# iOS Engineer - Design System at SumUp

- Company: SumUp
- Status: Open
- Workplace: On-site
- Location: Paris, Paris, France
- Level: Mid-level
- Discipline: Mobile
- Employment: Full-time
- Posted: 2026-11-11
- Skills: iOS
- Apply: https://sumup.com/careers/positions/8937745002?gh_jid=8937745002

## Description

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 i

More SumUp roles: https://deviantjobs.com/companies/sumup