Senior iOS Engineer (KMP)

About the role

The Order Taking squad at SumUp is looking for a Senior iOS Engineer to own core ordering experiences within their Point of Sale app. You will build new hospitality workflows, evolve established features, and contribute to shared Kotlin Multiplatform business logic. This role involves working within a small, collaborative team to ensure reliable multi-device synchronisation for thousands of hospitality merchants.

Responsibilities

• Design and build new ordering experiences in SwiftUI, while evolving established capabilities such as table management, kitchen workflows and printer integrations
• Contribute to shared Kotlin Multiplatform business logic and help shape the architecture of the ordering domain
• Improve the reliability and usability of ordering features used daily by hospitality merchants across phones, tablets and POS devices
• Collaborate closely with Android engineers and platform teams to maintain consistent cross-platform behaviour and reliable multi-device order synchronisation
• Take part in code reviews, pair programming and collaborative testing to maintain a high quality bar
• Help refine and scope upcoming work, bringing technical judgement to product and architectural trade-offs
• Contribute to Mobile Chapter and KMP platform initiatives across the wider POS tribe

Required skills

• iOS
• Swift
• SwiftUI
• Kotlin
• Kotlin Multiplatform
• Mobile engineering

Qualifications

• 5+ years of experience building production iOS applications in Swift
• Experience working in a large, established codebase

Benefits

• Virtual Stock Option programme
• Annual L&D budget of €2000
• Corporate pension scheme
• 28 days of paid leave
• Urban Sports Club subsidy
• Kita placement assistance
• Subsidised office lunches
• 1-month sabbatical after 3 years of service
• Referral Bonus

About the Company

SumUp is a financial partner for over 4 million small businesses across 39 markets, providing simple and affordable tools to manage payments, finance and customer relationships. With a diverse team of over 4,000 employees from over 90 nationalities, the company fosters an inclusive, innovative culture focused on personal and professional growth.