Systems Administrator – Linux, Automation Focus

KBR, Inc.

. Provide systems administration and infrastructure automation support to TRMC ADTR and related JMETC, JSN, JMN, SDREN, and DREN environments .

Posted 10/1/2026full-timeUnited StatesSeniorLead💰 $120,000 - $170,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates extensive expertise in Linux-centric server architecture, systems administration, and automation using Ansible, with a strong focus on security compliance and vulnerability management in DoD environments.

Highest-signal resume keywords

Linux System AdministrationAnsible Automation DevelopmentVMware vSphere AdministrationDISA STIG ImplementationTop Secret Clearance

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

RHEL System ArchitectureBash/Shell ScriptingStorage Management (LVM)Containerization (Docker, Podman, Kubernetes)Virtualization (VMware vCenter)SCAP Tools HardeningRed Hat Satellite ManagementNetworking (Layer 2/3)Windows Server AdministrationACAS/Nessus Vulnerability Scanning

Tools & Technologies

AnsibleRed Hat SatelliteVMware vSphereDockerPodmanKubernetesTrellix (HBSS/EPO)Active DirectoryGroup PolicyDNS

Certifications & Qualifications

CompTIA Security+CASP+CISSPRHCSARHCELinux+

Industry Keywords

DoD RMFCybersecurity ComplianceContinuous MonitoringVulnerability ManagementSOP Authoring

Tech Stack

Tools & technologies

AnsibleCyber SecurityDNSDockerKubernetesLinuxOpenShiftShell ScriptingVMware

About the role

Key responsibilities & impact

Provide systems administration and infrastructure automation support to TRMC ADTR and related JMETC, JSN, JMN, SDREN, and DREN environments
Design, deploy, and maintain Linux-centric server architectures across distributed test networks
Install, configure, optimize, and maintain RHEL, Rocky, and CentOS systems and core services across bare-metal and virtualized environments
Develop, test, and maintain reusable Ansible playbooks, roles, and collections for provisioning, hardening, patching, and configuration drift remediation
Support Docker, Podman, and Kubernetes containerized environments and workload lifecycle management
Automate DISA STIG implementation and audit verification; remediate ACAS/Nessus vulnerability findings
Manage software repositories, system updates, and image baselines using Red Hat Satellite, Foreman, or equivalent mirrors
Administer VMware vSphere/vCenter, storage systems, networking hardware, and secondary Windows services
Maintain TRMC cybersecurity, RMF continuous monitoring, HBSS/Trellix, and centralized logging/syslog compliance
Author SOPs, Ansible execution guides, and architecture/network diagrams for knowledge transfer

Requirements

What you’ll need

Must have an active Top Secret clearance
Minimum of 10 years of experience in a Systems Administrator or Systems Engineering role
Technical Bachelor’s degree; relevant professional experience may be substituted in lieu of a degree
In-depth knowledge of Enterprise Linux (RHEL 7/8/9) system architecture, storage management (LVM), systemd, firewalld, SELinux policies, and Bash/shell scripting
Hands-on experience developing, testing, and debugging production Ansible playbooks, inventory structures, and automation workflows
Proven experience administering virtualization platforms, preferably VMware environments (vSphere, vCenter, vDS, NSX)
Ability to lift up to 35 lbs
Willingness to travel up to 20%
Experience with Docker, Podman, Kubernetes, or Red Hat OpenShift
Experience deploying and operating Red Hat Satellite/Capsule servers or automated Kickstart workflows
Experience hardening Linux environments using SCAP tools, applying DISA STIGs, and working within DoD RMF-accredited enclaves
Working knowledge of ACAS/Nessus vulnerability scanners and Trellix (HBSS/EPO) Linux agents
Current DoD 8570/8140-compliant baseline certification, such as CompTIA Security+, CASP+, or CISSP
Linux Computing Environment certification, such as RHCSA, RHCE, or Linux+
Familiarity with Layer 2/3 networking, firewall operations, and DoD networks including DREN and SDREN
Experience supporting Windows Server environments, including Active Directory, Group Policy, DNS, and PKI

Benefits

Comp & perks

401K plan with company match
Medical insurance
Dental insurance
Vision insurance
Life insurance
AD&D insurance
Flexible spending account
Disability benefits
Paid time off
Flexible work schedule
Professional training and development
Potential bonuses, commissions, sign-on bonus, relocation benefits, short-term incentives, long-term incentives, or discretionary payments for exceptional performance