Senior iOS Software Engineer - £400 Inside IR35

Senior iOS Software Engineer

£400 per day | Inside IR35
Contract: 12 months
Hybrid: 1-2 days per week on-site in Salford

We're looking for a Senior iOS Software Engineer to join a high-performing mobile engineering team working on core media playback components used at scale. This role is hands-on and suited to someone with strong iOS fundamentals, a testing-first mindset, and experience modernising large codebases.

You'll play a key role in evolving a complex iOS platform, including the migration to a more scalable architecture using Swift Package Manager.

What you'll be doing

• Developing and maintaining core iOS components using Swift and Objective-C

• Working on shared libraries and packages that support large-scale mobile applications

• Leading and contributing to migrations from CocoaPods to Swift Package Manager (SPM)

• Writing high-quality, testable code with a strong focus on TDD

• Building and maintaining comprehensive unit test coverage

• Collaborating closely with other engineers in a mature, delivery-focused team

Essential experience (must be recent - last 12 months or last project)

• Strong commercial experience with Swift and Objective-C

• Proven hands-on experience using Swift Package Manager (SPM)

• Experience migrating large or complex iOS projects from CocoaPods to SPM

• Strong experience with Test-Driven Development (TDD)

• Writing and maintaining high-quality unit tests

• Experience working on complex, production-scale iOS codebases

Contract details

• Rate: £400 per day (Inside IR35)

• Location: Salford (1-2 days per week on-site)

• Duration: 12 months

• Level: Senior