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 Payment Engineer you will support the team with delivering payment features for our card readers and you will also help pass and maintain the payment certifications for our readers.

You will be expected to act as a payment Subject Matter Expert by providing expertise within the Hardware team, and other teams within the company.

As a Payment Engineer, you will be part of one of our small and highly skilled cross-functional teams and work together with Product Manager, Embedded Engineers, Backend Engineers, Certification Manager and UX/UI Engineer.

To be successful in this role you should be open to constantly learning about payments systems, be proactive when it comes to solving issues, and enjoy working autonomously.

What you’ll do:

• Develop high-quality and secure payment software for SumUp's payment terminal.
• Collaborate closely with the embedded engineering team to seamlessly integrate payment applications.
• Execute code and architecture reviews to ensure the quality of implemented solutions.
• Collaborate with your teammates to acquire payment and security certifications such as EMVCo, E2E, PCI PTS, etc.

You’ll be great for this role, if: 

• You’ve experience developing in C programming language 
• You’ve prior experience or knowledge in the field of payments, including EMV solutions, contact and contactless payments, or smart card technologies (e.g., NFC, ISO7816).
• You are familiar with payment certifications like EMVCo and E2E, or you have knowledge of payment security certifications such as PCI PTS.
• You have experience with embedded systems and developing low-level applications.

Nice to have:

• Experience working with embedded Linux/Unix platforms 

Why you should join SumUp 

• Opportunity to work with a truly global, multicultural team (we are 3200+ people from 80+ countries, spread across 4 continents).

• 28 days’ paid leave

• Competitive salary package and virtual stock option programme

• Learning & development budget for attending conferences and external training

• SumUp Corporate Pension Scheme

• Wellness benefits: in-house Yoga teacher, gym in the office, football & running teams, subsidized Urban Sports Club

• A lot of other cool benefits such as Bike leasing, Subsidised Public Transport Card, Language Learning platform/courses, Kita placement assistance, relocation assistance, 2x per week subsidised office lunches, and a brand new beautiful place to work in the heart of Berlin!

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.