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Senior Mobile Security Developer - Contract (Inside IR35)

London, UK💼 Contract🗓 2026-09-19 → 2026-09-23

Core

Define squad-level technical architecture and drive security for mobile platforms, ensuring quality, security, and compliance across full-stack mobile systems.

Role type

Senior Mobile Security Developer (Inside IR35)

Builds

World-class security frameworks, mobile penetration testing services, and secure technical approaches for client digital products.

Domain

Mobile Security / Cybersecurity

Required skills

Mobile security architecture, mobile penetration testing, threat modeling, authentication & cryptography, secure design principles, security problem solving

Preferred skills

Reverse engineering, DevSecOps tooling, mobile development (Android/iOS), security research, cloud security

Technologies

Burp Suite Pro, Frida, Objection, JADX, IDA Pro, Hopper, Radare, ADB, Apktool, YARA, Xcode, Android Studio, C, Java, Kotlin, Objective-C, Swift, JavaScript, Python, Bash, ARM/ARM64 assembly

Responsibilities

Lead design and delivery of security services including mobile penetration testing and advisory engagements; Define secure technical approaches and develop threat models; Translate business objectives into technical strategy; Drive adoption of Agile methodologies; Communicate risk-based security recommendations to clients; Improve security practices and tooling

Seniority

Senior, hands-on IC

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