Senior Windows Administrator

2 days ago Be among the first 25 applicants

GCI is seeking a Senior Windows Administrator to support a Department of Defense contract for a period of 3 months with the possibility of extension. Telework is authorized, but preference is given for candidates residing in the Reston, VA area.

• Managing and administering Windows-based deployments in DoD environments
• Implementing and maintaining Windows STIG and related security postures (e.g., ACAS, HBSS/ESS)
• Extensive experience with Active Directory, including integration with Sailpoint and/or Ping Identity
• Expertise with Microsoft Defender for Endpoint security and tagging
• Ensuring compliance with DoD security and identity standards
• Familiarity with DoD ICAM and collaboration with internal teams to connect cloud‑native identity tools
• Knowledge of cloud parent/child tenancies, including Defender deployment for multiple Mission Owners
• Configuring and maintaining Windows Remote Desktop Gateway
• Deploying/maintaining Windows environments (patching, configuration) via Dev Sec Ops  tool chains
• Integrating and managing identity tools, including Sailpoint and Cyber Ark
• Troubleshooting, resolving, and documenting infrastructure/security issues

• Minimum SECRET clearance
• At least 5 years’ hands‑on experience with cloud technologies
• Ideally 10 years’ experience working in DoD environments
• Strong Active Directory experience in DoD settings with integration to DoD Identity Services
• Deep Microsoft Defender expertise, including deployments/reporting across Mission Owners

• Exposure to Sailpoint, Ping Enterprise, and/or Cyber Ark
• Knowledge of SCCA or DoD security frameworks
• Relevant cloud or Windows certifications, such as:
  • Windows Server Hybrid Administrator Associate (AZ-800 + AZ-801)
  • Microsoft Certified:
    Windows Server Hybrid Administrator Associate
  • Microsoft Certified:
    Identity and Access Administrator Associate
  • Microsoft Certified:
    Azure Virtual Desktop Specialty

1099 position - up to $61/hour

All qualified applicants will receive consideration for employment. GCI gives preferential treatment to veterans.