Senior iOS Security Engineer - Product Security & RASP

iProov; Greater London; On-site; GBP 90,000 - 150,000; Full time

Benefits offered by this job

Annual Leave 25 days

Growth Shares

Pension and Cycle to Work

Share Options

Nursery Benefit

Life Assurance

SmartHealth

Training budgets

Hybrid working

Well-being perks

Job summary

iProov is seeking an experienced Senior iOS Security Engineer to join our Product Security team in the UK. You will secure iOS apps, SDKs and biometric verification tech against evolving threats.

You will research, design, and implement advanced protections focused on app hardening, RASP, and runtime trust. Collaborate with Science and Engineering teams to embed security across the lifecycle.

Qualifications

• 3+ years of professional iOS development experience.
• 2+ years of experience in mobile security, application security, or product security.
• Proven experience designing and implementing security controls for production mobile applications or SDKs.

Responsibilities

• Design and implement security controls for iOS applications and SDKs.
• Develop protections against reverse engineering, runtime manipulation, code injection, dynamic instrumentation, and application tampering.
• Implement and enhance jailbreak detection, application integrity validation, and runtime protection mechanisms.
• Design secure approaches for protecting sensitive data, cryptographic assets, and biometric-related workflows.
• Define and promote mobile security best practices across engineering teams.
• Research emerging mobile attack techniques targeting biometric identity verification systems, including runtime manipulation and device compromise.
• Evaluate, prototype, and implement RASP controls for iOS applications and SDKs.
• Assess the effectiveness of protection technologies against evolving threats.
• Develop novel approaches to application integrity and anti-tampering controls.
• Investigate bypass techniques used by attackers to identify gaps in protections.
• Be a key member of the Product Security function across teams to enhance controls for biometric products.
• Contribute to the security roadmap by strengthening trust signals in biometric workflows.
• Produce technical research, proofs-of-concept, and recommendations based on threat trends.

Skills

Swift

iOS architecture

Entitlements

App lifecycle

Memory management

Mach-O binaries

Apple Security Frameworks

Cryptography

RASP

Anti-tampering

Anti-debugging

Certificate pinning

Frida

Objection

Dynamic instrumentation

Jailbreak environments

Runtime hooking

Education

Tools

Frida

Objection

Dynamic instrumentation

Job description

iProov is seeking an experienced Senior iOS Security Engineer to join our Product Security team in the UK. You will secure iOS apps, SDKs and biometric verification tech against evolving threats.

You will research, design, and implement advanced protections focused on app hardening, RASP, and runtime trust. Collaborate with Science and Engineering teams to embed security across the lifecycle.