Senior iOS Engineer: SwiftUI & Cross‑Platform Impact

SumUp; Paris; On-site; EUR 90,000 - 130,000; Full time

Benefits offered by this job

Office in Paris

Virtual Stock Option

L&D budget €2000

Corporate pension

Health insurance coverage 50%

Meal tickets

Transportation costs covered

One-month sabbatical after 3 years

Referral bonus

Job summary

SumUp’s Order Taking squad owns core ordering experiences within the Point of Sale app, including shopping bag, checkout, the catalog experience, open orders, table management and printer integrations. As a Senior iOS Engineer, you’ll build hospitality workflows with SwiftUI on iOS and contribute to Kotlin Multiplatform logic across platforms.

You’ll join a small, fast-moving team that values direct communication, code reviews and proactive problem solving, in a Paris office-first setup.

Qualifications

• 5+ years of production iOS experience with Swift
• Experience in a large codebase and pragmatic improvements
• Willingness to learn Kotlin and Kotlin Multiplatform; hands-on experience welcome

Responsibilities

• Design and build new ordering experiences in SwiftUI for iOS and evolve existing features
• Contribute to shared Kotlin Multiplatform business logic and shape architecture
• Improve reliability and usability of ordering features across devices
• Collaborate with Android engineers to ensure consistent cross-platform behavior

Skills

Swift

SwiftUI

iOS

Kotlin Multiplatform

Code reviews

Team collaboration

Tools

Xcode

CI/CD

Job description

SumUp’s Order Taking squad owns core ordering experiences within the Point of Sale app, including shopping bag, checkout, the catalog experience, open orders, table management and printer integrations. As a Senior iOS Engineer, you’ll build hospitality workflows with SwiftUI on iOS and contribute to Kotlin Multiplatform logic across platforms.

You’ll join a small, fast-moving team that values direct communication, code reviews and proactive problem solving, in a Paris office-first setup.