iOS Developer, Inisde IR35, Contract

iOS Engineer - Inside IR35 - £550 per day - 3 days in London

As a Senior Mobile Engineer, you will contribute to the development of best-in-class iOS applications, working closely with product owners, stakeholders, and engineering peers to deliver innovative, high-quality solutions.

Reporting to a Principal Engineer, you will support the delivery of technical strategy and hands-on implementation, while mentoring other engineers and helping to maintain high standards of engineering excellence.

Key Responsibilities

• Develop new features and optimise existing functionality for iOS applications, ensuring they meet business and user requirements.
• Collaborate with product owners, stakeholders, and cross-functional teams to deliver high-quality mobile solutions.
• Participate in technical discussions to ensure solutions are robust, scalable, and fit for purpose.
• Mentor and support other engineers, promoting coding standards and engineering best practices.
• Assist the Principal Engineer in delivering technical strategy and ensuring alignment with business objectives.
• Conduct thorough code reviews to maintain quality, security, and performance standards.
• Lead by example, fostering a culture of continuous improvement, collaboration, and innovation.
• Present technical concepts and solutions to internal teams and contribute to strategic discussions.

Skills & Experience

• Strong commercial experience developing native iOS applications using Swift.
• Excellent understanding of iOS architecture patterns (eg MVVM, MVC, VIPER).
• Knowledge of SOLID design principles and modern software engineering practices.
• Experience with SwiftUI and UIKit.
• Experience with unit testing using XCTest.
• Experience with UI automation testing using XCUITest.
• Experience with asynchronous programming, including Swift Concurrency (async/await) and Combine.
• Experience integrating RESTful APIs and working with JSON data.
• Experience with Continuous Integration and Continuous Deployment (CI/CD) pipelines; experience with CircleCI would be beneficial.
• Experience with dependency management tools such as Swift Package Manager, CocoaPods, or Carthage.
• Familiarity with App Store deployment processes and Apple's Human Interface Guidelines

Working Arrangement

This role operates within a hybrid working model, requiring a minimum of three days per week in the office. Office-based collaboration supports innovation, knowledge sharing, and effective teamwork. Depending on business requirements, some roles may require additional office attendance.