Senior iOS Engineer — Build Secure, Global-Scale Apps

Experis; Warrington; On-site; GBP 70,000 - 95,000; Full time

Job summary

Experis is seeking a Senior iOS Developer to join a leading cyber software client and help build secure iOS applications. You will be hands-on across the full lifecycle, from feature design to App Store release, collaborating with product, engineering, and QA teams to deliver high-quality mobile experiences.

You will design, develop, and ship new features at global scale, lead custom iOS feature implementations, and ensure performance and security.

Qualifications

• Proven iOS developer with shipped production apps and strong Swift knowledge.
• Experience with iOS architectures (MVVM, Clean Architecture) and security considerations.
• Solid CS fundamentals and performance optimization understanding.

Responsibilities

• Design, develop, and deliver new features for iOS applications at global scale.
• Lead the implementation of custom iOS features and ensure quality.
• Collaborate with Product, Tech Leads, and QA to plan, build, and ship features.
• Debug, resolve defects, and contribute to L3 support when needed.
• Drive innovation within the iOS platform and development practices.

Skills

Swift

iOS

MVVM

Security

CI/CD

Xcode

Git

Tools

TestFlight

App Store Connect

Jira

Confluence

Job description

Experis is seeking a Senior iOS Developer to join a leading cyber software client and help build secure iOS applications. You will be hands-on across the full lifecycle, from feature design to App Store release, collaborating with product, engineering, and QA teams to deliver high-quality mobile experiences.

You will design, develop, and ship new features at global scale, lead custom iOS feature implementations, and ensure performance and security.