Senior iOS App Developer – Mission-Critical System Integration

LumenWorks

Freelance · Remote · Flexible hours

About the role

LumenWorks is preparing a major iOS launch and needs to strengthen its test automation suite. The focus is on reducing regression risk by building robust, maintainable automated tests before the product goes live. You will work closely with QA leads and developers to design and implement the framework.

Key responsibilities

• Design and implement UI and unit test automation for existing iOS codebase
• Integrate automated tests into CI pipelines and ensure reliable execution
• Collaborate with developers to refactor flaky tests and improve coverage
• Document test strategies, best practices, and onboarding guides
• Provide mentorship on Swift testing patterns and tools

Must-have skills

• Strong proficiency in Swift and iOS development
• Extensive experience with XCTest, XCUITest, or similar frameworks
• Ability to work with REST APIs and mock network responses

Nice to have

• Familiarity with CI/CD tools like Bitrise or GitHub Actions
• Experience in performance testing and code coverage analysis