Cyber Security Engineer Stevenage | Up to £92 per hour (Inside IR35) | 24 Month Contract | Onsite Stevenage We're supporting a leading organisation within the Defence sector in the recruitment of a Cyber Security Engineer to join a mature Cyber Security Operations function. This is a hands-on engineering role focused on the implementation, maintenance, optimisation and integration of security technologies across complex enterprise environments. Key Responsibilities Administer and maintain SIEM and security monitoring platforms Configure and optimise log ingestion, correlation rules and alerting Develop and maintain automation using PowerShell, Python and Regex Integrate security technologies using APIs, HTTP/S and JSON Implement, maintain and optimise cyber security tooling Manage platform upgrades, patching and technology refresh activities Administer security appliance certificates and lifecycle activities Onboard new data sources into security platforms Lead tool integration and capability enhancement projects Support incident investigations through advanced queries and custom scripting Maintain platform availability, resilience and performance Work closely with SOC analysts to improve detection capabilities and reduce false positives Support change management, CAB activities and technical implementation planning Essential Technical Skills Security Platforms SIEM administration and support Security tooling implementation and maintenance Log onboarding and data source integration Detection engineering and alert tuning Scripting & Automation PowerShell Python Regex Integration Technologies REST APIs HTTP/S JSON Infrastructure Active Directory LDAP Windows Server IIS SMB Storage Linux / Unix NFS Storage VMware Hyper-V Virtual Networking Security Engineering Certificate Management PKI Software Upgrades Security Platform Refresh Activities End of Life (EOL) Migrations End of Support (EOS) Upgrades Security Appliance Administration Threat Detection Technologies Desirable Splunk Microsoft Sentinel QRadar Elastic LogRhythm ArcSight Wazuh SOAR Platforms AI / Machine Learning Security Automation Proxy Administration Network Packet Capture Technologies EDR / XDR Platforms Contract Details Up to £92 per hour (Inside IR35) 24 Month Contract Stevenage 5 Days Onsite Single Stage Interview Process Defence Sector EnvironmentThis role is best suited to Cyber Security Engineers, Security Engineers, SIEM Engineers, Security Platform Engineers and Detection Engineers with strong experience across security tooling, automation and platform engineering