Mobile Security Engineer (AppSec) – 12–Month Contract – Inside IR35 – Hybrid (London or Bristol, 3 days onsite)
We are seeking Mobile Application Security Engineers to join a leading UK retail and commercial banking organisation on a 12–month hybrid contract based in London or Bristol (3 days on–site). The team is accountable for security within the mobile channel, providing a suite of mobile security components and associated services (penetration testing, obfuscation, consultancy). The mission is a scalable, proactive approach to securing the bank's mobile apps so engineers can operate with confidence in an evolving threat landscape. You will help build, deliver, and drive the security of the mobile platform, including the design and delivery of a world–class security framework.
Key Responsibilities
- Design and deliver a security framework for the mobile platform and associated services (penetration testing, research, consultancy)
- Conduct regular hands–on reviews of mobile application security posture
- Apply threat modelling and mitigation techniques across the mobile channel
- Develop and maintain pen–testing security tools, scripts, policies, and procedures
- Research emerging technologies and threats in the security landscape
What You Will Ideally Bring
- 6+ years' experience in mobile platform security
- In–depth knowledge of mobile app security standards (Android/iOS)
- Threat modelling and mitigation techniques
- Hands–on penetration testing tooling, Scripting, and procedures
- Experience using mobile security tools
- Understanding of authentication, authorisation, encryption, and cryptography patterns desirable
- Familiarity with mobile development, DevSecOps tooling, and testing/automation frameworks desirable
- Proactive research mindset on new security technologies
Contract Details
- Duration: 12 months
- Day Rate: GBP450
- Determination: Inside IR35
- Location: Hybrid, 3 days per week onsite, London/Bristol
- Start Date: ASAP
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Mobile Security Engineer (AppSec) - 12-Month Contract - Inside IR35 - in City of London employer: Hamilton Barnes
Hamilton Barnes is an exceptional employer for those passionate about live sports broadcasting, offering a dynamic work environment that thrives on teamwork and innovation. With opportunities for professional growth and development in cutting-edge technology, employees enjoy a supportive culture that values their contributions, all while being part of the excitement surrounding Premier League matchday coverage. The shift-based nature of the role allows for flexibility, and the potential for overtime ensures that hard work is rewarded.
