Security Analyst

Queen Square Recruitment Ltd; Reading; Híbrido; GBP 52.000 - 76.000; Jornada completa

Descripción de la vacante

Queen Square Recruitment Ltd in Reading is seeking an experienced Endpoint Security Analyst to join a high-performing IT and Cyber Security team supporting a complex enterprise environment. This role centers on antivirus, endpoint management, Windows Server administration, and Active Directory across a large-scale estate.

ASAP start on a 6-month initial contract with extensions possible. Active SC Clearance is required.

Formación

• Proven experience with antivirus and endpoint security platforms.
• Experience managing Windows Server (2016/2019/2022) and Active Directory.
• Strong knowledge of security policies, patching, and vulnerability remediation.

Responsabilidades

• Administer and support antivirus and endpoint security platforms.
• Monitor endpoint agent health and policy synchronization across servers/workstations.
• Fine‑tune security controls and detection rules to reduce false positives.
• Manage updates, patches, and upgrades for security tooling and endpoint management.
• Provide escalation support for endpoint agent issues and incidents.
• Support Windows Server environments (2016/2019/2022) and AD/GPO/DNS/DHCP.
• Perform system patching and security hardening; remediate vulnerabilities.
• Support Wintel infrastructure and virtualised servers.
• Investigate AV alerts, quarantine issues, IDS events, and platform performance.
• Liaise with vendors to resolve complex issues and incidents.
• Maintain system availability, performance, and capacity across environments.
• Document procedures, runbooks, and operational processes.

Conocimientos

Endpoint security

Active Directory

Windows Server

PowerShell

Incident response

Security monitoring

Policy management

Herramientas

Endpoint management tools

IDS/IPS

SIEM

Windows admin tools

Descripción del empleo

Windows Server | Active Directory | Endpoint Management | Antivirus | Wintel Support

Wokingham (Hybrid - 3 Days Onsite)

6-Month Initial Contract (Extensions Available Based On Performance)

ASAP Start Required

Active SC Clearance Required

We are seeking an experienced Endpoint Security Analyst to join a high-performing IT and Cyber Security team supporting a complex enterprise environment. This is an exciting opportunity for a skilled infrastructure and endpoint security professional with strong experience supporting antivirus, endpoint management, and Windows server technologies.

You will play a critical role in maintaining and optimising enterprise security tooling, ensuring endpoint protection platforms remain effective, secure, and operational across a large-scale environment. Working closely with infrastructure, security, and support teams, you will provide technical expertise across endpoint security, Active Directory, Windows Server administration, and operational support.

Key Responsibilities

• Administer, configure, and support enterprise antivirus and endpoint security platforms.
• Monitor endpoint agent health, deployment status, policy synchronisation, and security compliance across servers and workstations.
• Fine-tune security controls, detection rules, exclusions, and security policies to minimise false positives while maintaining robust protection.
• Manage application updates, patching, and version upgrades for security tooling and endpoint management platforms.
• Provide technical escalation support for endpoint agent issues, installation failures, software conflicts, and security incidents.
• Support and maintain Windows Server environments (2016/2019/2022).
• Administer and manage Active Directory, Group Policy, DNS, DHCP, user accounts, groups, and IAM-related activities.
• Perform system patching, security hardening, upgrades, and ongoing vulnerability remediation.
• Support Wintel infrastructure and virtualised server environments.
• Troubleshoot AV alerts, quarantine issues, IDS events, and security platform performance concerns.
• Liaise with third-party vendors to resolve complex technical issues and platform incidents.
• Monitor system availability, performance, and capacity across supported environments.
• Maintain documentation, support runbooks, knowledge articles, and operational procedures.
• Support incident, request, problem, and change management activities through ITSM processes.
• Assist with audit preparation, compliance requirements, and cybersecurity governance activities.
• Active SC Clearance
• Proven experience administering and supporting enterprise Antivirus (AV) solutions
• Experience supporting Endpoint Security and Endpoint Management platforms
• Knowledge of endpoint agent deployment, health monitoring, and policy management
• Experience performing application patching, upgrades, and security software maintenance
• Active Directory administration, including users, groups, and Group Policy
• Strong understanding of Windows operating systems and security principles
• Familiarity with both Windows and Linux administration tools and processes
• Experience working within enterprise IT support or cybersecurity operations environments
• Understanding of IDS technologies and endpoint security concepts.
• Experience onboarding new devices and operating systems into endpoint management platforms.
• Knowledge of security monitoring and event analysis tools.
• Scripting or automation experience using PowerShell, Python, or similar technologies.
• Experience documenting technical procedures, support runbooks, and operational processes.

This is an excellent opportunity to join a collaborative team working on business-critical systems while contributing to the security and resilience of a large-scale enterprise estate.