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Windows Systems Administrator - TS/SCI with Polygraph
- Highland Beach, Florida, United States
- Highland Beach, Florida, United States
Über
CIO Infrastructure Services (CIS) is growing, and we invite both our experienced incumbents and new team members to be part of what’s next. Incumbents bring invaluable mission insight, while new talent adds fresh ideas and energy. Together, we’ll strengthen continuity and drive the next generation of innovation.
MEANINGFUL WORK AND PERSONAL IMPACT As a Windows Systems Administrator supporting enterprise infrastructure services, you will operate, secure, and sustain Windows server and client platforms across dynamic multinetwork environments. You will ensure stable operations, maintain compliance with security and configuration standards, and support mission critical services that require high availability and rapid issue resolution. Your contributions directly improve system reliability, resilience, and readiness across globally distributed environments.
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
CERTFICATION: Meet DoD 8140 Information Assurance Workforce certification requirements (e.g. Security+ CE, etc.)
CLEARANCE: 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 skillsUS citizenship required
LOCATION: Onsite
GDIT IS YOUR PLACE Growth: AI-powered career tool that identifies career steps and learning opportunities
Support: An internal mobility team focused on helping you achieve your career goals
Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off
Community: Award-winning culture of innovation and a military-friendly workplace
OWN YOUR OPPORTUNITY: Explore an enterprise IT career at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your desire to drive operations forward.
#CIS
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Sprachkenntnisse
- English
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