Senior Payment Application Engineer

at  SumUp Services GmbH

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!

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.
As a prior experience in payment is a must-have for this role, we encourage applications from any background ( example: embedded QA testing, backend development, etc.. )

What you’ll do:

• Design specification and implementation of embedded software in the field of payment processing terminals
• Execute code and architecture reviews to ensure the quality of implemented solutions. You’ll bring your experience to develop payment and security software
• Perform acceptance, functional, regression and exploratory testing on the SumUp platform
• Drive payment terminals certifications

You’ll be great for this role, if:

• You have prior experience working on EMV solutions, contact and contactless payments or you have experience in smart card technologies (e.g. NFC, ISO7816)
• You have knowledge of payment certifications ( EMVCo, Schemes,E2E Acquirers )
• You have knowledge of payment security certifications ( PCI )
• You have experience developing in C programming language

Nice to have:

• Have experience with embedded systems, developing low-level applications
• Experience working with embedded Linux/Unix platforms

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
• 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!