Cyber Security Ops

Salary: £36,000 - 67,000 per year

Requirements:

• We require eligibility to obtain DV (Developed Vetting) Security Clearance before starting.
• We require that you have lived in the UK for 10+ years to be eligible.
• We require you to work onsite 5 days per week.
• We are looking for strong programming or scripting skills in SQL, Python, Scala, R, or bash.
• We are looking for experience using big data platforms and querying diverse data types.
• We are looking for a strong analytical mindset to derive meaning from data, challenge assumptions, analyse competing hypotheses, and assess alternative explanations.
• We value experience gained in incident response or investigating complex problems.
• Desirable: knowledge of networking concepts such as ports and protocols, the OSI model, TCP/IP, routing, and subnetting.
• Desirable: experience with packet analysis tools, intrusion detection systems, SIEM platforms, and threat intelligence platforms.
• Desirable: experience in cyber security, signalling, digital forensics, network administration, threat hunting, malware analysis, communications data analysis, or OSINT research.

Responsibilities:

• We conduct comprehensive analysis of complex problems by planning, executing, and reporting on findings.
• We document the analytical process clearly, including research, planning, and execution stages.
• We leverage big data tools to query and integrate data from multiple sources.
• We develop and apply novel analytical tradecraft and a critical mindset to uncover insights.
• We produce clear, timely, and actionable reports based on analytical findings.
• We communicate complex technical issues and limitations to both technical and non-technical audiences.
• We ensure clarity by distinguishing between facts and opinions.
• We adhere to all information handling policies and procedures.
• We maintain subject matter expertise in our analytical or technical domain.
• We take the lead on complex analytical challenges and technical issues when appropriate.
• We collaborate and innovate with colleagues and stakeholders.
• We share knowledge, mentor peers, and provide constructive feedback to support team growth.
• We build and maintain strong relationships with analytical stakeholders to understand their domain, requirements, and challenges.
• We engage regularly with stakeholders to assess the relevance and impact of our analysis.

Technologies:

• Big Data
• Bash
• Support
• Network
• Python
• SQL
• Scala
• Security
• TCP/IP
• Mobile

More:

We are BTs specialist security team, trusted by governments worldwide to protect critical national infrastructure and help keep people safely connected. Our mission-focused work is innovative, inspiring, and technically challenging, with rare projects, exciting tools, and brilliant people. We offer strong professional and personal development, a structured Technical Progression Pathway, competitive DV-aligned pay, a tiered DV allowance of up to £5,000 per annum, world-class training, flexible benefits, and extensive family and wellbeing support. This role is based in London, Cheltenham, and Ipswich, and requires onsite work five days a week. We are one of the fastest-growing parts of our global organisation, protecting our networks from thousands of cyber attacks every day and employing nearly 3,000 people in the UK, within a global company of 90,000 people across 180 countries.

last updated 34 week of 2026