CNI Infrastructure Wintel & Security Tools Analyst (Active SC Clearance) - 6 months - Warwick(Hybrid

Job Description \n CNI Infrastructure Wintel & Security Tools Analyst (Active SC Clearance) - 6 months - Warwick(Hybrid) - Inside IR35 \n We are looking for a Wintel and Security Tools Analyst to provide operational support, administration and troubleshooting for enterprise Windows infrastructure and cybersecurity tools, including endpoint management and antivirus platforms, at a UK critical national infrastructure organisation. You will keep the Windows estate healthy and tune the security tooling to protect the business with minimal disruption to users. The initial contract is 6 months, with extension depending on performance. It is hybrid, with 3 days per week on-site in Wokingham. Active SC clearance is required. \n Key Responsibilities: \n \n Support and administer Windows Server (2016/2019/2022): Active Directory, Group Policy, DNS, DHCP, patching, upgrades and hardening \n Manage AD users and groups and provide IAM support \n Provision and maintain virtual machines, and monitor performance, availability and capacity \n Administer and maintain enterprise antivirus and endpoint management platforms, including agent health, deployment status and policy sync across workstations and Servers \n Run updates, patching and version upgrades for security software \n Act as technical escalation point for support desks on agent malfunctions, install failures and software conflicts \n Tune detection rules, exclusions and policies to cut false positives while keeping protection strong, and optimise AV/IDS performance \n Work with vendors to resolve complex bugs, outages and integration issues \n Onboard new device types, operating systems and software into the endpoint ecosystem \n Handle incidents, requests and problems in ITSM tools, and prepare for and complete audits \n Document configurations, runbooks and troubleshooting procedures \n \n What You Will Ideally Bring: \n \n Active SC clearance (essential) \n Windows Server administration, including Active Directory, GPO, DNS and DHCP \n Managing and supporting antivirus (AV) solutions \n Supporting cybersecurity and endpoint management tools \n Windows and Linux system administration tools and processes \n ITSM incident, request and problem management \n Understanding of monitoring tools, AV and endpoint security concepts (desirable) \n \n Contract Details: \n \n Rate: £350 per day (Inside IR35) \n Location: Hybrid in Wokingham (3x a week) \n Contract Length: 6-Month Initial Contract - Inside IR35 \n