Senior Systems Administrator – TS/SCI, Windows & Linux

Ashburn Consulting LLC; Leesburg (VA); On-site; USD 120,000 - 160,000; Full time

Job summary

Ashburn Consulting LLC in the Washington, DC metro area seeks a highly qualified Systems Administrator to secure and sustain FEMA CCD infrastructure at Mount Weather. You will administer Windows Server/Active Directory, manage Linux, virtualization, patching, and security compliance in a sensitive, classified environment.

The role supports OCIO change control, COOP SATCOM, and continuity exercises. We require 3–5 years of hands-on system administration, strong Windows/AD admin skills, Linux

Qualifications

• Active final Top Secret clearance with SCI eligibility.
• 3–5 years of hands-on system-administration experience.
• Windows Server and Active Directory administration, with Linux knowledge.
• Experience with virtualization, backup/recovery, patch management, hardening, logging and monitoring.
• FEMA/DHS security requirements knowledge including IPv6.
• Willingness to commute to Mount Weather and support after-hours maintenance.

Responsibilities

• Administer, monitor, troubleshoot, patch, harden, upgrade, and maintain Windows Server, AD, and related infrastructure; provide Linux support.
• Manage accounts, permissions, authentication, GPOs, access controls, and approved software under government direction.
• Support virtualization, backup/recovery, patch management, vulnerability scanning, and log health checks.
• Coordinate change control, maintain baselines, and prepare SOPs and recovery guides.
• Ensure compliance with DHS Enterprise Architecture, IPv6, and FEMA security requirements.

Skills

CCNA certification

Windows Server admin

Active Directory admin

Linux knowledge

Virtualization

Backup & recovery

Patch management

Vulnerability remediation

Security incident response

Change control processes

Education

Bachelor's degree preferred

Tools

PowerShell

Group Policy

VMware

Job description

Ashburn Consulting LLC in the Washington, DC metro area seeks a highly qualified Systems Administrator to secure and sustain FEMA CCD infrastructure at Mount Weather. You will administer Windows Server/Active Directory, manage Linux, virtualization, patching, and security compliance in a sensitive, classified environment.

The role supports OCIO change control, COOP SATCOM, and continuity exercises. We require 3–5 years of hands-on system administration, strong Windows/AD admin skills, Linux