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iOS Developer

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Summary

iOS Developer in London building and maintaining customer-facing iOS apps with Swift/UIKit and MVVM, modernising Objective-C legacy code, integrating REST APIs, and writing XCTest tests, with CI/CD using Tuist, Xcodebuild, GitHub Actions, and CircleCI in a globally distributed team.

Key Responsibilities

  • Design, develop, test, and maintain high-quality iOS applications.
  • Build and improve customer-facing features using Swift and UIKit.
  • Work with MVVM, REST APIs, and modern iOS development practices.
  • Write clean, maintainable and performant code.
  • Investigate, troubleshoot, and resolve application defects.
  • Perform performance analysis and optimisation.
  • Work with existing Objective-C legacy code and progressively modernise it.
  • Develop unit and integration tests using XCTest/XCUITest.
  • Work with CI/CD and build tools including Tuist, Xcodebuild, GitHub Actions, and CircleCI.
  • Collaborate with globally distributed engineering and product teams.
  • Design solutions for open-ended technical problems and iterate rapidly despite ambiguity.
  • Contribute ideas that improve engineering practices, product quality, and user experience.

Required Skills & Experience

  • Experience with UIKit and iOS application architecture such as MVVM.
  • Experience integrating REST APIs/backend services.
  • Experience with unit and integration testing.
  • Experience troubleshooting bugs and improving application performance.
  • Experience working with Objective-C, including legacy codebases.
  • Understanding of CI/CD and continuous integration practices.
  • Experience with tools such as Tuist, Xcodebuild, GitHub Actions, or CircleCI.
  • Ability to work effectively in a small, collaborative, globally distributed team.
  • Strong problem-solving skills and ability to work independently.
  • Bachelor's degree in Computer Science or a related discipline, or equivalent practical experience.

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