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GovCIO LLC seeks a Senior Cyber Security Administrator to secure mission-critical federal IT systems. In this role, you will administer and harden security tools, monitor and investigate security events, and lead incident response to protect complex, multi-cloud and on-prem environments. You'll implement security baselines, support NIST/FISMA compliance, manage identity and access controls, and drive remediation of vulnerabilities. Working in a mission-driven, collaborative culture, you'll mentor others, influence security architecture, and help modernize government technology at scale. Responsibilities Administer and harden security tools, firewalls, IDS/IPS, and endpoint protection across federal environments. Monitor security events, investigate incidents, and coordinate response and remediation. Implement and maintain security baselines, configurations, and patch management processes. Support compliance with federal security standards (e.g., NIST, FISMA) and internal policies. Conduct vulnerability scans, analyze findings, and drive remediation with engineering teams. Manage identity and access controls, including privileged account management and MFA. Develop and update security documentation, runbooks, and standard operating procedures. Collaborate with Dev, Cloud, and Network teams to embed security into system designs. Support security audits, assessments, and ATO-related activities for federal systems. Mentor junior staff and contribute to continuous improvement of cybersecurity operations. Required Skills Network security administration (firewalls, IDS/IPS) Security Information and Event Management (SIEM) tools Endpoint protection and EDR platforms Vulnerability assessment and remediation Identity and Access Management (IAM) and MFANIST and FISMA compliance frameworks Incident detection, triage, and response Security hardening and configuration management Cloud security (AWS/Azure/GCP) fundamentals Scripting/automation (Power Shell, Python, or similar)