Wintel Security Analyst (Active SC Clearance Only)

Gazelle Global Consulting Limited; Wokingham; Hybrid; GBP 40,000 - 60,000; Full time

Job summary

Gazelle Global Consulting Limited is seeking an experienced analyst to support a critical Windows infrastructure and enterprise security environment. The role combines hands-on Windows Server administration with endpoint security and antivirus management to keep systems secure and reliable.

You will administer Windows Server 2016/2019/2022, manage AD, GP, DNS and DHCP, and oversee antivirus/endpoint security, monitor agent health, perform patches, and collaborate with infrastructure and security

Qualifications

• Experience administering Windows Server environments (2016/2019/2022).
• Hands-on experience managing antivirus and endpoint security tools.
• Active SC security clearance is required.

Responsibilities

• Administer and support Windows Server environments (2016/2019/2022).
• Manage Active Directory, Group Policy, DNS, DHCP, users and groups.

Skills

Windows Server

Active Directory

Group Policy

DNS

DHCP

Endpoint security

Antivirus management

Security monitoring

Incident management

Tools

Endpoint protection tools

Security monitoring tools

Job description

Location:

Wokingham (Hybrid - 3 days onsite)

Contract:

Initial 6 months, with extension potential

Are you experienced in Windows infrastructure and enterprise security tools? We're looking for a technically capable analyst to support a critical infrastructure environment, combining hands-on Wintel administration with endpoint security and antivirus management.

You'll help maintain secure, reliable Windows server environments while supporting the performance and effectiveness of enterprise cybersecurity platforms. This includes troubleshooting technical issues, maintaining security controls and working alongside infrastructure and security teams to ensure systems remain protected and operational.

Key Responsibilities & Skills:

• Administer and support Windows Server 2016, 2019 and 2022 environments.
• Manage Active Directory, Group Policy, DNS, DHCP, users and groups.
• Maintain enterprise antivirus and endpoint security solutions.
• Monitor endpoint agent health, deployment status and policy synchronisation.
• Perform security software updates, patching and version upgrades.
• Troubleshoot endpoint agent failures, false positives and security policy issues.
• Support system hardening, vulnerability mitigation and audit requirements.
• Manage incidents and service requests, documenting configurations and support procedures.

Essential Requirements:

• Active SC security clearance.
• Experience administering Windows Server environments.
• Hands-on experience managing antivirus and endpoint security tools.
• Background supporting cybersecurity platforms and endpoint management.

Three days onsite per week in Wokingham is mandatory.