Senior iOS Engineer — Build Secure Global Apps

Experis; Normanton on Trent; On-site; GBP 75,000 - 110,000; Full time

Job summary

Experis is seeking a Senior iOS Developer to join a leading cyber software client to build secure iOS apps at global scale. You will work across the full development lifecycle from design to App Store deployment.

You’ll collaborate with product, engineering, and QA teams to deliver high‑quality mobile experiences, implement MVVM and Clean Architecture, and uphold security and performance standards.

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.

Responsibilities

• Design, develop, and deliver new features in 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.
• Drive innovation within the iOS platform and development practices.

Skills

iOS development

Swift

Objective‑C

MVVM

Clean Architecture

CS fundamentals

Mobile security

Performance optimization

Apple HIG

Tools

Xcode

TestFlight

App Store Connect

Git

CI

Jira

Confluence

Job description

Experis is seeking a Senior iOS Developer to join a leading cyber software client to build secure iOS apps at global scale. You will work across the full development lifecycle from design to App Store deployment.

You’ll collaborate with product, engineering, and QA teams to deliver high‑quality mobile experiences, implement MVVM and Clean Architecture, and uphold security and performance standards.