Responsibilities
- Build and maintain reusable, consistent, and accessible iOS UI components and experience patterns.
- Collaborate with product and design teams to support SumUp’s product priorities and upcoming brand refresh.
- Embed accessibility standards including VoiceOver, dynamic type, color contrast, and touch-target sizing.
- Provide hands-on technical guidance to product teams and review code contributions for design-system conventions.
- Lead the migration of legacy UIKit components to SwiftUI while maintaining system stability.
- Identify and address technical debt, mentor engineers, and promote reusable UI development best practices.
Requirements
- 3+ years of professional iOS development experience, ideally with large-scale or consumer-facing applications.
- Fluency in Swift and deep hands-on knowledge of SwiftUI and UIKit.
- Experience building or contributing to a design system, component library, or shared UI framework.
- Strong understanding of accessible user experiences, including VoiceOver, dynamic type, color contrast, and touch-target standards.
- Experience with UI component testing, including unit tests, snapshot tests, and UI automation.
- Ability to review code, mentor peers, communicate clearly in English, and work collaboratively across functions.
- Curiosity about the iOS ecosystem and Apple’s releases and APIs.
Benefits
- Office-first work setup from SumUp’s Berlin office.
- Virtual Stock Option programme.
- €2000 annual learning and development budget.
- Corporate pension scheme matching up to 20% of employee contributions.
- 28 days of paid leave plus public holidays and special leave days.
- Urban Sports Club subsidy, Kita placement assistance, and subsidised office lunches.
- One-month Break4me sabbatical after three years of service.
- Referral bonus programme.
Tech Stack
Categories
About SumUp
SumUp is a leading global fintech company committed to levelling the playing field for small businesses. Founded in 2012, we’re the trusted partner of over 4 million merchants in 37 markets, providing simple and affordable tools that help them manage payments, finance, and customer relationships. Our vision is a world where everyone can build a thriving business. Guided by this, we champion small business ownership by creating accessible solutions that empower entrepreneurs to grow and succeed. Our diverse team of over 3,000 SumUppers — representing more than 90 nationalities across 20 offices worldwide — is at the heart of our success. Beyond business, we donate 1% of the net revenue generated by Solo devices to environmental causes and support educational and entrepreneurial initiatives around the world. Recognised as a Top Global Employer for inclusion by the Stonewall Workplace Equality Index in 2022 and 2023, and awarded Fintech Diversity Initiative of the Year at the Irish National Fintech Awards in 2025, SumUp continues to build an inclusive, supportive, and purpose-driven workplace where everyone belongs.