Senior iOS Engineer (KMP) - POS

United States Digital Space LLC; Berlin; Vor Ort; EUR 90.000 - 130.000; Vollzeit

Benefits dieser Stelle

Virtual Stock Option programme

Annual L&D budget €2000

Corporate pension match up to 20%

28 days paid leave + holidays

Urban Sports Club subsidy

Kita placement assistance

Subsidised office lunches

Break4me sabbatical: 1 month after 3y

Zusammenfassung

United States Digital Space LLC is recruiting a Senior iOS Engineer to design and implement new ordering experiences in SwiftUI for iOS, while contributing to Kotlin Multiplatform logic. You will work with a cross‑functional team to align product and architecture across devices and platforms.

The role focuses on scalable mobile engineering for a large, multi-device POS application, with collaboration across Android and platform teams.

Qualifikationen

• 5+ years of experience building production iOS apps in Swift with strong SwiftUI knowledge.
• Experience in large, established codebases and making pragmatic improvements without full rewrites.
• Willingness to learn Kotlin and Kotlin Multiplatform; hands-on KMP experience welcomed but not required.
• Ability to work independently, challenge assumptions, and communicate clearly.

Aufgaben

• Design and build new ordering experiences in SwiftUI for iOS, evolving capabilities like table management and printer integrations.
• Contribute to shared Kotlin Multiplatform business logic and shape architecture of the ordering domain.
• Improve reliability and usability of ordering features across phones, tablets, and POS devices.
• Collaborate with Android engineers and platform teams to ensure cross‑platform consistency and multi‑device synchronization.
• Participate in code reviews, pair programming and collaborative testing to maintain a high quality bar.
• 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.

Kenntnisse

Swift

SwiftUI

Kotlin

Kotlin Multiplatform

Cross-platform

Code reviews

Pair programming

Communication

Jobbeschreibung

Team descriptionThe Order Taking squad owns core ordering experiences within the company's Point of Sale app, including the shopping bag, checkout, the catalog experience within ordering, open orders, table management and printer integrations. These capabilities help thousands of hospitality merchants manage orders reliably during daily service.

As a Senior iOS Engineer, you'll build new hospitality workflows and evolve established ordering experiences across iOS and Android. You'll work with SwiftUI on the platform-specific UI and contribute to shared Kotlin Multiplatform business logic. The role involves complex mobile engineering across multi-device synchronisation, shared order state and a large, established application.

You’ll join a small, experienced and fast-moving squad that works collaboratively through technical refinement, code reviews and pair programming. The team values engineers who communicate directly, challenge assumptions and proactively shape solutions rather than simply execute predefined tasks.

What you'll do

• 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

You’ll be great for this role if…

• 5+ years of experience building production iOS applications in Swift, with strong SwiftUI knowledge
• Experience working in a large, established codebase and making pragmatic improvements without requiring a full rewrite
• Openness to learning and contributing to Kotlin and Kotlin Multiplatform; previous hands-on KMP experience is welcome but not required
• Ability to work independently, challenge assumptions, propose solutions proactively and communicate clearly and directly
• Experience collaborating closely with Android engineers or other cross-platform partners to align product behaviour
• Sound technical judgement and the ability to balance product delivery, code quality and long-term maintainability

Why you should join the company

• Opportunity to work with SumUppers globally on large-scale fintech products used by millions of businesses worldwide, from our Berlin office.
• This involves an office-first setup
• Commitment to Diversity and Inclusion: be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced
• Enrolment onto our Virtual Stock Option programme: you will own a stake in the company's future success
• A dedicated annual L&D budget of €2000 for your individual development, which can be used to attend conferences and/or advance your career through further education
• A corporate pension scheme where we match up to 20% of your contributions
• Generous time off: enjoy 28 days of paid leave plus public holidays and special leave days
• Numerous other benefits such as Urban Sports Club subsidy, Kita placement assistance, subsidised office lunches
• Break4me: 1-month sabbatical after 3 years of service
• Referral Bonus: earn additional rewards by referring talented individuals to join the the company team

About the companyBe empowered to do more that matters.

At the company, we're on a mission to empower small businesses across the globe by providing simple and affordable tools that allow them to thrive. Today, over 4 million businesses in 39 markets rely on the company as their financial partner to manage payments, finance and customer relationships.

Our commitment to small businesses is reflected in our diverse team of over 4,000 SumUppers from over 90 nationalities, united by global collaboration and an innovative mindset. Our core values lay the foundation for who we are and what we stand for, shaping our work culture and driving our success. We foster inclusivity and a continuous learning culture, providing a safe space for personal and professional growth. Our differences make us unique and strong as we strive to create an environment where everyone belongs and feels supported, no matter how they identify.

the company is proud to be an Equal Employment Opportunity employer, actively seeking and embracing diversity in our workforce. We don't make hiring or employment decisions based on race, colour, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age or any other basis protected by applicable laws or prohibited by company policy. Our commitment extends beyond recruitment to creating a safe and respectful workplace where harassment of any form is strictly prohibited. Discover more about our culture and opportunities on our careers website, and follow our journey on LinkedIn, Instagram, and TikTok.

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