Senior iOS Developer

Experis; South Shields; On-site; GBP 70,000 - 110,000; Full time

Job summary

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

You will design, develop, and ship new iOS features, lead custom iOS work, and drive innovation in architecture and best practices while maintaining strict security and performance standards.

Qualifications

• Proven experience as an iOS Developer with shipped production apps.
• Experience with modern iOS architectures (MVVM, Clean Architecture).
• Knowledge of iOS SDK and Apple HIG guidance.
• Strong understanding of computer science fundamentals.

Responsibilities

• Design, develop, and deliver new features 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 Architecture

CS Fundamentals

Security Best Practices

Performance Optimization

Proactive Problem Solving

Tools

Xcode

TestFlight

App Store Connect

Git

Jira

Confluence

CI

Job description

Senior iOS Developer

The Role

We’re looking for a Senior iOS Developer to join a leading cyber software client of ours to help build and evolve their iOS applications.

You’ll be a hands‑on engineer, working across the full development lifecycle—from early feature design through to App Store release—collaborating closely with product, engineering, and QA teams to deliver secure, high‑quality mobile experiences.

What You’ll Do

• Design, develop, and deliver new features 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

What You’ll Bring

• 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 (e.g. 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

Why Join?

• Build security‑focused products used by millions of users
• Work on complex, high‑impact mobile technology
• Collaborate with experienced engineers and product leaders
• Make a real difference in a growing, innovative company

Ready to build secure iOS apps that operate at global scale? We’d love to hear from you.