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iOS Engineer - Design System

SumUpβ€’πŸ“ Berlin, Germanyβ€’Estimated: $80,000 - $120,000

✨ AI Insights & Summary

SumUp is seeking an iOS Engineer to join their Design System team, playing a crucial role in crafting reusable UI components that enhance user and developer experiences across their fintech platform. This position offers a unique chance to influence the consistency and quality of SumUp's products, working with modern technologies like SwiftUI and championing accessibility. Ideal for engineers who thrive on building foundational elements and collaborating to set high standards for mobile development, this role provides significant impact and professional growth.

About the Role

As an iOS Engineer in the Design System team, you will translate SumUp's design language into an easy-to-use, reusable library of user interface components and experience patterns, enabling product teams to build cohesive and accessible user experiences. The Design System team collaborates closely with the Mobile Platform team to provide guidance and set standards for all product teams across the company.

The Design System team is expanding to cover SumUp's growing ecosystem of merchant and consumer-facing products. This role offers a unique opportunity to optimize and expand a system that helps developers build features faster and deliver high-quality experiences to millions of users worldwide.

What You'll Do

  • Shape the core experience of users and developers interacting with SumUp's Android ecosystem.
  • Work closely with the product and design team to build components that are maintainable, usable, beautiful, and consistent.
  • Embed accessibility best practices into every component (content descriptions, touch target size, color contrast, dynamic type).
  • Provide hands-on technical support to product teams to deliver company priorities, such as the upcoming brand refresh.
  • Review code contributions, enforce design‑system conventions, and guide engineers on best practices for reusable UI development.
  • Migrate legacy UIKit-based components to SwiftUI while maintaining system stability.
  • Identify and address tech debt proactively to ensure a high bar for engineering excellence and codebase health.

Requirements

  • 3+ years of professional experience in iOS development.
  • Fluent in Swift and Objective-C, with deep knowledge of both SwiftUI and UIKit.
  • Pride in crafting accessible user experiences and a strong grasp of testing best practices.
  • Self-motivated, clearly structured working style, and excellent English communication skills.
  • Enthusiasm for keeping up-to-date with advancements in the iOS ecosystem and sharing knowledge with the iOS community.

Why You Should Join SumUp

  • 🌎 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.
  • πŸš€ Enrolment onto our Virtual Stock Option programme: you will own a stake in SumUp's future success.
  • πŸ“š 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.
  • πŸ’Ά A corporate pension scheme where we match up to 20% of your contributions.
  • πŸ– Generous time off: enjoy 28 days of paid leave plus public holidays and special leave days.
  • πŸš΅πŸΎβ€β™‚οΈ Numerous other benefits such as Urban Sports Club subsidy, Kita placement assistance, subsidised office lunches.
  • 🌴 Break4me: 1-month sabbatical after 3 years of service.
  • πŸ”— Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team.

About SumUp

We believe in the everyday hero.

Small business owners are at the heart of all we do, so we're creating tools that help them run their businesses. With a founder's mentality and a 'team-first' attitude, our diverse teams across Europe, South America, and the United States work together to ensure that the small business owners we partner with can be successful doing what they love.

SumUp is an Equal Employment Opportunity employer that proudly pursues and hires a diverse workforce. SumUp does not make hiring or employment decisions on the basis of 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. SumUp also strives for a healthy and safe workplace and strictly prohibits harassment of any kind.

SumUp will not accept unsolicited resumes from any source other than directly from a candidate.

Job Application Tip: We recognize that candidates feel they need to meet 100% of the job criteria to apply. Please note that this is only a guide. If you don't tick every box, it's okay too because it means you have room to learn and develop your career at SumUp.

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Job Overview

Posted7/1/2026
CategoryMobile Development
SourceArbeitnow

FAQ

Is this position remote?

The iOS Engineer - Design System role is a onsite opportunity. The location specified is Berlin, Germany.

What is the salary?

The salary is not explicitly stated, but is competitive and based on experience.

How do I apply?

You can apply by clicking the "Apply for this role" button above to submit your application on the hiring website.

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