Cyber Security Ops. Specialist

BT Group; Cheltenham; On-site; GBP 70,000 - 110,000; Full time

Benefits offered by this job

DV allowance £0?

25 days annual leave

BT Pension scheme

EV salary sacrifice

Cycle to work

Private GP access

Job summary

BT Group in Cheltenham is seeking a Technical Cyber Security Specialist to join our security team, delivering end-to-end protection for critical systems and customer platforms. You will work with experienced professionals on high-profile projects and help defend the BT brand.

The role requires DV level security clearance, strong consultancy skills, and a track record in security design, policy compliance, and threat hunting across on-premise and cloud environments.

Qualifications

• Understanding of security assurance and compliance processes, ideally within UK frameworks.
• Knowledge of main technical vendors for systems and networks.
• Experience with Incident Management processes.

Responsibilities

• Provide expertise and consultancy in technology, processes and controls protecting systems, networks and data at enterprise level.
• Security design lead, configuring and hardening systems per policy and requirements.
• Lead role in technical security policy compliance.
• Security consulting across on-premise, off-premise and cloud solutions with best practices.
• Coordinate vulnerability testing and IT health checks across lifecycles.
• Stakeholder management from Senior Management to engineers and support teams.
• Mentor junior colleagues as part of succession planning.
• Threat hunting and platform remediation using IoCs to identify vulnerabilities.

Skills

Security assurance

Compliance

UK frameworks

Vendor knowledge

Incident management

Education

Security qualifications (CCP OSCP CEH)

Job description

Job Title: Cyber Security Ops. Specialist

Req ID: 62797

Job Function: Security

Posting Start Date: 15/10/2026

Posting End Date:

Division: UK Business

Job Location: GBR Cheltenham TE

Advertised Salary: Competitive with great benefits

Career Grade: D

Internal 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 (https://www.gov.uk/government/publications/united-kingdom-security-vetting-clearance-levels/national-security-vetting-clearance-levels). 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 ownership 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 lifecycles, 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 compliance processes, ideally within UK frameworks.
• Varied skills and appreciations across main technical vendors for systems and networks.
• A good working knowledge of the Incident Management Process
• Recognised Industry Security Qualifications, ideally lending towards technical security e.g CCP Security Architect, OSCP, Certified Ethical Hacker etc.

Desirable Skills / Experience

• Membership of accredited professional body e.g Full Member of CIISec
• Good stakeholder management skills, possible people management experience

Our Package

When you join our team, you'll play a role in delivering work that makes a real difference across the UK. In return, you'll be rewarded with a market-leading Total Reward package that reflects the value of your skills and expertise. From structured technical progression and industry-recognised training to generous family support and flexible benefits, we're committed to helping our people succeed at every stage of their career journey.

• Competitive DV market aligned salaries
• Tiered role based DV allowance paid annually
• World-class training and development opportunities
• 10% on target bonus
• Equal family leave: receive 18 weeks at full pay, 8 weeks at half pay and 26 weeks at the statutory rate. It’s for all parents, no matter how your family is made up.
• Enhanced women’s health support: including help with menopause symptoms, cancer screenings, period care and more.
• BT Pension scheme, minimum 5% Employee contribution, BT contribution 10%
• New BT Better Workplace working environments at strategic locations across the UK
• Huge range of flexible benefits including an EV salary sacrifice, cycle to work, healthcare, season ticket loan, additional annual leave
• On-call allowance (Depending on role requirements)
• Access to 100’s of retail discounts including the BT shop
• 24/7 private virtual GP appointments for UK colleagues
• Option to join BT Shares Saving schemes
• 25 days annual leave (not including bank holidays), increasing with service
• 2 weeks paid carer’s leave
• Discounted broadband, mobile and TV packages
• Enhanced life assurance of up to ten times base salary

Security is one of the fastest growing parts of our global organisation. We are protecting our networks from more than 6,500 cyber attacks each day, investing over £40m in research each year - and in employing nearly 3,000 people, we’re also the largest private cyber employer in the UK. With incredible opportunities to learn, develop and grow your skills, we’ll invest in you, nurture your potential and shape your future – whatever your background or experience.

In today’s world, safe and secure digital connections have never been more vital. You’ll be joining a global company operating at the forefront of the information age: BT employs 90,000 people in 180 countries. With huge scale, we’re capable of achieving great things, striving to be personal, simple, and brilliant for our customers whilst creating an inclusive working environment where people from all backgrounds can succeed. Play your part. Make a difference. We are the Protectors.

A FEW POINTS TO NOTE

Although these roles are listed as full-time, if you’re a job share partnership, work reduced hours, or any other way of working flexibly, please still get in touch.

We will also offer reasonable adjustments for the selection process if required, so please do not hesitate to inform us.

DON'T MEET EVERY SINGLE REQUIREMENT?

Studies have shown that women and people who are disabled, LGBTQ+, neurodiverse or from ethnic minority backgrounds are less likely to apply for jobs unless they meet every single qualification and criteria. We're committed to building a diverse, inclusive, and authentic workplace where everyone can be their best, so if you're excited about this role but your past experience doesn't align perfectly with every requirement on the Job Description, please apply anyway - you may just be the right candidate for this or other roles in our wider team.