At SumUp, we're dedicated to building innovative solutions that empower small merchants to start, run, and scale their businesses. Our diverse range of products integrates seamlessly into our users' lives, pushing the boundaries of financial technology. From concept to deployment, you'll play a pivotal role in shaping the future of our offerings.

As an iOS Engineer in the Activation squad within our Growth Tribe, you'll be instrumental in developing the systems that help our merchants get up and running quickly, discover, and fully leverage SumUp's suite of products. Your work will have a direct and meaningful impact on the lives of our merchants. You'll achieve this while working with state-of-the-art technologies in a collaborative and dynamic environment.

• You have hands-on experience developing mobile applications of similar complexity to SumUp’s Super App
• You are proficient in Swift
• You are well-versed in architectural design patterns such as MVVM and MVP, with a proven ability to create modularized and scalable app architectures
• You are passionate about user experience, with a keen eye for detail and a commitment to delivering high-quality, user-centric applications
• You take pride in writing clean, maintainable code and have a pragmatic approach when necessary
• You enjoy sharing knowledge and mentoring other engineers, contributing to a collaborative and supportive team environment
• You are an excellent communicator and technical writer, capable of articulating complex ideas clearly and concisely
• You have a passion for software design, with a focus on creating clean APIs and prioritizing simplicity in your solutions

• Be part of a welcoming and international community of 3000+ people from over 50 nationalities across 12 global offices.
• SumUp Corporate Pension Scheme (qualifying earnings)
• Competitive Health Insurance Cover with Vitality (including optical, dental) 
• Life Assurance cover with MetLife for 2 x your salary
• Learning & development budget: €2000/year
• Babbel: unlimited access to the Babbel platform to learn up to 14 languages
• SumUp Sessions: Confidential, accessible self-care. A mental health & wellbeing tool available to all employees through access to licensed psychotherapists
• Break4me - 1 month paid annual leave after 3 years of service

The Activation team within the Growth Tribe is on a mission to empower newly signed-up merchants, guiding them through their initial product experiences tailored to their preferences. We ensure they become aware of our comprehensive product ecosystem and understand how our various offerings seamlessly integrate to support their business needs.

Our mission spans three platforms—web, iOS, and Android—and we design, build, and maintain the microservices necessary to deliver this experience. The features we develop have a significant global impact, reaching millions of SumUp merchants worldwide.

At SumUp, all squads are cross-functional and co-located product teams, where every member is empowered to make meaningful contributions to feature design, prioritization, and delivery. Here, you’ll have the opportunity to influence not just the future of our team, but also the broader direction of SumUp’s Engineering and Product organization.

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.