Senior Systems Administrator – TS Clearance, DoD RMF

Trinzic; Chandler (AZ); On-site; USD 130,000 - 170,000; Full time

Job summary

KBR’s National Security Solutions team is seeking a Systems Administrator to support complex DoD networks and trusted environments. You will manage Windows/Linux systems, virtualization stacks, and security tooling while aligning with RMF requirements.

You’ll collaborate with distributed teams to maintain operational readiness and implement enhancements. Responsibilities include patching, backups, SOP documentation, and ensuring regulatory compliance across multiple sensitive networks.

Qualifications

• Active Top Secret clearance required.
• Min. 10 years of Systems Administrator experience.
• Technical bachelor’s degree (experience may substitute for degree).
• Able to lift up to 35 lbs.
• Willing to travel up to 20%.
• Strong background in virtualization (VMware), Windows, Linux, and scripting.

Responsibilities

• Administer computer systems hardware, network gear, software, and virtualization infrastructure (servers, desktops, zero clients, storage).
• Install, support, upgrade, and configure systems (Windows/Linux/VMWare/SQL Server, Horizon UAG, VDI).
• Maintain security and recovery procedures (patching, STIGs, backups).
• Administer infrastructure including HBSS, syslog servers, databases, ACAS, etc.
• Upgrade systems and processes for enhanced functionality and security.
• Ensure compliance with data security policies and RMF directives.

Skills

Virtualization

Windows Administration

Linux Administration

Active Directory

DNS

Scripting

RMF/Compliance

Documentation

Education

Technical bachelor’s degree

Tools

VMware vSphere

VxRail

NSX

Horizon UAG

VDI

HBSS

ACAS

Job description

KBR’s National Security Solutions team is seeking a Systems Administrator to support complex DoD networks and trusted environments. You will manage Windows/Linux systems, virtualization stacks, and security tooling while aligning with RMF requirements.

You’ll collaborate with distributed teams to maintain operational readiness and implement enhancements. Responsibilities include patching, backups, SOP documentation, and ensuring regulatory compliance across multiple sensitive networks.