Senior iOS Engineer: Build Secure Global Apps

Experis

Portsmouth

On-site

GBP 75,000 - 110,000

Full time

8 days ago

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Job summary

Experis is seeking a Senior iOS Developer to join a leading cyber software client to build and evolve iOS applications.

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

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

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 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