About this role
About the role
As an QA Engineer in SumUp's Hardware Tribe, you will be part of one of our small and highly skilled cross-functional teams and work together with Product Managers, iOS Engineers, Android Engineers, and more. You will build sustainable solutions for testing and be accountable for the mobile testing tools that the QA team are building. Lastly, you will also be a critical decision maker in the design of hardware test infrastructures to run HIL tests and provide crucial support to software releases.
You should be an engineer with a product mindset who can fully own the features you are working on and remain flexible with changing priorities.
The role is based on-site in our office in Berlin. We believe in the power of face-to-face conversations that happen organically when working next to one another.
About the team
You have probably used our card readers to buy a cappuccino or pay your hairdresser already. In Hardware, we are passionate about creating these beautifully designed card payment devices and accessories that enable our merchants to start, run, and grow their own businesses. In doing so, we deal with a diverse range of engineering topics - industrial and electronic design, embedded systems, all the way to mobile apps and backend services.
We believe in open communication and constant learning over strict rules. If you're looking for the chance to innovate and help millions of small independent merchants succeed - join us!
What you’ll do
- Ensure that all new code of developers has the right quality and is compliant with selected best practices (in collaboration with the CL)
- Build and maintain test infrastructure for HIL tests
- Ensure that multiple types of tests cover the main features (especially UI and end to end tests)
- Ensure that new releases are delivered timely with the right quality
- Evangelize a strong quality mindset within the Hardware tribe
You'll be great for this position if:
- Experience with Object Oriented Programming (Java, Kotlin, Python)
- Knowledge with REST APIs
- Strong command of QA automation tools like Selenium, Appium, or Postman
- Expertise in testing and continuous integration strategies
- Experience of manual testing, writing test cases and campaign management
Why you should join SumUp
- The opportunity to work on large scale fintech products used by millions of small businesses around the world
- A dedicated annual Learning & Development budget for attending conferences and/or advancing your career through further education
- Enrollment onto our virtual stock ownership program - you will own a stake in SumUp’s future success
- A corporate pension scheme
- 28 days paid leave + 1 for birthday
- You’ll attend global offsites and/or hackathons.
- You'd enjoy other great benefits such as Urban Sports Club subsidy, Kita placement assistance, subsidized office lunches and other location-tailored benefits, Babbel language platform subscription and more!
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.
Other facts
About SumUp
SumUp is a leading global fintech company committed to levelling the playing field for small businesses. Founded in 2012, we’re the trusted partner of over 4 million merchants in 37 markets, providing simple and affordable tools that help them manage payments, finance, and customer relationships.
Our vision is a world where everyone can build a thriving business. Guided by this, we champion small business ownership by creating accessible solutions that empower entrepreneurs to grow and succeed.
Our diverse team of over 3,000 SumUppers — representing more than 90 nationalities across 20 offices worldwide — is at the heart of our success. Beyond business, we donate 1% of the net revenue generated by Solo devices to environmental causes and support educational and entrepreneurial initiatives around the world.
Recognised as a Top Global Employer for inclusion by the Stonewall Workplace Equality Index in 2022 and 2023, and awarded Fintech Diversity Initiative of the Year at the Irish National Fintech Awards in 2025, SumUp continues to build an inclusive, supportive, and purpose-driven workplace where everyone belongs.
What you'll do
- Ensure that all new code from developers meets quality standards and is compliant with best practices. Build and maintain test infrastructure for HIL tests and ensure timely delivery of new releases with the right quality.
Ready to join SumUp?
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