Linux Systems Administrator II

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

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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• Support the decommissioning and removal of outdated or replaced systems.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:

Should have working knowledge, able to use and/or support, with some (preferably most) of the following resources and tools:

• 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.

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What You Can Expect:

A culture of integrity.

At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.

An environment of trust.

CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.

A focus on continuous growth.

Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.

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. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.

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.