Linux Systems Administrator II

CACI International Inc; Fort Meade (MD); On-site; USD 103,800 - 218,100; Full time

Job summary

CA CI International Inc. Fort Meade, MD is seeking a Linux Systems Administrator II to support a critical mission. This role involves day‑to‑day Linux system administration, deploying and securing Linux servers, and maintaining virtualization and network resources.

Candidates should have 3+ years of Linux admin experience, Red Hat experience, CompTIA Security+, and a Bachelor's degree; ten years SA experience may substitute for a degree. Competitive salary and benefits offered.

Qualifications

• Proficient with Linux, including hands‑on experience with Red Hat Enterprise Linux (RHEL).
• Minimum of three (3) years of recent Linux system administration experience (within the last 3 years).
• Experience patching and upgrading Linux servers and networking resources.
• Virtualization/VM experience.
• COMPTIA Security+ certification.

Responsibilities

• Perform day‑to‑day Linux system administration tasks across enterprise environments.
• Deploy, configure, secure, and maintain Linux servers and associated services.
• Monitor, patch, and upgrade Linux servers and network‑connected resources (routers, switches, firewalls).
• Maintain and upgrade virtualized environments, including VMs and underlying hardware resources.
• Implement and support security compliance controls and document non‑applicable items as required.
• Assist with installation, configuration, and integration of new or replacement Linux‑based hardware and software.
• Integrate hardware/software solutions into existing network infrastructure.
• Support the decommissioning and removal of outdated or replaced systems.
• Maintain accurate documentation of system inventory changes and configuration updates.

Skills

Linux

RHEL

Virtualization

Security+

Education

Bachelor's degree in a technical discipline

Ten years SA experience may substitute for Bachelor's degree

Tools

VMware

Nutanix

Rubrik

Nomad

Ansible

LibreNMS

NetBox

Job description

Job Title: Linux Systems Administrator II

Job Category: Information Technology

Time Type: Full time

Minimum Clearance Required to Start: TS/SCI with Polygraph

Employee Type: Regular

Percentage of Travel Required: None

Type of Travel: None

The Opportunity

CACI is seeking a Linux Systems Administrator II to perform system administration functions in support of a critical mission based in Fort Meade, MD. This role provides the opportunity to support enterprise infrastructure, enhance system reliability, and contribute to secure, mission‑focused operations. CACI values technical excellence, integrity, and a commitment to supporting our customers’ most important challenges.

Responsibilities

• Perform day‑to‑day Linux system administration tasks across enterprise environments.
• Deploy, configure, secure, and maintain Linux servers and associated services.
• Monitor, patch, and upgrade Linux servers and network‑connected resources (routers, switches, firewalls).
• Maintain and upgrade virtualized environments, including VMs and underlying hardware resources.
• Implement and support security compliance controls and document non‑applicable items as required.
• Assist with installation, configuration, and integration of new or replacement Linux‑based hardware and software.
• Integrate hardware/software solutions into existing network infrastructure.
• Support the decommissioning and removal of outdated or replaced systems.
• Maintain accurate documentation of system inventory changes and configuration updates.

Qualifications

Required:

• Proficient with Linux, including hands‑on experience with Red Hat Enterprise Linux (RHEL).
• Minimum of three (3) years of recent Linux system administration experience (within the last 3 years).
• Experience patching and upgrading Linux servers and networking resources.
• Virtualization/VM experience.
• COMPTIA Security+ certification.

Education & Experience Requirements

• Ten (10) years experience as a Systems Administrator in programs and contracts of similar scope, type, and complexity is required.
• Bachelor’s degree in a technical discipline from an accredited college or university is required.
• Five (5) years of additional SA experience may be substituted for a Bachelor’s degree.

Desired

• Dell and HPE Linux servers; Juniper and Cisco routers, switches, and firewalls; Palo Alto firewalls; Ansible; Nutanix – VM management; Rubrik – data storage; Nomad containers; SALT scripts; LibreNMS; NetBox.
• CSP (Cloud Service Provider) – AWS and/or Azure.

Pay Range

There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Competitive compensation, benefits and learning and development opportunities are offered. Comprehensive benefits such as healthcare, wellness, financial, retirement, family support, continuing education, and time off are provided.

The Proposed Salary Range For This Position Is

$103,800 - $218,100

CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.