Job Description
Cyber Security Ops. Professional
Req Id:  58060
Posting Start Date:  5/11/26
Job Function:  Security
Division:  UK Business
Job Location:  GBR Cheltenham - GSL House, GBR Ipswich - Adastral Hub, GBR London - Monument TE
Advertised Salary:  Competitive

Job Req ID: 58060

Posting Date: 11th May 2026

Function: Security 

Location: London, Cheltenham and Ipswich 

Salary: Competitive with great benefits 

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.

Why this job matters

As a key element of critical national infrastructure, telecommunications operators are interwoven into a severe and relentless threat landscape. In a role like no other, dealing with the most advanced and harmful adversaries is our daily routine. 

Our unique and specialist team respond to bespoke analytical requirements. No two days are the same. We use the latest technology to conduct high-precision high-impact analysis which protects our customers, colleagues and the society we live in. 

This role will push you to learn a diverse range of technologies, data and skills. We work with industry-leading customers, colleagues and partners and you will become a technical authority representing our networks and capabilities. 

You will need to be eligible to obtain DV Security Clearance before starting this role. You will need to have lived in the UK for 10+ years to be eligible. Additionally, this role is 5 days per week onsite. 

What you’ll be doing

  • Conduct comprehensive analysis of complex problems by planning, executing, and reporting on findings. Document the analytical process clearly, including research, planning, and execution stages. Leverage big data tools to query and integrate data from multiple sources. Develop and apply novel analytical tradecraft and a critical mindset to uncover insights. 
  • Produce clear, timely, and actionable reports based on analytical findings. Effectively communicate complex technical issues and limitations to both technical and non-technical audiences. Ensure clarity by distinguishing between facts and opinions. Adhere to all information handling policies and procedures. 
  • Maintain subject matter expertise in your analytical or technical domain. Take the lead on complex analytical challenges and technical issues when appropriate. Collaborate and innovate with colleagues and stakeholders. Contribute to team growth by sharing knowledge, mentoring peers, and providing constructive feedback.
  • Build and maintain strong relationships with analytical stakeholders to ensure a deep understanding of their analytical domain, requirements, and challenges. Engage regularly to assess the relevance and impact of your analysis. 

Essential Skills

  • You will be skilled in using programming/scripting languages such as SQL, Python, Scala, R and bash. You may have used these skills to operate big data platforms and queried a diverse range of data types.
  • You will be skilled in using your analytical mindset to derive meaning from data, challenge assumptions, analyse competing hypothesis and assess alternative explanations. You may have used these skills in responding to an incident or investigating a complex problem.  

Desirable Skills

  • You may have knowledge of networking concepts such as ports and protocols the OSI model, TCP/IP suite, routing, subnetting etc. You may have experience using packet analysis tools, intrusion detection systems, SIEM platforms and threat intelligence platforms.
  • You may have applied your analytical skills in environments such as cyber security, signalling, digital forensics, or network administration. Your experience might include areas like threat hunting, incident response, malware analysis, digital forensics, communications data analysis or open-source intelligence (OSINT) research 

Our Package

Tailored benefits make a real difference. That’s why we offer a comprehensive range to support your growth, wellbeing, and everyday life. You can design the package to suit you and your lifestyle. Your core benefits include:

  • 10% on target annual bonus
  • Access to an online private GP 24/7 for you and your immediate family 
  • Market-leading paid carers leave with up to 2 weeks off 
  • Equalised maternity, paternity, and adoption leave – 18 weeks’ full pay and 8 weeks’ half pay
  • Discounted EE and BT products, including mobile and broadband
  • Market leading Pension scheme – 5% from you and 10% from us
  • Holiday purchase scheme
  • You can select additional benefits, including healthcare, dental, gym memberships and more when you’re ready.

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.