Senior Mobile Software Engineer – iOS

About the role

We are seeking a Senior Mobile Software Engineer (iOS) to join our team. You will be responsible for designing, developing, and maintaining production iOS applications using Swift and Objective-C. Your role includes shipping and supporting high-quality releases to the Apple App Store, optimizing for performance, reliability, and responsiveness, collaborating with design, product, and QA teams, contributing to improving development practices, and mentoring peers.

Essential Duties And Responsibilities

• Design, develop, and maintain production iOS applications using Swift and Objective-C.
• Ship and support high-quality releases to the Apple App Store.
• Optimize for performance, reliability, and responsiveness across a wide range of devices.
• Collaborate closely with design, product, and QA to plan, implement, and validate new features.
• Contribute to improving development practices, coding standards, and CI/CD pipelines.
• Stay up to date on the latest iOS SDK changes, frameworks, and Apple developer tools.
• Mentor peers and share expertise in Swift, UIKit, and app architecture.
• Communicate progress, risks, and technical insights clearly within the team.

Essential Skills

• 5+ years of professional mobile development experience.
• 3+ years of hands-on iOS development using Swift and Objective-C.
• Proven experience releasing and maintaining iOS apps in the App Store.
• Strong understanding of UIKit, Foundation, Swift Concurrency, and app lifecycle.
• Experience with REST APIs, JSON, and data persistence using SQLite.
• Familiarity with modern CI/CD tools (Xcode Cloud, Azure DevOps, or GitHub Actions).
• Solid grasp of QA methodologies, Agile development, and SDLC best practices.
• Excellent communication and collaboration skills.
• Self-driven, organized, and committed to building exceptional user experiences.

Essential Technical Skills

• Swift and Objective-C (commercial experience).
• UIKit, SwiftUI, and Auto Layout.
• Xcode, Instruments, and Apple developer tools.
• Git (GitHub, Azure Repos, or equivalent).
• SQLite database management, schema design, and query optimization.
• App Store Connect, TestFlight, and provisioning workflows.
• CI/CD with Xcode Cloud, Azure DevOps, Jenkins, or GitHub Actions.
• Profiling, debugging, and performance optimization using Instruments.

Benefits

• Private Medical Insurance with Vitality Health
• 27 days holiday (plus bank holidays), rising with length of service
• Hybrid working
• Buy/sell up to 3 days holiday
• Healthcare plans with WPA and Unum
• Career development and professional growth opportunities
• Promoting work/life balance
• Pension with Scottish Widows
• Discount Platform via Perkbox
• Free drinks and snacks on-site
• Octopus EV Salary Sacrifice Scheme *after probation
• Cycle to Work Scheme *after probation