We're ASOS. We blend our flair for fashion with our love of cutting- edge technology, but more importantly were interested in how we can bring the best out of you. We exist to give people the confidence to be whoever they want to be, and that goes for our people too. At ASOS, you're free to be your true self without judgment, and channel your creativity into a platform used by millions. Job Description Are you a Senior iOS Engineer who takes pride in the success of the applications you work on? Do you enjoy seeing your apps featured with fantastic ratings on the App Store, but strive to keep pushing for more? We are looking for Senior iOS Engineer to join our Asos Media Group team who can help further the success of our iPhone and iPad app. The app has more than 8M active users worldwide, an average app store review of 5 stars, is written in the latest version of Swift, and has over 99.91% crash-free sessions. What Youll Be Doing Deliver top quality projects made using best practices and guidelines Work with our design team to implement clean design that respects the platform Work in an agile, cross-functional team taking joint responsibility for the engineering team deliverables You will take an active and hands-on approach in all features and tasks Qualifications Who wed like to meet You are an experienced iOS developer with an extensive professional knowledge You have the desire to learn all the latest techniques and new language releases You might build mobile apps in your spare time or take part in hackathons as a way of gaining more knowledge, and regularly keep up with the latest developments and trends in the community Strong experience with Git and source control workflows, including branching, merging, conflicts resolution, rebasing, history management, and code review processes Solid knowledge of Swift and the foundational iOS frameworks is essential Strong knowledge using XCode, IB and Auto Layout to create advanced UIs Deep knowledge of Apples HIG, design best practices, coding and naming guidelines Good knowledge of software design patterns and software architecture principles A passion for clean code Hands-on knowledge in building universal apps that support different layouts for iPhone and iPad Regularly Write unit tests Have hands-on exposure with UI test automation using Apple's XCTest framework Bonus Points Experience with CI / CD and automation tool such as Fastlane Experience with macOS shell scripting and commonly used command-line tools (e.g. Fastlane) Some experience with any server-side technology (e.g. Node.js, ASP.NET, PHP, RoR) and REST API development Additional Information What's in it for you? Competitive salary, pension, and private medical care scheme Performance related bonus Flex benefits allowance - which you can chose to take as extra cash, or use towards other benefits 25 days paid annual leave + an extra day for your birthday Employee discount (hello ASOS discount!) Tech Develops - our internal tech focussed skills development programme to focus on your personal growth as a technologist Opportunity to represent ASOS at industry leading events Opportunity to help shape and drive our DE&I initiatives in Tech (like our WIT movement and Diversity mentoring in Tech) Opportunity to make an impact from day one and work with the latest in cutting edge of technology