Senior Security Administrator

Job Brief

We are seeking a highly motivated and detail-oriented Senior Security Administrator to join our Cybersecurity team. The candidate will be responsible for the end-to-end administration, monitoring, and optimization of the organization s endpoint security, vulnerability management, patch management, and web security infrastructure.

This role will oversee the day-to-day operations, configuration, tuning, and lifecycle management of Antivirus, EDR/XDR, vulnerability assessment, patch management, and Secure Web Gateway/SASE platforms. The successful candidate will play a critical role in ensuring that endpoints, servers, and internet-facing traffic remain secure, compliant, and protected against evolving cyber threats.

Roles & Responsibilities

• Administer, configure, and maintain Endpoint Detection and Response (EDR), Extended Detection and Response (XDR), and Antivirus platforms, including CrowdStrike Falcon and Trend Micro Apex One/Vision One, across desktops, servers, and cloud workloads.

• Monitor EDR/XDR and Antivirus consoles for malware detections, policy violations, and suspicious endpoint activities.

• Investigate, contain, and remediate security incidents involving compromised or infected endpoints.

• Manage agent deployment, health monitoring, tamper protection, policy enforcement, exclusions, and platform tuning to reduce false positives while maintaining optimal protection.

• Own and manage the complete vulnerability management lifecycle using Qualys VMDR, including asset discovery, authenticated scanning, risk assessment, vulnerability prioritization, exception handling, and remediation tracking.

• Analyze vulnerabilities using CVSS, TruRisk, and other risk-based methodologies to prioritize remediation efforts.

• Coordinate with infrastructure and system administration teams to plan, schedule, and monitor operating system and third-party application patch deployments.

• Track patch compliance and ensure timely closure of critical and high-severity vulnerabilities within defined SLAs.

• Administer and maintain Secure Web Gateway and SASE platforms such as Forcepoint Web Security and Fortinet FortiSASE.

• Configure and manage URL filtering, web content controls, SSL inspection policies, internet access governance, and application access policies.

• Implement and maintain Zero Trust Secure Access (ZTSA/ZTNA) policies to enforce identity-based, least-privilege access for remote and hybrid users.

• Investigate web security incidents, including malicious URL access, command-and-control (C2) communications, and policy circumvention attempts, and coordinate remediation activities.

• Generate dashboards, executive reports, and operational metrics related to endpoint security health, vulnerability posture, patch compliance, and web security.

• Perform regular platform health checks, upgrades, configuration reviews, and license management activities.

• Support internal and external audits, regulatory assessments, and compliance reviews related to endpoint, vulnerability, and web security controls.

• Develop, maintain, and continuously improve security SOPs, operational runbooks, and incident response playbooks.

• Coordinate with vendors and OEM support teams for issue resolution, product upgrades, and escalations.

• Participate in on-call and rotational shift support to ensure continuous 24 7 security operations coverage.

Requirements

• Bachelor s degree in Computer Science, Information Technology, Cybersecurity, or a related field.

• 3-6 years of hands-on experience in endpoint security, vulnerability management, patch management, and web security administration.

Technical Skills

Endpoint Security

• CrowdStrike Falcon
• Trend Micro Apex One, Vision One, and Deep Security

Vulnerability & Patch Management

• Qualys VMDR, TruRisk, and CyberSecurity Asset Management (CSAM)
• WSUS or equivalent patch management solutions

Web Security & SASE

• Forcepoint Web Security
• Fortinet FortiSASE
• Zero Trust Secure Access (ZTSA/ZTNA)

Infrastructure & Security Knowledge

• Strong understanding of Windows and Linux/Unix security administration
• Working knowledge of networking concepts and protocols
• Familiarity with cloud security controls in Azure and AWS environments
• Knowledge of malware analysis fundamentals, Indicators of Compromise (IOCs), and endpoint forensics
• Strong understanding of CVEs, CVSS scoring, vulnerability prioritization, and risk-based remediation strategies

Soft Skills

• Strong analytical and problem-solving abilities.
• Excellent troubleshooting and incident resolution skills.
• Effective verbal and written communication skills.
• Ability to collaborate across technical and business teams.
• Strong organizational skills with the ability to manage multiple priorities.
• High level of ownership, accountability, and attention to detail.
• Flexibility to work in rotational shifts supporting a 24 7 operational environment.

Preferred Certifications

At least one of the following certifications is mandatory:

• CrowdStrike Certified Falcon Administrator (CCFA)
• Trend Micro Certified Professional
• Qualys Certified Specialist (VM/VMDR)
• CompTIA Security+
• EC-Council Certified Incident Handler (ECIH)
• EC-Council Certified SOC Analyst (CSA)

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Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.