Description
About the Role
At SumUp, we're on a mission to bring merchants and consumers closer together and help local communities thrive. With SumUp Consumer, we're building a rewarding banking experience that connects people to the small businesses they love while enabling free transactions for our merchants.
SumUp Consumer helps consumers manage their money with ease and get more from everyday spending. It offers seamless payment experiences and financial tools designed for modern life—spanning banking, cards, savings, and open banking.
This is a high-impact, hands-on engineering role where you'll own the development and quality of the SumUp Consumer iOS application. You'll work directly on the features that consumers interact with every day, collaborating closely with Backend Engineers, Product Managers, Designers, and Android Engineers to deliver polished, reliable, and impactful mobile experiences.
What you’ll do
- Build and ship features across key consumer banking product areas—including KYC flows, card management, savings, open banking consent, and payment experiences.
- Write clean, testable Swift code and participate actively in code reviews to uphold high engineering standards across the codebase.
- Contribute to and evolve the iOS app architecture, including modularisation, dependency management, and scalability patterns as the product grows.
- Own performance and reliability by monitoring crash rates, proactively identifying issues, and driving app stability before they impact consumers.
- Maintain a culture of quality by writing unit and UI tests and contributing to the health of our CI/CD pipelines.
- Collaborate cross-functionally with Backend Engineers on API design, Product Managers on roadmap priorities, and Designers on seamless user experiences.
What makes you great for this position
- Strong proficiency in Swift and deep knowledge of the iOS framework (Objective-C knowledge is a plus).
- Solid understanding of RESTful API integration and experience working with backend engineers on API design.
- Experience working with agile methodologies, CI/CD pipelines, and pair programming.
- Deep care for user interaction, usability, and interface quality—you build things that feel great to use.
- Ability to understand a large problem, design a solution, break it into deliverable chunks, and ship it independently.
- Passion for clean, maintainable, and testable code and a genuine pride in your craft.
- Mature, business-minded approach—balancing high-quality engineering with pragmatism in a fast-paced environment.
- Self-driven and proactive nature, comfortable owning a domain with limited direct oversight.
- Previous experience in payments, financial services, or fintech environments is a strong plus.
Why you should join SumUp
🌎 Opportunity to work with SumUppers globally on large-scale fintech products used by millions of businesses worldwide.
🌈 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 for your individual development, which can be used to attend conferences and/or advancing your career through further education.
💶 Competitive Health & Life Insurance: Includes comprehensive cover (optical, dental) and Life Assurance (2 x your salary).
💰 Financial Future: A corporate pension scheme and a referral bonus for bringing in top talent.
🏖️ Generous time off: 28 days of paid leave plus public holidays and special leave days.
🌴 Break4me: 1-month paid sabbatical after 3 years of service.
🎉 Culture of Connection: Attend global offsites and/or hackathons with your teammates.
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 a vast set of simple and affordable business tools to help them start, run, and grow their businesses. Today, over 4 million businesses in 36 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 3,000 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 an inclusivity and 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.
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.
Similar jobs
Est. 80,000 EUR
About the team: The Mobile Platform Squad is the backbone of SumUp's iOS engineering — we build and maintain the foundation that every iOS feature team relies on to ship fast, confidently, and at scale. We're a small, hi…
Est. 80,000 EUR
About the team: The Mobile Platform Squad is the backbone of SumUp's iOS engineering — we build and maintain the foundation that every iOS feature team relies on to ship fast, confidently, and at scale. We're a small, hi…
Est. 120,000 GBP
About the team: At SumUp, we're on a mission to bring merchants and consumers closer together and help local communities thrive. With SumUp Consumer, we're building a rewarding banking experience that connects people to…
Est. 80,000 EUR
About the team: As an iOS Engineer on the Design System team, you'll translate SumUp's design language into a reusable, easy-to-use library of UI components and experience patterns — empowering product teams to build coh…
Est. 120,000 EUR
The Engagement tribe sits at the heart of SumUp's merchant experience, responsible for the product surfaces that 4+ million business owners interact with every day. This is a rare Staff-level IC role responsible for the…
Est. 80,000 EUR
The SuperApp squad owns parts of the merchant experience across Web, Android, iOS and the flows that millions of small business owners use every day to run and grow their businesses. As our dedicated full stack web engin…
Est. 62,400 EUR
At SumUp, the Global Bank tribe builds the core infrastructure and services that give merchants a digital business account, helping small businesses manage their banking needs easily and reliably. The Transfers Gateway s…
SumUp builds simple, affordable financial tools that help small businesses get paid, manage their money, and grow. Beyond payments, we offer a number of financial products - including business banking, card products, len…
Est. 90,000 EUR
About the team: The Commercial Systems and Intelligence squad is a newly formed team within SumUp's Acquisition Mission under the Run & Grow tribe. We sit at the intersection of data, backend engineering, and sales o…
Est. 120,000 GBP
Head of Consumer Growth SumUp is building a consumer financial product with a distribution advantage that almost no other fintech can replicate. More than four million merchants use SumUp, and more than a billion consume…
Est. 85,000 EUR
The Verification squad sits at the heart of SumUp's ability to operate across 37 markets. We own the systems that determine whether a merchant's identity is verified, whether that verification meets the regulatory bar in…
Est. 80,000 EUR
The Sidekick team builds and owns the progressive web app that SumUps field sales agents rely on every day, a tool that brings together everything a seller needs in one place: creating offers on the go, signing up new me…
Est. 65,000 GBP
Senior Strategic Business Partner SumUp is building a full-featured personal account for consumers across Europe- making it easy to spend globally, manage money, and get rewarded for everyday spending. As our Senior Peop…
Est. 85,000 EUR
About the role SumUp is looking for a Systems Engineer Lead to join our Corporate IT team. In this role, you will report to the Head of Global IT. You will establish and lead our Systems Engineering function within Corpo…
Est. 60,000 GBP
At SumUp, we build simple, affordable financial tools that empower over 4 million small businesses worldwide to get paid, manage their money, and thrive. We are a global team of 3,000+ people across 20+ offices and 90+ n…
Est. 80,000 GBP
SumUp | Product & Design | London, United Kingdom Competitive salary · Office-first Check out our London office 🎥 About the team The Consumer Bank squad sits at the heart of one of SumUp's most exciting growth bets…
Est. 55,000 GBP
About the team SumUp is best known for helping small businesses get paid — our Consumer tribe builds the other half of that story. We make SumUp Consumer, the wallet app that lets everyday consumers pay SumUp merchants w…
Est. 65,000 GBP
Senior Marketing Manager (Merchant to Consumer) About the team SumUp is building a consumer financial product with a distribution advantage that almost no other fintech can replicate. More than four million merchants use…
Est. 41,700 EUR
At SumUp, the Global Bank tribe builds the core infrastructure and services that give merchants a digital business account, helping small businesses manage their banking needs easily and reliably. The Transfers Gateway s…
Est. 90,000 EUR
Location: Berlin, Germany (office first) Team description Our Platform Tribe builds Fleet, the infrastructure foundation that every engineering team at SumUp relies on to ship safely and quickly. Fleet gives teams a stab…
Est. 80,000 EUR
About the team You'll join the Sell Online Tribe, the group shaping how merchants bring their businesses to life online. We design and build tools that help millions of entrepreneurs, from barbers to bakers, sell their p…
Est. 80,000 GBP
Senior Marketing Manager (Direct to Consumer) About the team SumUp is building a consumer financial product with a distribution advantage that almost no other fintech can replicate. More than four million merchants use S…
Est. 80,000 EUR
Help build ML systems that make financial crime harder to hide Financial crime is constantly changing. New patterns and behaviours emerge all the time, and the data we work with is complex. Our work helps make financial…
In the Global Bank tribe, we are building the infrastructure and core services needed to provide our merchants with a digital bank account that empowers them to be successful at doing what they love. Our goal is to becom…
SumUp enables businesses to get paid easily, process orders quickly, sell online instantly and manage their money more efficiently. We create the tools businesses need to make their business and their customer experience…
Est. 80,000 EUR
Our Billing and Subscriptions team sits at the heart of how SumUp's merchants pay for, manage, and grow with our products. We own the billing engine, merchant wallet, and subscription experiences that underpin millions o…
Team description: SumUp's Risk & Fraud Operations team sits at the heart of protecting millions of small businesses and consumers who rely on our financial products every day. As we scale our Consumer offering across…
Est. 80,000 GBP
Technical Accounting Manager — Finance About the team This is a senior technical accounting role with real strategic influence — not a policy maintenance job. You'll help shape how SumUp's financial statements are struct…
Est. 80,000 EUR
About the team: The MarTech team builds the marketing and growth systems that help SumUp reach more merchants around the world. We combine backend engineering, data engineering, data science and external marketing platfo…
Est. 65,000 EUR
Team description The Central Product Analytics team sits at the heart of how SumUp understands and improves the experience of millions of merchants using our products every day. This role owns the Engagement domain — cov…