Senior Systems Administrator

• Lead administration, maintenance, and sustainment of Windows and UNIX/Linux systems supporting mission operations.
• Serve as a senior technical advisor for RMF, cybersecurity compliance, and system authorization efforts.
• Lead preparation, maintenance, and submission of accreditation packages and RMF documentation.
• Implement and oversee security controls, STIG compliance, vulnerability remediation, and continuous monitoring activities.
• Review, analyze, and remediate ACAS findings, audit logs, and cybersecurity vulnerabilities.
• Lead patch management efforts, security updates, and operating system lifecycle activities.
• Manage system resources including availability, capacity, performance, and disaster recovery readiness.
• Support planning, installation, testing, and deployment of new hardware, software, and operating system upgrades.
• Lead development of system documentation, SOPs, architecture diagrams, inventories, and configuration baselines.
• Serve as a voting member and technical contributor to Configuration Control Boards (CCBs) and change management activities.
• Review and approve technical changes to ensure compliance with system security and configuration management requirements.
• Coordinate with Information Assurance personnel, engineers, system owners, and government customers.
• Provide technical leadership, mentoring, and guidance to junior administrators and technical staff.
• Support cybersecurity inspections, audits, security assessments, and compliance reviews.
• Participate in enterprise IA initiatives supporting department-wide cybersecurity requirements.
• Provide training and knowledge transfer to technical teams and end users as required.
• Other duties as assigned or required.

• Minimum of 10 years of systems administration experience supporting complex Windows and/or UNIX/Linux environments.
• CompTIA Security+ or equivalent DoD-approved Information Assurance certification required.
• Experience implementing and maintaining cybersecurity controls, system hardening, patch management, STIG compliance, and vulnerability remediation.
• Experience supporting RMF, ATO, continuous monitoring, and enterprise cybersecurity requirements.
• Experience with Configuration Control Boards (CCBs), change management processes, and configuration management documentation.
• Strong troubleshooting, analytical, organizational, and communication skills.
• Demonstrated ability to lead technical efforts and mentor junior personnel.

• Experience supporting RMF, ATO, and DoD cybersecurity compliance activities.
• Experience with ACAS, eMASS, SCCM, Tenable, or similar cybersecurity tools.
• Experience supporting Navy, NAVAIR, or other DoD environments.
• Microsoft, Red Hat, Linux+, RHCSA/RHCE, or similar systems administration certifications.

High School Diploma or GED required. Additional technical education or cybersecurity-related coursework preferred.

Active Top Secret clearance required with the ability to obtain Special Access Program (SAP) access. Requirements to obtain a clearance include US Citizenship, security investigation, etc.