Windows Systems Administrator - TS/SCI with Polygraph

WINDOWS SYSTEMS ADMINISTRATOR

Own your opportunity to support national defense. Your work will help keep critical operations secure and connected across the global enterprise, contributing to a mission that protects our nation every day.

KEY RESPONSIBILITIES

Administer, operate, and maintain Windows server and endpoint systems across physical, virtual, and cloud environments, ensuring stability, performance, and secure configurations Perform Tier II/III troubleshooting and root cause analysis for OS level, authentication, GPO, networking, and dependency related issues supporting enterprise services Manage configuration baselines, apply required updates, support lifecycle planning, and maintain accurate documentation for change, configuration, and operational processes Support Active Directory, Group Policy, certificate services, server roles, and related identity, access, and configuration services across multiple network domains Maintain, monitor, and update Windows systems for compliance with security baselines, STIG settings, and enterprise hardening requirements Coordinate with engineering, cybersecurity, monitoring, and platform teams to ensure secure integrations, dependency mapping, and seamless operations Maintain server virtualization environments, including building, updating, and troubleshooting virtual machines, templates, hypervisors, and supporting infrastructure Support operational tasks such as firmware updates, system provisioning, backup/restore activities, template updates, and service availability monitoring Execute Windows OS and security patching across assigned systems, deploying enterprise approved updates, baseline releases, and third‑party patches to maintain security and configuration compliance Identify and remediate noncompliant systems by reviewing vulnerability and SCAP reports, diagnosing root causes, coordinating corrective actions, and validating remediation across multiple networks

WHAT YOU’LL NEED TO SUCCEED

EDUCATION: Bachelor’s degree in an IT‑related field, or 10+ years of relevant IT experience in lieu of a degree DOC 8140 Information Assurance Workforce certification (e.g., Security+ CE, etc.) Active TS/SCI clearance with a favorable polygraph Hands‑on experience administering Windows Server and Windows client OS in enterprise or multinetwork environments Proficiency with Active Directory, GPO creation/troubleshooting, OS deployment tooling, and PowerShell automation Experience implementing secure configurations, STIG/HBSS compliance, and OS hardening practices Familiarity with enterprise patch management, vulnerability remediation, and configuration compliance auditing Ability to diagnose and resolve complex OS, authentication, and configuration issues across distributed infrastructure Strong documentation, communication, and collaboration skills US citizenship required Location: Onsite

BENEFITS & COMPENSATION

Competitive salary range: $111,155 – $150,385, based on experience, location, and contractual requirements. Benefits include a comprehensive medical plan, dental and vision coverage, 401(k) with company match, paid time off, and other health, safety, and life insurance offerings.

WORK HOURS & LOCATION

Scheduled weekly hours: 40 Travel required: None Telecommuting options: Onsite Primary work location: USA MD Annapolis Junction Additional work locations: USA CO Colorado Springs – 8610 Explorer Dr (COC036), USA DC Washington, USA FL MacDill AFB – 7115 S Boundary Blvd (FLC096), USA VA Springfield – 7770 Backlick Rd (VAS110) Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans #J-18808-Ljbffr General Dynamics Information Technology