Senior Windows System Administrator

The Senior Windows System Administrator serves as a technical lead responsible for the administration, maintenance, security, and modernization of enterprise Windows infrastructure in classified and unclassified mission environments. This role combines advanced systems administration with customer service, managing Active Directory, Group Policy, Windows Server, and endpoint management solutions while providing Tier 2 and Tier 3 support. The position requires strong communication skills to resolve customer issues and ensure a positive user experience across all supported environments.