Senior iOS Engineer: Build Secure, Global-Scale Apps

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

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.