# iOS Engineer - Design System at SumUp > France · Unspecified · Mobile · open. Source: https://alderhq.app/jobs/greenhouse%3Asumup%3A8937745002 (read 2026-11-11). ## Facts (observed) - Company: [SumUp](https://alderhq.app/companies/sumup) - Location text: Paris, Paris, France; Berlin; Cologne; London; Paris; Sofia - Where it can be done from (inferred): France (evidence: "Location: Paris, Paris, France; Berlin; Cologne; London; Paris; Sofia") - Posted: 2026-11-11 (0 days ago) - First seen by alder: 2026-11-11 · last verified: 2026-11-11 - Reposted: 0 times · edited: 0 times - Apply on the employer's site: https://sumup.com/careers/positions/8937745002?gh_jid=8937745002 - Skills listed (inferred): Swift/iOS, Testing ## Pay and sponsorship - Posted pay: not posted - Market band for similar posted roles (Paris, n 3): p25 €62k, median €68k, p75 €96k - Recognised sponsor (NL): registered as "SumUp Limited" (checked 2026-11-09, [register](https://ind.nl/en/public-register-recognised-sponsors/public-register-regular-labour-and-highly-skilled-migrants)) - Licensed UK sponsor: registered as "SumUp Payments Limited" (checked 2026-11-09, [register](https://www.gov.uk/government/publications/register-of-licensed-sponsors-workers)) ## Description (the employer's text) ### 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 cohesive, accessible user experiences at scale. The Design System team works hand-in-hand with the Mobile Platform team to set standards and provide guidance across all product teams at SumUp. As we expand our ecosystem of merchant and consumer-facing products, this role offers a rare opportunity to shape the foundation that helps developers build faster and ship higher-quality experiences to millions of users worldwide. ### What you’ll do - Shape the core experience for both users and developers interacting with SumUp's iOS ecosystem - Collaborate closely with product and design teams to build components that are maintainable, consistent, and beautiful - Embed accessibility best practices into every component — from content descriptions and touch target sizing to color contrast and dynamic type - Provide hands-on technical guidance to product teams to deliver on company priorities, including the upcoming support for landscape orientation - Review code contributions, enforce design system conventions, and mentor engineers on best practices for reusable UI development - Lead the migration of legacy UIKit-based components to SwiftUI while maintaining system stability - Proactively identify and address technical debt to uphold a high bar for engineering excellence and codebase health ### You’ll be a great fit for this role if you - Bring 3+ years of professional iOS development experience, ideally on large-scale or consumer-facing applications - Are fluent in Swift, with deep hands-on knowledge of both SwiftUI and UIKit — and a clear view on when and how to use each - Bring experience building or contributing to a design system, component library, or shared UI framework, and understand what it takes to make components truly reusable and scalable - Take pride in crafting accessible user experiences — you know your way around VoiceOver, dynamic type, color contrast, and touch target standards, and treat accessibility as a first-class concern, not an afterthought - Bring a strong grasp of testing best practices for UI components, including unit tests, snapshot tests, and UI automation - Are comfortable reviewing code and mentoring peers — you enjoy sharing knowledge, giving constructive feedback, and raising the bar for the whole team - Are self-motivated and structured in your working style — you manage your own priorities, communicate clearly in English, and thrive in a cross-functional, collaborative environment - Stay genuinely curious about the iOS ecosystem — you follow Apple's releases closely, experiment with new APIs, and are excited to bring fresh ideas back to the team ### Why you should join SumUp 🌎 Opportunity to work with a truly global, multicultural team from our Paris location. 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 💼 Financial security: corporate pension contributions that support your long-term future 🏥 Healthcare support: we cover 50% of the monthly cost of your health insurance for your Mutuelle and Prévoyance 🚌 Extra allowances: we offer restaurant tickets (Swile) and cover transportation costs 🌴 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 We believe in the everyday hero. Small business owners are at the heart of all we do, so we're creating tools that help them run their businesses. With a founder’s mentality and a 'team-first’ attitude, our diverse teams across Europe, South America and the United States work together to ensure that the small business owners we partner with can be successful doing what they love. --- Data: alder (https://alderhq.app). Cite https://alderhq.app/jobs/greenhouse%3Asumup%3A8937745002 and the date you read it. Observed facts come from the employer's own listing; location reach, level, family and skills are inferences.