iOS Engineer: Swift, MVVM, SDKs & Testing

Insight International (UK) Ltd; England; On-site; GBP 70,000 - 100,000; Full time

Job summary

Insight International (UK) Ltd is seeking an experienced iOS developer to lead the development of scalable, production-grade applications. You will work across teams to implement modular MVVM architectures, build and document SDKs, and ensure robust concurrency handling for high-performance apps.

You will champion engineering quality through practices like Pair Programming, TDD, code reviews, CI, and automated testing, while collaborating with other engineers to reduce waste and improve

Qualifications

• Strong Swift programming for iOS with modern toolsets (Xcode, Git, GitHub, XCTest, XCUITest).
• Modular app architecture with MVVM and frameworks-based modularisation.
• Experience building, maintaining, and documenting SDKs for cross-team consumption.
• Solid concurrency knowledge (async/await, GCD, Operations) for high-performance apps.
• Proven track record delivering production-scale iOS applications.
• Excellent communication and collaboration across engineering teams to improve reusability and reduce waste.
• Advocate for engineering quality using PairProgramming, TDD, Code Reviews, CI, and automated testing.

Skills

Swift programming

iOS architecture MVVM

SDK development

Concurrency and async

High-quality production apps

Cross-team collaboration

Pair Programming and TDD

Tools

Xcode

Git

GitHub

XCTest

XCUITest

Job description

Insight International (UK) Ltd is seeking an experienced iOS developer to lead the development of scalable, production-grade applications. You will work across teams to implement modular MVVM architectures, build and document SDKs, and ensure robust concurrency handling for high-performance apps.

You will champion engineering quality through practices like Pair Programming, TDD, code reviews, CI, and automated testing, while collaborating with other engineers to reduce waste and improve