Senior iOS Developer – SwiftUI (Contract)

About the role

We are looking for a Senior iOS Developer with deep SwiftUI expertise to join a London‑based client on a contract basis. You will help migrate existing UIKit applications to SwiftUI, write robust test cases and participate in live debugging sessions.

Key responsibilities

• Develop high‑quality iOS applications using SwiftUI and UIKit.
• Participate in screen‑share debugging interviews and write test cases with Mockito.
• Collaborate with cross‑functional teams to deliver full‑life‑cycle software, from design to deployment.
• Maintain and enhance existing codebases while supporting the migration to SwiftUI.
• Contribute to continuous improvement of engineering practices and DevOps pipelines.

Required profile

• Minimum eight years of professional iOS development experience.
• Strong hands‑on knowledge of SwiftUI, Objective‑C and UIKit.
• Proven ability to work with lead engineers, architects and business analysts.
• Experience with test‑driven development (TDD/BDD) and modern DevOps practices.

Required skills

• SwiftUI
• Objective‑C
• UIKit
• Xcode
• GitLab / SourceTree
• Mockito
• TDD / BDD
• DevOps
• Datastores
• HTTP client/server architecture

What we offer

• Contract role at £300 per day (inside IR35).
• On‑site work in London with a dynamic engineering team.
• Opportunity to lead a migration from UIKit to SwiftUI.