Senior Windows Systems Administrator – Secret Clearance

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

Founded in 1989, CALNET, Inc. has become one of the fastest growing privately held companies in the Technology, Intelligence Analysis, and Language Services consulting arena. Headquartered in Reston, VA, CALNET employees deliver true value to our customers by employing best practices, world-class technologies industry expertise in every project. CALNET is ISO 9001, ISO 20000, and CMMI-Level III certified

As a Prime Government Contractor for a major government institution, we are currently searching for a talented Senior Windows System Administrator with Secret Clearance to workin Washington DC

Job Requirements

Windows Systems Administrator manages, secures, and optimizes an organization's Microsoft infrastructure. Key responsibilities include deploying virtual machines, managing network security, configuring Active Directory, monitoring system performance, automating tasks via PowerShell/CLI, and supporting hybrid environments to ensure high availability and compliance.

Key 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 Role-Based Access Control (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.

Certifications: CompTiA Security+

Typical Educational/Experience Requirements

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

This opportunity is onsite in Washington DC

CALNET, Inc. offers a competitive salary and a generous benefits package. This package includes medical, dental, vision, life, short- and long-term disability insurances, a 401(k)-retirement savings plan, and generous leave time.

CALNET, Inc. is an Equal Opportunity Employer. EEO/M/F/D/V