SENIOR iOS ENGINEER

Clearance required: SC cleared or Eligible

This role requires additional vetting, which means this could take longer than our normal onboarding process. You will require additional vetting for this position, which means the process can take longer than the usual onboarding process with Capgemini. Please do not hesitate to get in touch if you have any queries.'

Interview process: Tech IV

Location: Hybrid

IR35 Status: PAYE via Umbrella company only

Job Description:

We are seeking an experienced Senior iOS Developer to design and build high-quality native mobile applications with modern, AI-enabled capabilities. The ideal candidate holds active SC clearance and brings strong experience in delivering performant, secure, and user-focused iOS solutions.

Experience working to GDS (Government Digital Service) standards and familiarity with AI-assisted development tools (eg, GitHub Copilot) are highly desirable.

Key Responsibilities

• Design, develop, and maintain native iOS applications using Swift and the iOS SDK
• Integrate RESTful APIs and external services into mobile workflows
• Optimise application performance, including caching strategies, offline support, and API efficiency
• Support production releases, ensuring readiness for App Store submission
• Address App Store compliance issues and respond to rejection feedback
• AI Engineering & Development Practices
• Leverage AI agents and coding assistants (eg, GitHub Copilot) for code generation, refactoring, and testing
• Review and validate all AI-generated code prior to production use
• Use AI tools to support debugging, root cause analysis, and impact assessment

Skills & Experience
Essential:

• Strong experience with Swift and iOS SDK
• Proven experience integrating REST APIs (or similar services)
• Hands-on knowledge of App Store Connect, TestFlight, provisioning, and code signing
• Experience with mobile performance optimisation and secure coding practices
• Active SC clearance

Desirable:

• Experience working with GDS (Government Digital Service) standards
• Familiarity with AI platforms and APIs (eg, OpenAI, Azure AI)
• Experience using AI development tools such as GitHub Copilot or similar coding assistants
• Understanding of AI/UX interaction patterns and best practices

Candidate Profile

• Detail-oriented, with a strong focus on quality and maintainability
• Comfortable working in fast-paced, evolving environments
• Proactive in adopting modern development practices, including AI-assisted workflows