Find a job 
Featured Companies 
Featured Universities 
For Companies At a Glance
- Tasks: Conduct advanced mobile security assessments and simulate real-world attack scenarios.
- Company: Innovative UK tech company leading in digital identity and biometric security.
- Benefits: Competitive salary, hybrid working, and opportunities for professional growth.
- Other info: Mentorship opportunities and a collaborative environment focused on innovation.
- Why this job: Join a dynamic team to tackle cutting-edge mobile security challenges and make a real impact.
- Qualifications: 4+ years in offensive security with expertise in mobile application security.
The predicted salary is between 65000 - 75000 £ per year.
We're working with an innovative UK technology company operating at the forefront of digital identity and biometric security. As their security function continues to grow, they're looking to appoint an experienced Offensive Security Engineer with a strong focus on mobile application security.
The Opportunity: You'll take ownership of sophisticated red team and mobile security assessments across iOS and Android environments, simulating real-world attack scenarios to identify vulnerabilities before they can be exploited. The role combines hands-on offensive testing, exploit development, research into emerging threats, and close collaboration with engineering teams to ensure vulnerabilities are remediated effectively. This position would suit someone who enjoys reverse engineering, breaking mobile protections, and staying ahead of evolving threats in areas such as biometrics, authentication, and device compromise.
Key Responsibilities:
- Conduct advanced mobile application penetration testing across iOS and Android
- Perform reverse engineering, runtime manipulation, and instrumentation attacks
- Simulate realistic adversarial scenarios including:
- Rooted and jailbroken devices
- Emulator and Frida-based attacks
- Certificate pinning bypass
- Session manipulation and API abuse
- Biometric spoofing and presentation attacks
About You:
You will have strong experience in offensive security, penetration testing, or mobile security research, with a genuine passion for understanding how complex systems can be attacked and improved.
Essential Experience:
- 4+ years in Red Teaming, Penetration Testing, or Mobile Security
- Deep expertise in Android and/or iOS application security
- Strong experience with tools such as:
- Frida
- Ghidra
- Hopper
- IDA Pro
- Burp Suite
- Android and iOS security models
- Secure storage (Keychain / Keystore)
- Cryptographic implementations
- OAuth and authentication protocols
Desirable:
- Experience with biometric systems and identity verification technologies
- Security research background
- Contributions to open-source tooling or vulnerability research
- Exposure to threat modelling and secure architecture reviews
If this sounds like you, apply now or reach out directly.
Offensive Security Engineer (Mobile) employer: Oscar Associates (UK) Limited
Contact Detail:
Oscar Associates (UK) Limited Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Offensive Security Engineer (Mobile)
✨Tip Number 1
Network like a pro! Get out there and connect with folks in the industry. Attend meetups, webinars, or conferences related to mobile security. You never know who might have the inside scoop on job openings or can refer you directly.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your projects, especially any offensive security assessments you've done. This is your chance to demonstrate your expertise in mobile app security and make a lasting impression.
✨Tip Number 3
Prepare for interviews by simulating real-world scenarios. Practice explaining your thought process when tackling mobile security challenges. This will not only boost your confidence but also show potential employers that you can think on your feet.
✨Tip Number 4
Don’t forget to apply through our website! We’ve got some fantastic opportunities waiting for you. Plus, it’s a great way to ensure your application gets the attention it deserves from our team.
We think you need these skills to ace Offensive Security Engineer (Mobile)
Some tips for your application 🫡
Tailor Your CV: Make sure your CV highlights your experience in offensive security and mobile application security. We want to see how your skills align with the role, so don’t be shy about showcasing your relevant projects and achievements!
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you’re passionate about mobile security and how your background makes you a perfect fit for our team. We love hearing personal stories that connect your experience to the role.
Showcase Your Technical Skills: Don’t forget to mention the tools and techniques you’re familiar with, like Frida or Burp Suite. We’re looking for someone who can hit the ground running, so let us know how you’ve used these in past roles or projects.
Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it shows you’re keen on joining our innovative team!
How to prepare for a job interview at Oscar Associates (UK) Limited
✨Know Your Tools Inside Out
Make sure you're well-versed in the tools mentioned in the job description, like Frida, Ghidra, and Burp Suite. Familiarity with these tools will not only help you answer technical questions but also demonstrate your hands-on experience.
✨Showcase Your Problem-Solving Skills
Prepare to discuss specific scenarios where you've identified vulnerabilities or developed exploits. Use the STAR method (Situation, Task, Action, Result) to structure your answers and highlight your analytical thinking.
✨Stay Updated on Emerging Threats
Research the latest trends in mobile security and be ready to discuss them. Showing that you’re proactive about learning and adapting to new threats will impress interviewers and show your passion for the field.
✨Communicate Clearly and Effectively
Practice explaining complex concepts in simple terms. Since you'll need to collaborate with engineering teams, being able to communicate your findings clearly is crucial. Consider doing mock interviews to refine this skill.