Senior Mobile Security Technical Specialist

Wednesday 21 October 2026

£84,051 - £93,390

We support flexible working –  for more information on flexible working options

Hybrid Working, Job Share

JOB TITLE: Senior Mobile Security Technical Specialist

SALARY: £72,702 - £80,780 (Bristol) £84,051 - £93,390 (London)

LOCATION: Bristol / London

HOURS: Full-time (35 Hours)

WORKING PATTERN: Our work style is hybrid, which involves spending at least two days per week, or 40% of our time, at one of our office sites. Colleagues with disabilities can be supported with workplace adjustments including hybrid working expectations in line with our Flexibility Works policy.

Join Lloyds Banking Group’s Digital Platform team and play a pivotal role in shaping the security of mobile applications used by millions of customers across Lloyds Bank, Halifax, Bank of Scotland and Scottish Widows. You’ll help design, build and enhance a world-class mobile security framework, leading threat modelling, security assessments, penetration testing capabilities and security tooling across Android and iOS platforms.

Working within agile teams, you’ll drive continuous improvements to our mobile security posture through research, consultancy, collaboration and innovation, helping protect customer services while enabling the delivery of new features and digital experiences.

If you think all banks are the same, you’re wrong. We’re a pioneering, fast-changing business that’s shaping finance as a force for good. If you’re after a role where you can have an impact and do the best work of your career, you’ve just found it

• Experience of mobile platform security, threat modelling and mitigation techniques
• Strong hands‑on experience conducting reviews of mobile application security posture
• Experience developing and maintaining penetration testing tools, scripts, policies and procedures
• In‑depth knowledge of Android and iOS application security standards
• Experience driving security improvements across mobile platforms
• Ability to define and deliver mobile security frameworks and associated security services
• Passion for mobile application security and protecting customer-facing services

• Familiarity with mobile development practices
• Experience with Dev Sec Ops  tooling
• Knowledge of testing and automation frameworks
• Deep experience using mobile security tools
  
  Strong understanding of authentication, authorisation, encryption and cryptography patterns
• Experience proactively researching emerging technologies and security threats

Our ambition is to be the leading UK business for diversity, equity and inclusion, supporting our customers, colleagues and communities. We are committed to creating an environment in which everyone can thrive, learn and develop. We were one of the first major organisations to set goals on diversity in senior roles, create a menopause health package, and launch a dedicated Working with Cancer initiative.

We offer reasonable workplace adjustments for colleagues with disabilities, including flexibility in office attendance, location and working patterns. As a Disability Confident Leader, we guarantee interviews for a fair and proportionate number of applicants who meet the minimum criteria for the role and have a disability, long-term health or neurodivergent condition, through the Disability Confident Scheme. We provide reasonable adjustments throughout the recruitment process to reduce or remove barriers - just let us know what you need.

• A generous pension contribution of up to 15%
• An annual bonus…