iOS Engineer - Design System at sumup

The role

As an iOS Engineer on the Design System team, you will translate SumUp's design language into a reusable library of UI components and experience patterns. You will work closely with the Mobile Platform team to set standards and provide guidance across all product teams.

What you'll do

• Shape the core experience for users and developers within the iOS ecosystem
• Collaborate with product and design teams to build maintainable UI components
• Embed accessibility best practices into every component including VoiceOver and dynamic type
• Provide technical guidance to product teams on priorities like landscape orientation support
• Lead the migration of legacy UIKit components to SwiftUI while maintaining stability
• Review code contributions and mentor engineers on reusable UI development best practices

What you'll bring

• At least 3 years of professional iOS development experience on large-scale applications
• Deep fluency in Swift with hands-on knowledge of both SwiftUI and UIKit
• Experience building or contributing to design systems and shared UI frameworks
• Strong expertise in accessibility standards and UI testing methodologies
• Excellent communication skills in English and a collaborative working style

Your impact

You will empower product teams to build cohesive and accessible user experiences at scale by providing a high-quality foundation. Your work will directly improve developer efficiency and ensure millions of users worldwide interact with a consistent and polished interface.