Senior Windows SysAdmin - Secret Clearance, Onsite DC

CALNET, Inc.; Washington, Northern (District of Columbia, KY); Hybrid; USD 90,000 - 120,000; Full time

Job summary

CALNET, Inc. in Washington DC is seeking a Senior Windows System Administrator with a Secret Clearance to join our IT team onsite.

You will manage Microsoft infrastructure, deploy VMs, configure Active Directory, and ensure security and high availability in a hybrid environment. The role requires 5+ years of Windows admin experience, a Bachelor’s degree, and hands-on expertise with PowerShell, RBAC, and backup/DR strategies.

Qualifications

• Bachelor's degree in Computer Science, IT, or equivalent experience.
• 5+ years of experience in Microsoft Windows system administration.

Responsibilities

• Infrastructure Management: Provisioning, configuring, and managing resources, including virtual machines (VMs), virtual networks (VNets), storage accounts, and database services.
• Security & Identity Management: Administering Microsoft Active Directory, implementing RBAC, managing user permissions, and ensuring compliance with security policies.
• Monitoring & Optimization: Monitoring system health, performance, and usage metrics; performing cost optimization and troubleshooting incidents to ensure high availability.
• Hybrid Integration: Supporting hybrid environments, on-premises networking, and server patching.
• Backup & Disaster Recovery: Configuring and managing backups, replication, and data restoration services.

Skills

Windows Server administration

PowerShell / CLI scripting

Active Directory

Security compliance

Education

Bachelor's degree in Computer Science

Tools

VMware / Hyper-V

Azure

Monitoring tools

Job description

CALNET, Inc. in Washington DC is seeking a Senior Windows System Administrator with a Secret Clearance to join our IT team onsite.

You will manage Microsoft infrastructure, deploy VMs, configure Active Directory, and ensure security and high availability in a hybrid environment. The role requires 5+ years of Windows admin experience, a Bachelor’s degree, and hands-on expertise with PowerShell, RBAC, and backup/DR strategies.