Intermediate Systems Administrator

About the role

MANTECH seeks a motivated, mission-oriented Intermediate Systems Administrator to join our team in Chantilly, VA. As the Systems Administrator, you will be responsible for providing a full range of Tier 2/3 IT support services and expertise to customer activities. You will play a key role in the management, optimization, and troubleshooting of our VMware virtualized environment and Active Directory infrastructure, ensuring seamless and reliable operations for the organization.

Responsibilities

• Managing Windows Folders and Files using Attribute-based Access Control (ABAC)
• Design, implement, and maintain VMware vSphere environments, including vCenter, ESXi hosts, and virtual machines
• Troubleshoot and resolve VMware-related issues, including performance bottlenecks, connectivity problems, and resource allocation
• Manage, monitor, and troubleshoot Active Directory (AD) and Group Policy infrastructure
• Monitor and maintain system/server configuration
• Administer and support user and group management, including security and distribution groups within Active Directory
• Create and maintain comprehensive documentation for systems architecture, processes, and configurations
• Domestic Travel up to 25%

Qualifications

• Bachelor's Degree and 2 years of relevant experience, or high school diploma/GED and 6 years of relevant experience
• Experience in performing maintenance, repair, upgrade, and full life cycle support of hardware/software interfacing with the enterprise
• Experience implementing and managing Windows File Shares using ABAC with an understanding of file permission inheritance
• Provide leadership and mentoring to junior administrators and technical support
• Security+ certification (active)
• Collaborate with other IT teams to manage system integration, configuration, and upgrades
• Experience with client system security to include scans, patching, audit log review, and system health checks

Preferred Qualifications

• Previous NRO and NRO/COMM experience is highly desired
• COMSEC experience desired
• Ability to use MS Office and PC
• Ability to identify and implement new technologies
• Familiarity with PowerShell
• Experience with Microsoft Exchange
• Experience with Linux

Clearance Requirements

Must possess a current / active TS/SCI with Polygraph

Physical Requirements

• Must be able to be in a stationary position more than 50% of the time
• Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.
• Frequently communicates with co-workers, management, and customers, which may involve delivering presentations