Software Engineer Qt

  • SumUp
  • Berlin, Germany
  • Jul 28, 2017
Full time Developer

Job Description

About us

We are the leading mobile point-of-sale (mPOS) company in Europe. We started out 5 years ago and built our payment service from scratch to shake up the industry and wake up the entrepreneur within anyone. We created a unique device that with the smartphone that’s in your pocket, allows small merchants to accept card payments anywhere. Whether our merchants are brewing coffee or fixing cars, we want to make technology that everyone knows how to use. So our merchants can get on with what they do best. From our paperless onboarding to taking the first payment, we make it easy. Traditional offerings leave out small businesses, we don’t. We are open and honest about our pricing and have no hidden fees.

Today, hundreds of thousands of small businesses in 16 countries around the world rely on SumUp to get paid. In addition to our original hardware, mobile and web apps we have gone on to develop a suite of APIs and SDKs to integrate SumUp payment into other apps and services.

Why work for us?

We do things differently. We build our own payment solution end-to-end so that we can always offer the best value & service. We know how vital payment is to small business, so we use our technology to solve their problems. We believe in open and transparent communication, not strict rules and hierarchies. If you’re looking for the chance to innovate, and disrupt the payment industry – join us. We are a team of hardworking, talented people with one goal: to build a better way to get paid. We’ve got some huge challenges ahead of us, and we need smart, creative people to help us tackle them. If you think you’ve got what it takes - join us.


As part of SumUp, you will develop state of the art payment terminals and terminal accessories by working closely with our hardware/software/mechanical team, marketing, and manufacturing partners, to architect, beautifully design, and certify for payment and security specifications. In addition, you will contribute to the unique SumUp culture that is all about the people that share the same vision.


Design the graphic user interface of SumUp’s next generation product; Define specification, implementation and testing of the GUI on an embedded platform; Technical analysis, verification and validation of the software; Execute of code and architecture reviews to ensure the quality of implemented solutions; Bring your experience to develop software on embedded operation systems and bare-metal systems.


Minimum 5 years of professional experience in software development; Enthusiastic and experienced on Qt and C/C++; Experience with touch display software development; Ability to thrive in a dynamic work environment; Passionate and excited to tackle new challenges everyday; You have successfully completed your studies in computer science or possess an equivalent qualification.


  • Flat hierarchies and the opportunity to have an impact, irrespective of your job description;
  • A convenient location in the heart of Mitte at U-Bahn Oranienburger Tor;
  • Our office has a strong sense of community; we get together regularly for brunches, cocktail nights, soccer, and yoga;
  • Our team comes from 24 different countries creating a fun, international environment;
  • All the startup swag you expect: kicker table, table tennis, beer in the fridge, German lessons, and more!