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# iOS Engineer - Mobile Platform

- **Company:** SumUp
- **Location:** Köln, Germany
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Continuous Integration, Programming Tools, Github, Ruby, Mobile Os, Ios Frameworks, Technical Debt
- **Published:** July 22, 2026
- **Apply:** https://de.indeed.com/viewjob?jk=bfefd40a0d12358d

## About the Role

* Bring 3+ years of professional iOS development experience, with solid hands-on knowledge of Swift and modern iOS frameworks
 * Are experienced with or genuinely excited about CI/CD pipelines (e.g., GitHub Actions, Fastlane) and developer tooling - you see automation as a superpower
 * Have a solid understanding of testing methodologies, architecture patterns, and design principles, and apply them with pragmatism
 * Are comfortable working outside the boundaries of a typical feature team - you're adaptable, self-directed, and thrive with a mix of structured and ambiguous work
 * Can navigate and improve complex, mature codebases with patience, curiosity, and a long-term mindset
 * Communicate and collaborate clearly across teams - you're comfortable with frequent context switching and know how to bring clarity to technical discussions, * Experience with modularized codebases, internal tooling, or Ruby scripting

## Description

* Develop and maintain internal tools, frameworks, and infrastructure that support the consistency, scalability, and long-term health of SumUp's iOS app
 * Contribute to CI/CD systems and developer tooling initiatives that help feature teams ship with speed and confidence
 * Tackle technical debt and codebase health improvements in a complex, mature codebase - with a focus on simplicity and maintainability
 * Collaborate closely with mobile engineers across squads, acting as a go-to partner for platform questions, reviews, and best practices
 * Take end-to-end ownership of well-scoped platform initiatives - from design and implementation through to delivery and documentation


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