Senior iOS Engineer Mexico

Senior iOS EngineerGaudaljara, MexicoContract
Role OverviewExecute Objective-C to Swift migrations, modernize testing frameworks, improve architecture, and deliver production-quality Flutter plugin implementations.
Experience• 5–8 years iOS development experience• Strong Objective-C and Swift expertise• Prior migration project experience
Responsibilities• Convert Objective-C implementations to Swift• Remove OCMock dependencies• Build protocol-based abstractions• Implement Dependency Injection patterns• Port unit tests to XCTest• Improve code coverage• Create integration and regression tests• Support code reviews and PR updates
Required Skills• Swift 5.9+• Objective-C• XCTest• Async/Await• Protocol-Oriented Programming• Dependency Injection• CocoaPods• Swift Package Manager• Git/GitHub workflows
Preferred Skills• Flutter plugin development• Open-source contribution experience• CI/CD automation• Static analysis and code quality tooling
Technical Deliverablesimage_picker_ios: Test backfill, DI implementation, Swift conversion, Documentation updatesgoogle_sign_in_ios: Nullability improvements, Swift conversion, Test modernization, Edge-case coverage
Success Metrics• Coverage maintained or improved• Green CI builds• No behavioral regressions• Successful PR merges
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