Senior SOC Analyst +9 months + +DV cleared role - current active DV clearance is essential +Inside IR35 +£575 - £650 a day +Corsham / Portsmouth We are seeking an experienced Senior SOC Analyst to join a high-performing Cyber Security Operations Centre supporting critical national security environments. This is an opportunity to work at the forefront of cyber defence, leading threat detection, incident response, vulnerability management, and continuous improvement of security monitoring capabilities. As a Senior SOC Analyst, you will play a key role in protecting complex enterprise environments through the management and optimisation of security tooling, threat detection, incident response, and forensic investigations. You will work closely with internal and external stakeholders to enhance SOC capabilities, improve security visibility, and strengthen cyber resilience. Key Responsibilities Maintain and optimise SOC Protect, Detect and Respond tooling. Configure, implement and support new security monitoring technologies. Develop detection rules, correlation logic, automation scripts and response playbooks. Manage vulnerability scanning platforms and contribute to wider SOC strategy. Integrate and onboard standard and non-standard log sources into SIEM platforms. Monitor, investigate and respond to security incidents and emerging threats. Conduct forensic investigations and malware analysis, producing act...