Senior iOS Engineer

Salary: £61,000 - 101,000 per year

Requirements:

• 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 Apples Human Interface Guidelines and platform design principles
• Knowledge of common software design patterns and architecture concepts
• 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

Responsibilities:

• Deliver high-quality features and improvements following iOS best practices and platform guidelines
• Work closely with designers to implement clear, accessible, and well-crafted user interfaces
• Collaborate within an agile, cross-functional team and share responsibility for team outcomes
• Take ownership of your work while contributing ideas and improvements across the codebase
• Support code quality, maintainability, and testing to ensure a reliable user experience

Technologies:

• Support
• Swift
• Xcode
• iOS
• UX UI Design
• Excel
• Mobile

More:

We are ASOS, the online retailer for fashion lovers around the world. We exist to give our customers the confidence to be whoever they want to be, and we want our people to feel the same freedom to be their true selves without judgement. We are proud members of Inclusive Companies, Disability Confident Committed, and signatories of the Business in the Community Race at Work Charter, and we were placed 8th in the Inclusive Top 50 Companies Employer list. We are looking for a Senior iOS Engineer to join our Customer Experience team and help continue the success of our iPhone and iPad apps. Our app is used by over 8 million active users globally, has an excellent App Store rating, and is built with modern iOS technologies including the latest versions of Swift. We offer benefits including employee discount, employee sample sales, 25 days of paid annual leave plus an extra celebration day, a discretionary bonus scheme, private medical care, a flexible benefits allowance, and personalised learning opportunities to help you thrive in your role.

last updated 34 week of 2026