Senior Systems Administrator, Windows

DESCRIPTION OF RESPONSIBILITIES

• Administer and maintain Microsoft Windows Server environments in classified and unclassified environments across Navy networks.
• Manage Active Directory, DNS, DHCP, and Group Policy Objects (GPOs) across multiple domains and enclaves.
• Implement and maintain RMF security controls and ensure systems are compliant with DISA STIGs and DoD cybersecurity policies.
• Apply and manage patches and updates across all Microsoft systems in accordance with DoD and Navy patch management policies.
• Manage automated installation methods and system imaging (e.g., SCCM, VMware, Nutanix).
• Perform system hardening, patching, and vulnerability remediation using tools such as ACAS, ESS, and SCAP.
• Develop and maintain PowerShell scripts for automation of administrative tasks and system configuration.
• Support virtualization platforms (VMware, Hyper-V) and manage virtual infrastructure lifecycle.
• Collaborate with cybersecurity teams to support ATO packages, POA&Ms, and audit readiness.
• Maintain system documentation, configuration baselines, and standard operating procedures (SOPs).
• Provide mentorship to junior administrators and IT support staff.
• Participate in Change Control Boards (CCBs) and Configuration Management Boards (CMBs).
• Create and configure file systems and file system attributes, such as permissions, encryption, access control lists, and network file systems.
• Assist with incident response, forensic analysis, and system recovery efforts.
• Support backup and disaster recovery strategies using enterprise tools (e.g., Veeam, Commvault).
• Evaluate and recommend new Microsoft technologies and DoD-approved tools to improve system performance and security.

REQUIRED DEGREE/EDUCATION/CERTIFICATION

• Bachelor's Degree in IT, or relevant field and at least seven (7) years of System Administration/IT experience (or HS diploma/GED and twelve (12) years of System Administration/IT experience).
• (Advance certifications may be substituted for a degree or experience.)
• (Years of directly related work experience may be substituted for a degree.)
• DOD 8570/8140 IAT IIOne of the following OS Certifications required: Windows, Azure Administrator Associate (Exam AZ-104), Windows Server Hybrid Administrator Associate (Exam AZ-800 and AZ-801).

REQUIRED SKILLS & EXPERIENCE

• Candidate must be capable of working in a team environment and participate in technical and system administrative activities throughout project life cycles.
• Knowledge of IT systems and advance IT infrastructure concepts.
• Must be proficient in operating personal computers, computer software and standard office equipment.
• Basic keyboarding skills and aptitude for neatness and accuracy in sorting.
• Critical thinking - Proven problem solver.

DESIRE SKILLS AND EXPERIENCE

• Advance knowledge and certification in both Windows Server and RHEL is considered highly desired.
• Proficiency in automation tools and scripting (e.g, PowerShell, Bash, Python).
• VMware/Nutanix certification.
• Knowledge/Administration of Trellix, LogRhythm, and MDE.
• Experience with DoD systems and infrastructure.
• Knowledge in Cyber Security Methods and Techniques.
• Knowledge of DoD IT systems, to include Windows, RHEL, and comprehensive infrastructure concepts.

REQUIRED CITIZENSHIP AND CLEARANCE

• Must be a U.S. Citizen.
• A candidate must have at least a Tier 3/NACLC/Secret to be considered.