iOS Engineer

iOS Engineer

Posted 1 day ago by Whitehall Resources

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Negotiable
Inside
Remote
London Area, United Kingdom
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Apple IOS Application Programming Interface (API) Artificial Intelligence Code Generation Debugging Github IOS Applications Microsoft Azure Mobile App Mobile Devices RESTful API Root Cause Analysis Secure Coding Security Clearance Software Coding Software Development Swift (Programming Language) Testflight

Summary: The iOS Engineer role at Whitehall Resources involves designing and building high-quality native mobile applications for a key client on a 6-month contract. The position requires active SC clearance or eligibility and emphasizes experience with AI-enabled development tools and GDS standards. The role is primarily remote with occasional visits to London and is classified as inside IR35.

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
  • Leverage AI agents and coding assistants (e.g., 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

Key Skills:

  • 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
  • Experience working with GDS (Government Digital Service) standards
  • Familiarity with AI platforms and APIs (e.g., 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

Salary (Rate): undetermined

City: London

Country: United Kingdom

Working Arrangements: remote

IR35 Status: inside IR35

Seniority Level: Senior

Industry: IT

Detailed Description From Employer:

iOS Engineer

Whitehall Resources require an iOS Engineer to work with a key client on a 6 month initial contract.

  • *Inside IR35.
  • *This role will be mostly remote, with occasional visits to London.
  • *Candidates are required to hold active SC clearance, or be eligible for SC clearance. (Candidates should not have taken breaks of more than 28 consecutive days outside of the UK over the last 5 years.)

iOS Engineer

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 (or is SC eligible) 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 (e.g., 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 (e.g., 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

Desirable:

  • Experience working with GDS (Government Digital Service) standards
  • Familiarity with AI platforms and APIs (e.g., 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
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