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!
Curious to know how it feels working in the Hardware team? Check this out!
About the role
As a (Senior) Backend Engineer, you will support the team with delivering new features for our payment devices. You will also be maintaining existing features such as transaction flows for different payment methods, firmware updates, and other integrations with our internal services. You will help in maintaining our terminal backend, which includes assets management, card payment processing, hardware configuration, logging and monitoring.
As a (Senior) Backend Engineer, you will be part of one of our small and highly skilled cross-functional teams and work together with Product Managers, Mobile Engineers (iOS and Android), Product Designers, Embedded Engineers, and more.
To be successful in this role you should be open to constantly learning and improving your craft. You enjoy collaboration with others, particularly in a cross-functional setup and you’re also open to contribute to technical discussions and express your opinions openly.
What you’ll do
Our tech stack includes: Elixir, OTP, Postgres, Redis, Docker
You’ll be great for this role if
Why You Should Join SumUp
Career Growth: Join a truly global team and work on large-scale fintech products used by millions of businesses worldwide, with ample opportunities for professional development and upward mobility,
Learning & Development: We offer an annual Learning & Development budget of R$ 10,000, which you can use for conferences, certifications, and further education to enhance your skills,
Extended Time Off: After 3 years at SumUp, you’ll receive an additional 30 days off through our Break4Me program, on top of your regular vacation period,
English Classes: Improve your language skills with our English classes, provided through The English Academy,
Equity: Participate in SumUp’s virtual stock ownership program, gaining a stake in our future success,
Global Experience: Join our global off-sites, hackathons, and events, and collaborate with a diverse team of 3,000+ people from over 90 countries,
Referral Bonus: Earn a bonus when you help us grow by successfully referring top talent to our team,
Comprehensive Benefits: We care deeply about our team’s well-being and offer a range of benefits, including health plans, meal vouchers (VR), Zenclub, Gympass, life insurance, a pension plan, childcare allowance, 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.
We are SumUp At SumUp, we are driven to empower small businesses across the globe by de-hassling their lives and helping them to succeed. Our vision as a global FinTech company is to build the first-ever global card acceptance brand, and we are well on our way as small businesses in over 31 countries around the world rely on SumUp to get paid. To get there we are putting together an awesome team that is committed to one another and to our merchants. You could be our missing link! Help us bring card acceptance to the masses! Our boldness, startup mindset, empathy and love for product foster a creative environment for our employees. We value an entrepreneurial spirit and seek to build lasting relationships among our employees. We know that a diverse and inclusive workforce keeps us competitive and provides opportunities for all. We believe that together we can help small businesses grow.
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Understand the required skills and qualifications, anticipate the questions you may be asked, and study well-prepared answers using our sample responses.
Backend Engineer Q&A's