Senior Systems Administrator — Windows/Linux & Security Ops

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

Benefits offered by this job

Equal Opportunity Employer

Job summary

Ashburn Consulting LLC is seeking a seasoned IT administrator to secure, monitor, and sustain government‑grade infrastructure at Mount Weather. You will manage Windows Server, Active Directory, and Linux environments, ensuring patching, hardening, and continuity for critical FEMA programs.

The role requires top‑level clearance, U.S. citizenship, and hands‑on experience with virtualization, monitoring, and change control.

Qualifications

• Active final Top Secret clearance with SCI eligibility.
• Three to five years of hands‑on system administration or secure infrastructure experience.
• Hands‑on Windows Server and Active Directory administration, with working Linux knowledge.
• Experience with virtualization, backup/recovery, patch management, system hardening, logging and monitoring.
• Familiarity with DHS EA/TRM and IPv6 requirements.

Responsibilities

• Administer, monitor, troubleshoot, patch, harden, upgrade, and maintain Windows Server, Active Directory, workstations, applications, and related infrastructure; provide Linux support.
• Manage accounts, permissions, authentication, Group Policy, access controls, approved software, services, configurations, and security settings under Government direction.
• Support virtualization, backup and recovery, patch management, system hardening, vulnerability scanning, STIG implementation, audit/authorization response, log review, health checks, and capacity/performance monitoring.
• Assist with FEMA OCIO change control and configuration management across development, acquisition, operation, and disposal; maintain baselines, change records, diagrams, SOPs, training materials, administrator/recovery guides, and test records.
• Track, monitor, and maintain high‑value communications assets, GFE, software, licenses, and system‑of‑record entries in accordance with FEMA Property Management Directive 119‑7.
• Support integration, user‑acceptance and performance testing, operational‑readiness and continuity exercises, post‑change validation, incident response, fault isolation, and service restoration.
• Ensure hardware, software, network services, and technical artifacts comply with DHS Enterprise Architecture, TRM Standards and Products Profile, IPv6, and applicable DHS/FEMA security requirements.
• Coordinate with network, RF/SATCOM, cybersecurity, logistics, program‑management, vendor, user, and Government teams while protecting classified and sensitive information.

Skills

CCNA

Windows Server

Active Directory

Linux

Virtualization

Group Policy

PowerShell

VMware

Education

Bachelor’s degree preferred

Tools

PowerShell

Group Policy

VMware

Job description

Ashburn Consulting LLC is seeking a seasoned IT administrator to secure, monitor, and sustain government‑grade infrastructure at Mount Weather. You will manage Windows Server, Active Directory, and Linux environments, ensuring patching, hardening, and continuity for critical FEMA programs.

The role requires top‑level clearance, U.S. citizenship, and hands‑on experience with virtualization, monitoring, and change control.