Senior Hardware Engineer
Confirmed on the employer's own hiring board on Oct 25, 2026. First seen by Alion on Oct 22, 2026. SumUp scores B on the Alion truth index.
Team description
You've probably paid for a coffee or tapped your card at a hairdresser using one of our card readers already. Our Hardware team designs and builds the beautifully engineered payment devices and accessories that let millions of small merchants start, run and grow their businesses, spanning industrial design, electronics, embedded systems, mobile apps and backend services. As Senior Hardware Engineer, you'll shape the electrical architecture behind our next generation of products, including new designs built on modern Android platforms, giving you real influence over how SumUp's hardware portfolio takes shape from the very first schematic.
What you'll do
Design and review electrical schematics, defining hardware architectures for new products
Partner with Mechanical Engineering, Android and embedded software, Product and Supply Chain teams to align platform choices, interfaces and product integration
Own hardware delivery from prototyping and bring up through validation and mass production readiness, debugging designs and reducing technical risk along the way
Explore new design approaches and prototype untested concepts to work through tough technical challenges
Lead technical workstreams and design reviews, coordinate implementation across cross functional teams, and mentor colleagues to share hardware engineering knowledge
You'll be great for this role if…
Significant experience in electrical engineering, gained in consumer electronics or hardware product development.
Strong knowledge across several of the following areas: RF (cellular, NFC, Wi-Fi/BT), power design, digital buses and protocols, battery technology or analogue design.
Track record of bringing multiple hardware products through to mass production.
Proficiency in a mainstream CAD system such as Altium or Cadence/Allegro.
Ability to create hardware architectures for modern Android based products and work closely with Android or embedded software teams on platform integration.
Nice to have:
Bachelor's degree in Electrical Engineering, with a Master's a bonus.
Basic coding skills for simple firmware validation, with Android device bring up experience a plus.
We know candidates often feel they need to tick every box before applying. That's just a guide. If some of the above sounds like room to grow rather than something you already do, we'd still love to hear from you.
Why you should join SumUp
Opportunity to work with SumUppers globally on large-scale fintech products used by millions of businesses worldwide, from our Berlin office. This involves an office-first setup
Commitment to Diversity and Inclusion: be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced
Enrolment onto our Virtual Stock Option programme: you will own a stake in SumUp's future success
A dedicated annual L&D budget of €2000 for your individual development, which can be used to attend conferences and/or advance your career through further education
A corporate pension scheme where we match up to 20% of your contributions
Generous time off: enjoy 28 days of paid leave plus public holidays and special leave days
Numerous other benefits such as Urban Sports Club subsidy, Kita placement assistance, subsidised office lunches
Break4me: 1-month sabbatical after 3 years of service
Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team
About SumUp
Be empowered to do more that matters.
At SumUp, we're on a mission to empower small businesses across the globe by providing simple and affordable tools that allow them to thrive. Today, over 4 million businesses in 39 markets rely on SumUp as their financial partner to manage payments, finance and customer relationships.
Our commitment to small businesses is reflected in our diverse team of over 4,000 SumUppers from over 90 nationalities, united by global collaboration and an innovative mindset. Our core values lay the foundation for who we are and what we stand for, shaping our work culture and driving our success. We foster inclusivity and a continuous learning culture, providing a safe space for personal and professional growth. Our differences make us unique and strong as we strive to create an environment where everyone belongs and feels supported, no matter how they identify.
SumUp is proud to be an Equal Employment Opportunity employer, actively seeking and embracing diversity in our workforce. We don't make hiring or employment decisions based on race, colour, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age or any other basis protected by applicable laws or prohibited by company policy. Our commitment extends beyond recruitment to creating a safe and respectful workplace where harassment of any form is strictly prohibited. Discover more about our culture and opportunities on our careers website, and follow our journey on LinkedIn, Instagram, and TikTok.
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.