Senior Mobile Security Technical Specialist

End Date

Wednesday 21 October 2026

Salary Range

£84,051 - £93,390

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

Flexible Working Options

Hybrid Working, Job Share

Job Description Summary

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Job Description

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.

What you’ll be doing…

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.

Why Join us?

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

What we’re looking for?

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

And it would be great if you had any of the following...

Familiarity with mobile development practices

Experience with DevSecOps 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

This is a place for you…

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.

We also offer a wide-ranging benefits package, which includes…

A generous pension contribution of up to 15%

An annual bonus award, subject to Group performance

Share schemes including free shares

Benefits you can adapt to your lifestyle, such as discounted shopping

30 days’ holiday, with bank holidays on top

A range of wellbeing initiatives and generous parental leave policies

Ready for a career where you’ll learn and thrive? Apply today and find out more.

At Lloyds Banking Group, we're driven by a clear purpose; to help Britain prosper. Across the Group, our colleagues are focused on making a difference to customers, businesses and communities. With us you'll have a key role to play in shaping the financial services of the future, whilst the scale and reach of our Group means you'll have many opportunities to learn, grow and develop.

We keep your data safe. So, we'll only ever ask you to provide confidential or sensitive information once you have formally been invited along to an interview or accepted a verbal offer to join us which is when we run our background checks. We'll always explain what we need and why, with any request coming from a trusted Lloyds Banking Group person.

We're focused on creating a values-led culture and are committed to building a workforce which reflects the diversity of the customers and communities we serve. Together we’re building a truly inclusive workplace where all of our colleagues have the opportunity to make a real difference.