics to various stakeholders
• You are a flexible team player with a "can-do" attitude and a genuine interest in delivering value to merchants
Nice to have:
• You have experience with CI/CD tools like GitLab CI, GitHub Actions, or Jenkins
• You can develop custom libraries using Python
• You are familiar with API testing and mobile device clouds like BrowserStack or Sauce Labs
• You have a product mindset and an interest in how digital products are built and scaled
Why You Should Join SumUp (Warsaw) 🇵🇱
🌎 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.
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.