Senior iOS Developer - Scale up

We are looking for a senior iOS engineer to our client.Start date: FlexibleDuration. 6 months contractLocation; Hybrid setup from Stockholm (2-3 days in the office per week)What you will doBuild new features and improve existing ones in our iOS app - used by millions of users every day.Write clean, efficient, and testable Swift code using both UIKit and SwiftUI.Collaborate closely with iOS and Android engineers, designers, QAs, backend engineers andproduct owners to deliver high-quality experiences.Contribute to architecture discussions and help shape how we build scalable, maintainablemobile software.Continuously refactor and modernize our codebase, adopting the latest iOS technolo gies andbest practices.Improve and maintain automated testing, ensuring releases are fast, stable, and reliable.Participate in code reviews, mentor engineers, and share knowledge across the team.Take part in app release coordination and ensure smooth deployments through CI/CD pipelines.Who you areExperienced iOS engineer (5–8 years) with a strong track record of shipping high-quality consumer apps.Proficient in Swift, with solid understanding of UIKit, SwiftUI, and modern concurrency (async/await).Strong grasp of software architecture patterns (MVVM, Clean Architecture, or similar).Passionate about writing clean, maintainable, and well-documented code.Comfortable with testing frameworks (XCTest, Snapshot tests) and CI/CD tools (Fastlane, Codemagic, GitHub Actions, Xcode Cloud).Curious, proactive, and eager to improve developer experience and overall app performance.Great communicator and collaborator who enjoys teamwork, feedback, and shared success.Bonus: experience with Firebase, MapKit, or StoreKit.