Systems Administrator with Security Clearance

ManTech seeks a motivated, career and customer-oriented Systems Administrator, in Chantilly, VA. The Systems Administrator is responsible for providing a full range of Tier 1 IT support services & expertise to customer activities focusing on client and server environment services and virtual environment services. Support client and server operations and maintenance with Windows 10 and 11 environments and Windows Server 2016/2019, to include Active Directory, Domain Controllers, FTP, DNS, GPO's, PKI, DHCP, VMWare, Backup Architectures, Storage Management, and Auditing. Provide ITIL IT Operations Management and IT Service Management, SharePoint, and Tier 1-4 support. Responsibilities include, but not limited to: * Windows user account creation, enable, disable, deletion, and archival
* Windows file and folder permission & inheritance structure
* In-depth network and client systems troubleshooting
* Perform maintenance, repair, upgrade, and full life cycle support of hardware/software interfacing with the enterprise
* Research and order hardware/software to meet customer requirements
* Document system configurations
* Familiarity with virtualization and virtual environments
* Familiarity with client system security to include scans, patching, audit log review, and system health checks
* Familiarity with RAID, SAN, NAS, high availability, backup, and disaster recovery
* Familiarity in setup/configuration of network devices, both copper and fiber
* Familiarity with system monitoring tools: Tenable Security Center, ACAS, Splunk, SCCM, Trellix ePO, and HBSS, and ServiceNow, Basic Qualifications: * Bachelor's Degree and 2 years or more years of relevant systems administrator experience, or high school diploma/GED and 4 or more years of relevant systems administrator experience
* Security+ certification (active)
* Occasional travel, 25% CONUS
* Ability to use MS Office and PC Preferred Qualifications: * Previous NRO experience is highly desired
* COMSEC experience desired Physical Requirements: * Must be able to be in a stationary position more than 50% of the time * Frequently communicates with co-workers, management, and customers, which may involve delivering presentations
* Constantly positions self to maintain computers in the lab, including under the desks and in the server closet * Frequently moves Audio/Visual or Computer equipment weighing up to 50 pounds across and/or around a business campus or large facility Security Clearance Requirements: * Must have a current/active TS/SCI with Polygraph