Windows Systems Administrator - McLean, VA - TS/SCI

PGTEKMcLean, VA
$185,000 - $265,000Hybrid

About The Position

We are seeking a highly skilled Senior System Administrator to join a dynamic infrastructure team supporting next-generation technologies, including initiatives in the Artificial Intelligence (AI) space. This role is ideal for a hands-on technical expert who thrives in complex environments and is passionate about building, maintaining, and optimizing enterprise systems.

Requirements

  • MUST have a current and active TS/SCI clearance with CI Poly
  • 8+ years of experience as a Windows System Administrator or similar role
  • Deep expertise in Windows Server and Desktop operating systems
  • Strong experience with enterprise infrastructure design and support
  • Hands-on experience with Active Directory, Group Policy, DNS, and patch management
  • Proven ability to troubleshoot and resolve complex technical issues
  • Excellent communication and interpersonal skills
  • IAM Level II certification (DoD 8570 IAT compliant)

Nice To Haves

  • Experience with Linux (server or workstation environments)
  • Scripting and automation skills (PowerShell, Python, Bash)
  • Microsoft certifications (MCSA, MCSE) or equivalent
  • Experience with virtualization technologies (VMware, Hyper-V, KVM)
  • Knowledge of backup and disaster recovery strategies
  • Familiarity with security best practices (firewalls, antivirus, etc.)
  • SQL Server administration experience
  • Experience with ITSM platforms such as ServiceNow

Responsibilities

  • Design, implement, and maintain Windows-based systems, networks, and applications
  • Architect and support enterprise-level Windows infrastructure
  • Administer and manage: Active Directory, Group Policy, DNS, File servers, Exchange / enterprise email systems
  • Manage patching, updates, and system performance optimization
  • Monitor systems, troubleshoot issues, and ensure high availability
  • Support system deployments using tools such as SCCM or MDT
  • Develop and maintain technical documentation and standard operating procedures
  • Provide Tier II/III technical support via phone, email, and in-person
  • Collaborate with cross-functional IT teams to integrate new technologies
  • Travel up to 20% for on-site support, installations, and maintenance

Benefits

  • Comprehensive PPO medical coverage with access to a Health Savings Account (HSA) option
  • Vision plan
  • Dental insurance with the base dental plan option paid for by PGTEK
  • Life Insurance
  • Short and Long-Term disability
  • Critical Illness insurance
  • Matching 401(k) plan
  • Discount on pet insurance through ASPCA Pet Insurance
  • Employee Assistance Program
  • Generous amount of PTO and Holidays
  • Education Assistance Program is available after 12 months of employment
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