Linux Infrastructure / Systems Administrator Bethesda, MD, US

CACI International Inc; Bethesda (MD); Hybrid; USD 87,000 - 182,000; Full time

Job summary

CACI International Inc in Bethesda, MD is seeking a Linux Infrastructure / Systems Administrator to maintain Linux servers and ensure readiness for DoD workloads. The role emphasizes automation, patching, security hardening, and incident resolution within a hybrid work model.

Ideal candidates have 8+ years of Linux administration, strong scripting (Ansible, Bash, Python), and RHCE certification, with Docker/Kubernetes experience to support containerized apps.

Qualifications

• 8+ years Linux administration experience.
• RHCE or equivalent OS certification.
• Strong networking fundamentals and CLI proficiency.
• Advanced scripting with Ansible, Bash, and Python; Perl is a plus.

Responsibilities

• Install and configure Linux servers; patch lifecycle.
• Write/update kickstart images and manage deployments.
• Support applications and enterprise automation (AAP, Satellite, IDM, Splunk).
• Enforce security hardening RMF/DISA STIGs; incident response.
• Root-cause analysis for outages; forensics & log correlation.
• Containerization with Docker/Kubernetes; CI/CD integration.
• Design HA and clustering; storage (SAN/NAS) considerations.
• Work with virtualization (VMware/Hyper-V) and doc architecture.

Skills

Ansible

Bash

Python

Perl

Networking fundamentals

CLI proficiency

RHCE

Education

RHCE (Red Hat Certified Engineer)

Tools

Docker

Kubernetes

Job description

Hybrid## Linux Infrastructure / Systems AdministratorBethesda, MD, USApply NowFind out how well you match with this jobJob ID: 333912Job Title: Linux Infrastructure / Systems AdministratorJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: Top SecretEmployee Type: RegularPercentage of Travel Required: NoneType of Travel:\\* \\* \\***The Opportunity:** Support NSWC Carderock by maintaining their Linux infrastructure. Ensure combat readiness through the cutting edge application of technology. **Responsibilities:** • Install/configure Linux server • Write and update custom kickstart image • Patch management (full life cycle, Satellite server) • Support application deployments / Enterprise Automation (AAP, Satellite, IDM, Splunk) • Security hardening, STIG remediation, Compliance frameworks (RMF, DISA STIGs) • Root cause analysis of complex outages • Forensics & log correlation • Kernel-level troubleshooting • Containerization (Docker, Kubernetes) • CI/CD pipeline integration • Architecture documentation • Storage engineering (SAN/NAS, multipathing) • Infrastructure Design and Hardening • Design HA and clustering solutions • Work with virtualization (VMware, Hyper-V) **Qualifications:** Advanced scripting & troubleshooting (ansible playbooks, bash, python) OS Certification: Red Hat Certified Engineer (RHCE) 8+ years working in Linux Administration Strong Networking fundamentals (routing, firewalls, DNS) Strong CLI proficiency *Desired:* 3+ years working with Ansible Advanced scripting in perl-**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:$86,600 - $181,800*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.*