Senior Systems Administrator — Microsoft Windows

Job overview

The Senior Systems Administrator role is onsite in Manassas, VA. Compensation is $50–$57.69 per hour. The administrator manages Microsoft Windows systems, endpoint security, cloud infrastructure, and virtual environments. The role maintains secure and reliable systems through administration, patching, troubleshooting, vulnerability mitigation, and disaster-recovery planning. It supports technical staff and organizational operations by managing identity, endpoint security, Azure resources, virtualization, and automation.

What you'll do

• Manage Active Directory, user accounts, security groups, and Group Policy
• administer Windows Server 2016, 2019, and 2022
• support Microsoft Office, Microsoft 365, file clusters, and print servers
• maintain operating-system baselines
• install, configure, monitor, troubleshoot, patch, and upgrade systems
• conduct vulnerability assessments
• implement CIS- and NIST-aligned controls and Zero Trust support
• administer endpoint security and EDR
• manage Azure resources and virtual environments
• track IT assets
• troubleshoot PowerShell scripts
• support disaster recovery and replication.

What we're looking for

Skills & competencies

senior systems administrator

manassas va

microsoft windows server

active directory

microsoft azure

microsoft 365

cybersecurity

endpoint security

powershell

virtualization

$50–$57.69/hr

hepco

Work arrangement

• Weekend coverage required

Benefits & perks

• Health insurance and 401(k).

Why this role

Requires at least ten years of relevant experience with Windows Server, Active Directory, Group Policy, cybersecurity, and TCP/IP networking. Health insurance and 401(k) are listed benefits.

About the employer

HEPCO, Inc. is hiring for this role. Industry: Computer Facilities Management Services. Sector: 54.