Senior DoD Systems Administrator (Azure & Linux)

Nationwide IT Services, Inc.; Fairfax (VA); On-site; USD 120,000 - 150,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

Life and disability insurance

401(k) plan with employer match

Paid holidays and PTO

Commuter benefits

EAP

Job summary

Nationwide IT Services (NIS) seeks a Senior Systems Administrator to manage Windows and Linux servers in Azure for a DoD environment. The role requires secret clearance, robust experience, and strong security controls to ensure high availability and compliance.

The candidate will maintain infrastructure, perform patching, monitor performance, and support disaster recovery and modernization efforts across multiple DoD sites.

Qualifications

• 10+ years of specialized application systems administration experience, including at least four years in hands‑on server administration.
• Active DoD/DoD 8140 baseline certification and security certifications.
• Experience with Windows and Linux server administration in Azure environments and DoD settings.

Responsibilities

• Administer, maintain, and optimize Windows Server and RHEL systems within Microsoft Azure environments.
• Monitor and ensure availability of enterprise infrastructure including VMs, databases, and web servers.
• Perform software installation, configuration, maintenance, patching, upgrades, and troubleshooting.
• Enforce DoD cybersecurity policies and STIGs; apply vulnerability remediation.
• Coordinate with government teams on infrastructure issues and performance optimization.
• Support Azure cloud administration including VM management and resource optimization.
• Maintain documentation and assist with migration to modernized environments.

Skills

Windows Server

RHEL

Azure

Security+

AZ-104

STIGs

Vulnerability remediation

DoD compliance

Education

BA/BS in technical field

Tools

Microsoft Azure

Job description

Nationwide IT Services (NIS) seeks a Senior Systems Administrator to manage Windows and Linux servers in Azure for a DoD environment. The role requires secret clearance, robust experience, and strong security controls to ensure high availability and compliance.

The candidate will maintain infrastructure, perform patching, monitor performance, and support disaster recovery and modernization efforts across multiple DoD sites.