iOS Engineer - Mobile Platform

Join SumUps Mobile Platform Squad as an iOS Engineer and become part of the foundation that powers our iOS app. With significant investment in our mobile products, we are empowering feature teams to deliver world-class experiences. You will contribute to building the robust infrastructure that enables iOS engineers across the company to operate with productivity and efficiency, directly shaping the future of mobile payments for millions of merchants.

Our engineering culture champions autonomy, collaboration, and innovation. Your work will have a meaningful impact, connecting you with mobile engineers across the organization.This role focuses on:

• Improving Developer Experience: Building and maintaining tools and infrastructure that enhance the developer experience, reduce build times, and streamline workflows for our mobile engineering team.

• Maintaining CI/CD Pipelines: Contributing to the reliability and efficiency of our CI/CD systems, helping feature teams ship with confidence.

• Evolving a Mature Codebase: Participating in the improvement of our iOS codebase, focusing on simplicity, maintainability, and long-term health.

• Supporting Product Stability: Providing foundational support across our iOS products, ensuring consistency and reliability for merchants worldwide.

What youll do:

• Develop and maintain internal tools, frameworks, and infrastructure that support the consistency and scalability of our iOS app.

• Contribute to CI/CD systems and developer tooling initiatives to streamline mobile development processes.

• Participate in tackling technical debt and improving code health in a complex, mature codebase.

• Collaborate closely with mobile engineers across squads, providing support and sharing knowledge.

• Take ownership of well-scoped platform initiatives from implementation through to delivery.

• 3+ years of professional iOS development experience, with solid knowledge of Swift and modern iOS frameworks.

• Experience with or genuine interest in CI/CD pipelines (e.g., GitHub Actions, Fastlane) and developer tooling.

• A good understanding of testing methodologies, architecture patterns, and design principles.

• A pragmatic and flexible mindset - comfortable working outside the boundaries of a typical feature team.

• The ability to navigate and improve complex, mature codebases with adaptability and curiosity.

• Strong communication and collaboration skills, with comfort in frequent context switching.

Bonus Points (Nice to Have)

• Experience with modularized codebases, internal tooling, or Ruby scripting.