Cyber Security Ops. Specialist

Recruiter:
Lloyd Hughes Hiring Manager:
Ben Bryce Career Grade: DInternal Closing Date: 4th November 2026

Due to the sensitive nature of this role, you will be required to undergo DV (Developed Vetting) level Security Clearance (. An allowance of 5k per annum may be payable monthly while you hold this DV and continue to work in a role that requires that level of security clearance. The terms of this allowance will be made available if you are successful in being recruited into this role.

Security isn’t always the first thing that comes to mind when you think of BT, but when it comes to keeping everyone safely connected, We Are The Protectors. We deal with thousands of cyber-attacks every day, so that millions of people can safely go about their daily lives and run their businesses.
We deliver vital work at scale, with real breadth and impact. We connect for good.

You'll be joining a specialist security team that is a trusted partner to governments worldwide, protecting critical national infrastructure and committed to the safety and security of our nation and global communities. Our mission focused work is innovative, inspiring and technologically challenging in a way that makes every day different and stimulating. We provide the opportunity to work on rare projects, with exciting tools and brilliant people.

Everyone has access to unparalleled professional and personal development opportunities and your contribution is always valued.

About the role

In your role, you'll bring your technical security expertise and consultancy skills to develop and manage many high-profile customer platforms. You will work with a team of experienced security professionals, and together deliver a fantastic experience to our customers, whilst contributing to the protection of the BT brand. This role is part of the Security team, providing end-to-end security for GSS and its wider customer base.

The role helps BT manage its contractual security obligations and contributes to the protection of the brand and reputation. Working closely to stakeholders across the business to improve and maintain the security posture of our systems as well as providing technical consultancy to our customers

What you’ll be doing

As a Technical Cyber Security Specialist, you will provide expertise and consultancy in technology, processes and controls which protects systems, networks and data at the enterprise level. Security design lead, configuring and hardening systems in accordance with defined policy, security and business requirements Lead role in technical security policy compliance Security consulting ownerships into customer and internal systems, which includes 'on-premise', 'off-premise' and cloud-base solutions, ensuring that industry best security practices are maintained throughout their life-cycles Software & Hardware vulnerability testing at an enterprise platform level.

Co-ordinate Pen Testing and IT Health check life cycles, seeing through to completion as a responsible security role. Stakeholder management - you will actively liaise with all customer stakeholders, and maintain necessary relationships, from Senior Management through to engineer to supporting teams. This will be to articulate across both technical and non-technical audiences. Mentor and coach junior colleagues, as part of the team's succession planning and development programmes.

Threat hunting & platform remediation - you will need to be able to locate, understand and develop IoCs (indicators of Compromise) and using these IoCs analyse the estate to understand where the vulnerabilities lie. Technical security toolset development and management at an enterprise level Essential Skills / Experience Understanding of technical security assurance and…