Embedded Software Engineer

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!

About the role

As an Embedded Engineer you will be part of the Hardware team and you’ll be working on one of our payment devices which we build in-house. You will be part of one of our small and highly skilled cross-functional teams and work together with Product Managers, Embedded Test Engineers, Backend Engineers, Application and GUI Engineers, and more.

As an Embedded Engineer at SumUp you will design specification and implementation of embedded software for our payment devices. You will deal with a variety of topics in the areas of bluetooth connectivity, payments, security, etc.

To be successful in this role you should be able to follow good software engineering principles, write clean code and tests, and be open to constantly learning and improving your craft. It will be expected from you to not only ship features, but also to contribute to the decision making process.You should be a software engineer with a product mindset who can fully own the features you are working on.

This role is on-site in Berlin, where face-to-face interactions spark innovation and teamwork.

What you’ll do:

• Design specification and implementation of embedded software in the field of payment processing terminals
• Technical analysis, verification and validation of the software and hardware components
• Execution of code and architecture reviews to ensure the quality of implemented solutions. You bring your experience to develop software on embedded operating systems and bare-metal systems
• Perform acceptance, functional, regression and exploratory testing on the SumUp platform
• Read remote system logs

You’ll be great for this role if:

• You have a good understanding of embedded systems.
• You have a solid knowledge of the C programming language.
• You have experience with Embedded Linux OS OR RTOS (Zephyr) OR Bare Metal
• You have knowledge of peripherals and communication buses like SPI, I2C, USB, SDIO, etc.
• You have knowledge in wireless technologies, e.g. NFC, Bluetooth, WiFi, 3G/4G.
• You have strong communication skills.
• You are hungry to learn.

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!