Senior soc analyst (siem focus)

Salary: £? - ? per year Requirements: Active DV clearance is essential. Strong experience in SOC or cyber security operations. Hands-on experience with SIEM platforms such as Splunk, Sentinel, or Elastic. Ability to develop and tune detection rules and alerts. Experience with incident response and threat analysis. Knowledge of MITRE ATT&CK, IOCs, and TTPs. Familiarity with SOAR tools and automation. Scripting experience such as Python, PowerShell, or Bash is beneficial. Responsibilities: Monitor, investigate, and respond to security incidents across secure environments. Develop and tune SIEM detection rules and correlation logic. Support SIEM and SOAR tooling optimisation and automation. Integrate and onboard log sources to improve visibility across systems. Conduct threat analysis, including TTPs and IOCs. Carry out network and host-based forensic investigations. Support vulnerability management and reporting activities. Work closely with internal stakeholders to ensure effective cyber defence. Technologies: Bash Support Network PowerShell Python Security Splunk More: We are a leading organisation in the defence and national security sector, offering a 6-month contract for a Senior SOC Analyst role in Corsham with 3 days onsite. This is a high-impact, mission-critical cyber security programme inside IR35, with exposure to advanced cyber capabilities in a highly secure environment. You will join an experienced SOC function and have immediate visibility and responsibility in supporting and improving security operations. last updated 25 week of 2026