> Markdown version of [/jobs/ext/4663737-senior-ios-engineer](https://www.wearedevelopers.com/jobs/ext/4663737-senior-ios-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior iOS Engineer - **Company:** asos.com Ltd - **Location:** London, United Kingdom - **Experience:** Expert - **Salary:** £57,280 - **Contract:** Permanent contract - **Skills:** Clean Code Principles, IOS Applications, Apple Xcode, Computing Platforms, Unit Testing, Code Coverage, Software Design Patterns, Human-Computer Interaction, Microsoft UI Automation, Responsive Web Design, Ios Frameworks - **Published:** November 11, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5960245156 ## About the Role * Experience building iOS applications using Swift and the core iOS frameworks * Comfortable working with Xcode, Interface Builder and Auto Layout to create responsive user interfaces * Understanding of Apple's Human Interface Guidelines and platform design principles * Knowledge of common software design patterns and architecture concepts * An interest in writing clear, maintainable code and improving existing codebases * Experience building apps that work well across iPhone and iPad screen sizes * Familiarity with unit testing and a willingness to contribute to test coverage * Experience with UI automation tools, or a desire to learn them