Senior IOS Engineer - SuperApp

The Engagement Mission sits within the SuperApp & Web squad — a cross-functional team of engineers, product managers, and designers building the core experience that millions of merchants interact with every day.

This team owns the home screen of the SumUp Business App: the first thing a merchant sees when they open the app, and the surface that connects them to payments, banking, invoicing, loyalty, and more. We're growing the team because the roadmap is ambitious — new navigation patterns, deeper product integrations, and a full modularisation of the codebase — and we need someone who can hit the ground running and take real ownership from day one.

Check out our Berlin office

What you'll do

Build and maintain core iOS features across the home screen, including first-time user experience, quick actions, widgets, the tools section, and upsell and cross-sell channels

Lead the development of new initiatives end-to-end — from technical design through to shipping — working closely with product, design, and partner engineering teams

Drive the migration to SwiftUI and contribute to the modularisation of our codebase, improving scalability and developer experience

Review code, shape technical decisions, and help raise the bar across the iOS chapter

Collaborate with multiple internal teams to align on feature direction, open pull requests, and deliver in a fast-moving, loosely defined environment

What We're Looking For

Strong proficiency in Swift and SwiftUI, with a track record of building and shipping production iOS features at scale

Experience navigating and refactoring complex, evolving codebases with a focus on clean architecture (MVVM/MVP)

Comfortable working in a cross-functional environment where scope isn't always well-defined and priorities shift quickly

Ability to take full ownership of initiatives independently — from technical scoping through to delivery — without needing close guidance

Experience collaborating across teams where you don't own th