At a Glance
- Tasks: Secure iOS applications and biometric technologies against evolving threats.
- Company: Join iProov, a leader in biometric identity assurance with a diverse culture.
- Benefits: Enjoy 25 days leave, growth shares, flexible working, and health perks.
- Other info: Collaborate with innovative teams in a dynamic, supportive environment.
- Why this job: Make a real impact in mobile security and protect users globally.
- Qualifications: 3+ years iOS development and 2+ years in mobile security required.
The predicted salary is between 70000 - 90000 £ per year.
Senior i OS Security Engineer
About i Proov i Proov provides science-based biometric solutions that enable the world’s most security-conscious organizations to streamline secure remote onboarding and authentication for digital and physical access.
Our award-winning liveness technology and i SOC offer unmatched resilience against deepfakes and generative AI threats while ensuring effortless, scalable user experiences.
Trusted by leading governments and enterprises, including the U.
Department of Homeland Security, U.
Home Office, Gov Tech Singapore, ING, and UBS, i Proov sets the standard in biometric identity assurance.
This global trust is built not only on our technology but on the strength of the people behind it.
For us, diversity at i Proov is about reflecting the customers we serve, holding the principles of equality and inclusion at the heart of everything we do and all that we stand for, embracing differences, creating possibilities, and growing together.
We aim to foster a culture where individuals of all backgrounds feel confident in bringing their whole selves to work, feel included, and their talents are nurtured, empowering them to contribute fully to our purpose.
The Role
Reports to
Head of Red Team
Location
Comp
Negotiable (Base) + Company Performance Bonus (10%) + Share Options + UK i Proov Benefits
We are seeking an i OS Security Engineer to join our Product Security team and help secure our i OS applications, SDKs, and biometric verification technologies against evolving threats.
This role focuses on researching, designing, and implementing advanced mobile security protections, with a particular emphasis on application hardening, Runtime Application Self-Protection (RASP), anti-tampering controls, and runtime trust assessment.
You will play a key role in identifying emerging attack techniques targeting mobile and biometric ecosystems and developing innovative defenses to protect our products and customers.
The successful candidate combines deep i OS engineering expertise with a security mindset and a passion for understanding how attackers operate.
They will work closely with Science and Engineering teams to ensure security is embedded throughout the product lifecycle.
- How you can make an impact
- Mobile Security Architecture & Hardening
- Design and implement security controls for i OS 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.
- Mobile Security Research & RASP Innovation
- 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 i OS 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.
- Be a key member of the Product Security function, collaborating with Science, Red Team and Engineering teams to evaluate, develop, and enhance security controls for biometric verification products and services.
- Contribute to the security roadmap by identifying opportunities to strengthen trust signals within biometric verification workflows.
- Produce technical research, proof-of-concepts, and recommendations based on threat trends affecting digital identity and biometric ecosystems.
- Security Reviews & Engineering
- 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 i OS products.
- Support secure software development lifecycle (SSDLC) initiatives.
- Contribute to security standards, design patterns, and technical guidance for mobile development teams.
- Participate in strategic security initiatives and long-term product security planning.
- What we would like to see from you
Experience
- 3+ years of professional i OS 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.
- Technical Skills
- Expert-level proficiency in Swift
• Deep understanding of
- i OS architecture and internals
- Entitlements
- Application lifecycle
- Memory management
- Mach-O binaries
- Apple Security Frameworks
- Knowledge of cryptography, secure communications, and authentication mechanisms.
- Security Expertise
• 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 behaviour
• Knowledge of
- Frida
- Objection
- Dynamic instrumentation frameworks
- Jailbreak environments
- Runtime hooking methodologies
- Nice-to-haves
The ideal candidate brings experience with biometric authentication or identity verification technologies, along with a background in securing mobile SDKs deployed within third-party applications.
They will have developed custom RASP (runtime application self-protection) capabilities and have solid knowledge of device attestation and trust assessment technologies.
Benefits
- 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
- Smart Health - 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 We Work office
- Free access to We Work 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 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 members 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
- Our Culture & Recruitment Process
At i Proov, we're incredibly proud of the culture we've carefully curated.
Our culture enables diverse thought, curiosity and innovation.
Our team strives to do everything to the highest standard possible to achieve the remarkable.
To do that we need different perspectives, experiences and ideas alongside an environment where these are welcomed - we want everyone to feel confident in bringing their full capabilities to work.
We firmly believe psychological safety is key to building and nurturing great teams.
We’re a small and dynamic company, that means having the right skills is important, and we know that our best work emerges when people feel secure, welcomed and respected.
As an equal opportunities employer, we encourage applications from people of all backgrounds.
We’re committed to building a workforce that is representative of the people we serve.
We will not put someone at a disadvantage or treat them less favourably because of race, color, national origin, ancestry, age, disability, creed, religion or belief, sex, sexual orientation, gender reassignment, marriage or civil partnership, or pregnancy and maternity.
Our goal is to find people who are passionate about creating a safer, more secure world.
Our recruitment process is designed to be fair and transparent, focusing solely on your qualifications, competence, and suitability for the role.
We review all applications carefully and will be in touch with shortlisted candidates regarding the next steps in our interview process.
If you need an adjustment for a disability or any other reason during the hiring process, please send a request to careers@iproov. com
Senior iOS Security Engineer (ProdSec) in London employer: iProov
iProov is an exceptional employer that champions diversity and inclusion, creating a supportive environment where every employee can thrive. With a hybrid work model based in the vibrant WeWork Waterloo in London, employees enjoy flexible working arrangements alongside competitive benefits, including a performance bonus and share options. The company prioritises personal growth and innovation, empowering its team to make meaningful contributions to cutting-edge biometric solutions that enhance security for clients worldwide.
StudySmarter Expert Advice🤫
We think this is how you could land Senior iOS Security Engineer (ProdSec) in London
✨Get Involved in the Cybersecurity Community
Diving into the cybersecurity community is key for landing that full-time gig. Join forums like Reddit's r/cybersecurity or attend local meetups to connect with industry veterans and other job seekers. Networking is everything in this field—don’t just be a passive lurker!
✨Show Off Your Skills with Capture the Flag Competitions
Participate in Capture the Flag (CTF) competitions; these are not just a fun way to boost your skills but also a chance to showcase your talent to potential employers. Many companies, including iProov, love seeing candidates who actively engage in these challenges.
✨Tailor Your Online Presence
Make sure your LinkedIn and any professional profiles reflect your cybersecurity expertise. Share your projects, whether they’re personal or from a previous role, to catch the eye of hiring managers. This is how they’ll find your passion and commitment to the field!
✨Apply Directly Through iProov
Don’t forget to head straight to our website and check out any openings for cybersecurity roles at iProov. Applying directly can sometimes give you an edge, especially if you can mention that you've been following our work or engaging in the community.
We think you need these skills to ace Senior iOS Security Engineer (ProdSec) in London
Some tips for your application 🫡
Show off your technical skills:In cybersecurity, it's crucial to highlight your technical prowess. Make sure your CV showcases specific skills like network security, penetration testing, or threat analysis. If you have relevant certifications (like CEH or CISSP), pop those on the front page to grab attention!
Tailor your portfolio for the role:Even for a full-time role, a portfolio can set you apart. If you've worked on any cybersecurity projects—be it CTF challenges, security assessments, or research papers—include these in your application. This demonstrates not just your skills, but also your hands-on experience!
Use real-world examples:When writing your cover letter, don’t just stick to your qualifications. Share real-world examples of how you’ve tackled security issues or vulnerabilities. This gives the hiring team at iProov insight into your practical problem-solving abilities and makes your application memorable.
Demonstrate your passion for cybersecurity:Cybersecurity is an ever-evolving field, so show us that you’re always learning! Mention any recent courses, webinars, or industry events you’ve attended. This not only exhibits your enthusiasm but also signals to iProov that you’re committed to staying ahead in the game.
How to prepare for a job interview at iProov
✨Sharpen Your Technical Skills
For a role in cybersecurity, it’s essential to be up-to-date with the latest tools and techniques. Brush up on your knowledge of firewalls, intrusion detection systems, and vulnerability assessment tools. Be ready to discuss specific scenarios where you’ve applied these skills, as hands-on experience can really set us apart in interviews.
✨Prepare for Scenario-Based Questions
Expect the interviewers at iProov to throw in some hypothetical situations to see how you’d handle them. Think about common security breaches or incidents and be prepared to explain how you would respond. This not only shows your problem-solving skills but also your understanding of real-world cybersecurity challenges.
✨Highlight Your Certifications
Certifications like CompTIA Security+, CISSP, or CEH can give you a significant edge in a full-time role in cybersecurity. Make sure to mention these during your interview and be prepared to discuss what you learned through those certifications and how they relate to the position at iProov.
✨Show Your Passion for Cybersecurity
Since you’re going for a full-time gig, showing genuine enthusiasm for the field can make all the difference. Share any personal projects, blogs, or communities you’re part of that relate to cybersecurity. This not only showcases your passion but also your commitment to staying engaged in this ever-evolving field.
