IOS Engineer

Role: iOS Engineer

Rate: £275 - £350/Day

Location: LONDON - Hybrid 3 days/week in office

** Please note you must live in the UK with FULL RIGHT TO WORK- SPONSORSHIP IS NOT PROVIDED **

Role Overview

We’re looking for an iOS Engineer experienced in building high‑quality, scalable features for large consumer mobile applications. The ideal candidate is strong in Swift, modern iOS UI frameworks, clean architecture patterns, and automated testing.

Key Responsibilities

Develop iOS features using Swift, UIKit, and SwiftUI
Implement MVVM and functional/reactive patterns across a modular codebase
Write and maintain automated tests including unit, integration, and UI tests (XCTest, XCUITest)
Collaborate with designers to deliver pixel‑perfect UI and smooth animations
Integrate with backend services and ensure reliability, performance, and error handling
Participate in code reviews, pair programming, and engineering quality practices
Contribute to CI/CD pipelines using tools like GitHub Actions, CircleCI, and SPM 

Core Skills

Swift (advanced)
UIKit and SwiftUI
MVVM, functional‑core/imperative‑shell, reactive patterns
XCTest and XCUITest
SPM, Tuist, dependency management
CI/CD tooling and automation
REST API integration
Debugging and performance optimisation 

Nice‑to‑Have Skills

Combine or RxSwift
Objective‑C for legacy modules
Large‑scale enterprise app experience
Open source contribution

Job Title: IOS Engineer

Location: London, UK

Job Type: Contract

Trading as TEKsystems. Allegis Group Limited, Maxis 2, Western Road, Bracknell, RG12 1RT, United Kingdom. No. (phone number removed). Allegis Group Limited operates as an Employment Business and Employment Agency as set out in the Conduct of Employment Agencies and Employment Businesses Regulations 2003. TEKsystems is a company within the Allegis Group network of companies (collectively referred to as "Allegis Group"). Aerotek, Aston Carter, EASi, Talentis Solutions, TEKsystems, Stamford Consultants and The Stamford Group are Allegis Group brands. If you apply, your personal data will be processed as described in the Allegis Group Online Privacy Notice available at (url removed)>
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