SumUp is HIRING A

Senior QA Engineer

📍 Germany 🌐 On-Site ⏰ Full Time
POSTED January 22, 2026

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Berlin, Germany ¡ QA

About the role

mobile testing tools

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

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

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!

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.

Please mention you found this job on TestDev Jobs. It helps us get more people to hire on our site. Thanks and good luck!