Senior iOS Security Engineer – ProdSec

iProov

iOS Security Engineer focusing on mobile security for biometric applications at iProov. Collaborating with teams to design and implement security controls and innovate defenses against threats.

Posted 7/20/2026full-timeLondon • 🇬🇧 United KingdomSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing and implementing security controls for iOS applications, with a strong focus on Runtime Application Self-Protection (RASP), application integrity validation, and anti-tampering mechanisms. Proficient in mobile security best practices and cryptographic techniques to safeguard sensitive data and biometric workflows.

Highest-signal resume keywords

IOS DevelopmentMobile SecuritySwift ProgrammingRuntime Application Self-Protection (RASP)OWASP Mobile Top 10

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

IOS DevelopmentMobile SecuritySwift ProgrammingApplication HardeningAnti-Tampering ProtectionsAnti-Debugging MechanismsCertificate PinningApplication Integrity ValidationCryptographySecure Communications

Tools & Technologies

FridaObjectionDynamic Instrumentation FrameworksJailbreak EnvironmentsRuntime Hooking Methodologies

Industry Keywords

Application SecurityProduct SecuritySecure SDLC PracticesMobile Attack TechniquesApple Security Frameworks

Tech Stack

Tools & technologies

iOSSDLCSwift

About the role

Key responsibilities & impact

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, device compromise, and application abuse.
Evaluate, prototype, and implement Runtime Application Self-Protection (RASP) controls for iOS applications and SDKs.
Assess the effectiveness of commercial and custom mobile protection technologies against evolving threats.
Develop novel approaches to application integrity, runtime trust assessment, anti-tampering, anti-debugging, and anti-instrumentation controls.
Investigate bypass techniques used by attackers and security researchers to identify gaps in existing protections.
Perform security architecture reviews and code reviews.
Assess security implications of new platform capabilities, third-party libraries, and architectural changes.
Build security tooling, frameworks, and libraries that improve the security posture of iOS products.
Contribute to security standards, design patterns, and technical guidance for mobile development teams.
Participate in strategic security initiatives and long-term product security planning.

Requirements

What you’ll need

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.
Expert-level proficiency in Swift.
Deep understanding of: iOS architecture and internals, Entitlements, Application lifecycle, Memory management, Mach-O binaries, Apple Security Frameworks.
Knowledge of cryptography, secure communications, and authentication mechanisms.
Experience designing or implementing: Runtime Application Self-Protection (RASP), Application hardening controls, Anti-tampering protections, Anti-debugging mechanisms, Certificate pinning, Application integrity validation.
Strong understanding of: OWASP Mobile Top 10, OWASP MASVS, Secure SDLC practices, Mobile attack techniques and adversarial behavior.
Knowledge of: Frida, Objection, Dynamic instrumentation frameworks, Jailbreak environments, Runtime hooking methodologies.

Benefits

Comp & perks

25 days Annual Leave, plus 8 Bank Holidays (more holiday with service - up to an extra 5 days off per year based on your continuous service)
Growth Shares allocated after passing probation (6 months of service)
Salary sacrifice schemes including: Pension, Cycle To Work and Electric Car Scheme
Nursery Sacrifice Scheme
Work Overseas Perk - Work globally for up to 2 weeks
Life Assurance
SmartHealth - Access to private GP, Psychologist, Nutritionist along with tailored fitness plans for both you and your family
Benefit from personalized 1:1 career coaching with our in-house Occupational Psychologist
Award winning L&D platform with personal allocated training budgets
Enhanced paid family leave
Pension - 5% employee, 3% employer
Flexible hybrid working environment
Free Barista Coffee/Tea, biscuits with fruit in the WeWork office
Free access to WeWork discounts and free online well-being sessions
Vitality Health - a range of options available on this below
The Vitality Programme includes a number of reward benefits that all employees have access to as part of the plan, for example: Private Health cover including Dental, Optical, and Audiology
50% off monthly gym memberships
Apple watches significantly discounted based on member vitality status
Half price trainers with Runners Need
Weekly rewards – Free coffee with Café Nero
Monthly rewards – Free Cinema ticket
Discounts on travel with Expedia (hotels) and Mr & Mrs Smith with discounts getting greater throughout the year based on a member's vitality status
Amazon prime free months based on activity
Up to 25% cashback at Waitrose when buying healthy foods
75% off stays at Champneys Health Spas
Allen Carr’s £299 no smoking programme for free
Access to Vitality Healthy Mind with 30% off Headspace subscriptions and the ability to earn Vitality points for using Buddhify, Calm and Headspace
Discounts on Weight Watchers
50%-80% off Comprehensive Private Health screenings