Senior iOS Engineer — Build Secure, Global Mobile Apps

Experis; United Kingdom; On-site; GBP 60,000 - 90,000; Full time

Job summary

Experis in the United Kingdom is seeking a Senior iOS Developer to design, build and deliver high-quality iOS applications at scale. You will work across the full development lifecycle, from feature design to App Store release, collaborating with product, engineering and QA teams to ship secure, performant mobile experiences.

You should bring proven production-app experience, strong Swift and Objective-C skills, and familiarity with modern architectures (MVVM).

Qualifications

• Proven experience as an iOS Developer with shipped production apps.
• Strong knowledge of Swift, Objective-C, and the iOS SDK.
• Experience with modern iOS architectures (MVVM, Clean Architecture).
• Solid understanding of CS fundamentals, including algorithms and data structures.
• Knowledge of mobile security, performance optimization, and Apple HIG.
• Experience with Xcode, TestFlight, App Store Connect, Git, CI, Jira, and Confluence.
• A proactive, problem-solving mindset and ability to thrive in a fast-moving environment.

Responsibilities

• Design, develop, and deliver new features for iOS applications at global scale
• Lead the implementation of custom iOS features
• Collaborate with Product Managers, Tech Leads, and QA to plan, build, and ship features
• Ensure high standards of quality, performance, and security
• Debug, track, and resolve defects; contribute to L3 support when required
• Help drive innovation within the iOS platform and development practices

Skills

Swift

Objective-C

iOS SDK

MVVM

Tools

Xcode

TestFlight

App Store Connect

CI

Jira

Confluence

Git

Job description

Experis in the United Kingdom is seeking a Senior iOS Developer to design, build and deliver high-quality iOS applications at scale. You will work across the full development lifecycle, from feature design to App Store release, collaborating with product, engineering and QA teams to ship secure, performant mobile experiences.

You should bring proven production-app experience, strong Swift and Objective-C skills, and familiarity with modern architectures (MVVM).