Principal Linux Systems Administrator Jobs

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Linux / Unix Systems Administrator

Cymertek Corporation

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Georgia, USA

Full-time

Linux / Unix Systems Administrator LOCATION Fort Eisenhower, GA 30905 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a dedicated and detail-oriented Linux / Unix Systems Administrator to join our team and ensure the stability, security, and efficiency of our systems infrastructure. In this role, you will be responsible for managing, monitoring, and maintaining Linux and Unix servers, troubleshooting system issues, and implementi
Posted 60+ days ago | Updated 4 hours ago

Linux / Unix Systems Administrator

Cymertek Corporation

•

Annapolis, Maryland, USA

Full-time

Linux / Unix Systems Administrator LOCATION Annapolis Junction, MD 20701 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a dedicated and detail-oriented Linux / Unix Systems Administrator to join our team and ensure the stability, security, and efficiency of our systems infrastructure. In this role, you will be responsible for managing, monitoring, and maintaining Linux and Unix servers, troubleshooting system issues, and impleme
Posted 60+ days ago | Updated 4 hours ago

Linux / Unix Systems Administrator

Cymertek Corporation

•

Aurora, Colorado, USA

Full-time

Linux / Unix Systems Administrator LOCATION Aurora, CO 80014 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a dedicated and detail-oriented Linux / Unix Systems Administrator to join our team and ensure the stability, security, and efficiency of our systems infrastructure. In this role, you will be responsible for managing, monitoring, and maintaining Linux and Unix servers, troubleshooting system issues, and implementing soluti
Posted 60+ days ago | Updated 4 hours ago

Sr Principal Systems Engineer - LINUX - Active Top Secret Required

General Dynamics

•

Washington, District of Columbia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: Systems Engineering Job Qualifications: Skills: Complex Systems, Microsoft Windows Server, Systems Engineering, Systems Management Certifications: CompTIA - Security+ CE - CompTIA Experience: 15 + years of related experience ship Required: Yes Job Description: Senior Principal Systems Engineer - Linux Design,
Posted 60+ days ago | Updated 4 hours ago

Linux System Administrator

Swanktek

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Richmond, Virginia, USA

Contract

KEY RESPONSIBILITIES In addition to other occasional tasks, the candidate s key responsibilities will be: Installing, building, maintaining, provisioning, upgrading, and enhancing servers running RHEL versions 7, 8, and 9.x, as well as OpenShift environments. Configuring and maintaining HPE ProLiant servers running SELinux, following performance and security best practices. Supporting and maintaining existing shell scripting tools and creating new scripts as needed. Collaborating with DBAs a
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Posted 2 days ago

Linux Systems Engineer -Sr. Member Engineering Staff

Lockheed Martin Corporation

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Moorestown, New Jersey, USA

Full-time

Job Description WHAT WE'RE DOING "We are leveraging emerging, digitally-enabled capabilities to lower cost, speed up development time and create original solutions to best serve our customers and stakeholders. We're bringing the 4th Industrial Revolution to every role in the company. Are you ready to invent the future? Lockheed Martin Rotary & Mission Systems is on a journey of digital transformation as we utilize our data, modernize our processes and advance technology to advance our position
Posted 17 days ago | Updated 4 hours ago

Network Systems Engineer - Secret Clearance-Linux/Windows

Liberty Personnel, Inc

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Horsham, Pennsylvania, USA

Full-time

Network Systems Engineer - Secret Clearance- Linux/Windows Join a dynamic and innovative technology company where your skills will be challenged, and creativity is welcomed. We offer a collaborative work environment focused on problem-solving with cutting-edge technologies. This role provides the perfect platform for individuals eager to make a tangible impact and grow in their field while supporting a diverse range of critical projects. **Key Qualifications:** - Secret clearance required, with
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Posted 3 days ago | Updated 2 days ago

Sr. Systems Engineer, Virtualization/Linux Engineering

Visa Inc.

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Highlands Ranch, Colorado, USA

Full-time

Company Description Visa is a world leader in payments and technology, with over 259 billion payments transactions flowing safely between consumers, merchants, financial institutions, and government entities in more than 200 countries and territories each year. Our mission is to connect the world through the most innovative, convenient, reliable, and secure payments network, enabling individuals, businesses, and economies to thrive while driven by a common purpose - to uplift everyone, everywhe
Posted 17 days ago | Updated 4 hours ago

Linux Systems Engineer

ALTA IT Services

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Herndon, Virginia, USA

Full-time

Linux Systems Engineer TS/SCI Clearance is required Herndon, VA - ONSITE ALTA ITS is seeking a Linux Systems Engineer (Tier ll) to work for a government contractor in the Herndon, VA area. This is an exciting opportunity to bring your skills to the table and learn new skills. This position is a part of a US-based operations team backed by expert international developers and application engineers. You will be directly involved in systems planning, installation, commissioning, site surveys, and
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Posted 10 days ago | Updated 1 hour ago

Principal Systems Administrator

SAIC

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Colorado Springs, Colorado, USA

Full-time

Job ID: 2504319 Location: COLORADO SPRINGS, CO, US Date Posted: 2025-06-24 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-time Shift: Day Job Travel: Yes, 10 % of the Time Minimum Clearance Required: TS/SCI Clearance Level Must Be Able to Obtain: TS/SCI with Poly Potential for Remote Work: No Description SAIC's Horizon 2 contract is seeking an energized and professional Principal Systems Administrator to support the contract's secure operating faciliti
Posted 60+ days ago | Updated 2 hours ago

SCITLS UNIX/Linux OS Administrator

General Dynamics

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Offutt Air Force Base, Nebraska, USA

Full-time

Type of Requisition: Pipeline Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Computer Servers, Enterprise IT, Information Technology (IT) Systems Certifications: None Experience: 8 + years of related experience ship Required: Yes Job Description: Seize your opportunity to make a personal impact as a SCITLS UNIX/Linux OS Administra
Posted 55 days ago | Updated 4 hours ago

Senior Linux System Administrator

Booz Allen Hamilton

•

Columbia, Maryland, USA

Full-time

Job Number: R0219640 Linux System Administrator, Senior The Opportunity: Your technical expertise makes you the team hero, solving one problem after another. What if you could use those skills to improve the technology supporting the Department of Defense? We're looking for a Cross Domain Platform System Administrator to help us design, deploy, and maintain Cross Domain Solutions for an enterprise environment that supports critical cybersecurity mission customers. As a Linux system administrato
Posted 60+ days ago | Updated 5 hours ago

Telecom Linux Systems Engineer

ALTA IT Services

•

Herndon, Virginia, USA

Full-time

Telecommunications Linux Systems Engineer TS/SCI clearance Herndon, VA - onsite As a Telecommunications Software Engineer, your day will focus on monitoring and analyzing the performance of core telecommunications networks spanning 2G through 5G technologies. You will work closely with a geographically distributed team, collaborating with operations and development staff to identify and remediate issues affecting system and network performance. Responsibilities include analyzing network behavi
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Posted 10 days ago | Updated 1 hour ago

Senior Systems Engineer - Linux

Photon

•

Rocklin, California, USA

Contract, Third Party

Senior Systems Engineer Rocklin, CA Design and support data networks for WSI data centers, corporate facilities, retail stores, distribution centers, call centers, and eCommerce environment. Design, develop, implement, and support network solutions for IT projects. Specific Responsibilities Participates and documents systems requirements and authors solution designs Reviews and provides feedback for system design solutions that will impact their area Participates in establishing strategies and s
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Posted 29 days ago | Updated 2 days ago

Linux System Administrator

Leidos

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Alexandria, Virginia, USA

Full-time

Leidos is seeking a System Administrator to support a large enterprise IT contract for the DOD. This role requires an individual that has technical experience with administering Linux and Windows servers within a VMware virtual environment. This individual should be detail oriented in order to capture customer inquiries appropriately. This role is responsible for interacting with other administrators to handle service inquiries and problems. Duties include examining customer problems and suggest
Posted 60+ days ago | Updated 4 hours ago

Linux System Administrator

Leidos

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San Diego, California, USA

Full-time

The Maritime Solution Systems Portfolio within the Maritime Systems Division (MSD) is seeking an experienced, dynamic, and highly capable Linux system administrator to join the Leidos team at a customer site in San Diego, CA. The business activities within this portfolio include underwater vehicle systems, maritime sensors, supporting information technology and engineering services for complex maritime applications, and the development and support of underwater data acquisition and telemetry sys
Posted 60+ days ago | Updated 4 hours ago

Systems Analyst - Unix/Linux

Maximus, Inc.

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Maryland, USA

Full-time

Description & Requirements Maximus is seeking a Telecommunications Analyst to provide expertise to a federal client in support of their mission critical systems in defense of our Homeland. This person will work with a collaborative team to provide expertise in the design, implementation, and maintenance of systems and technologies for a federal client's critical communication needs. This position is on-site and requires a Secret Clearance. Maximus TCS (Technology and Consulting Services) Inter
Posted 35 days ago | Updated 11 hours ago

Systems Administrator

Robert Half

•

Manchester, New Hampshire, USA

Full-time

Description Join our team as a Devops Engineer / Linux Systems Administrator, where you'll maintain and optimize a Linux-based infrastructure, ensuring peak performance and rock-solid reliability. Your expertise in managing CI/CD pipelines will streamline our development process, turning code into deployment magic. Responsibilities: Manage and troubleshoot Linux systems with ninja-like precision. Build, maintain, and optimize CI/CD pipelines to keep deployments swift and smooth. Monitor system
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Posted 9 days ago | Updated 1 hour ago

Intermediate AWS Cloud Systems Operations Administrator

Maximus, Inc.

•

San Antonio, Texas, USA

Full-time

Description & Requirements Maximus is seeking an Intermediate AWS Cloud Systems Operations Administrator focused on managing AWS workloads, overseeing system deployment, security, and compliance. This administrator will use AWS tools to ensure systems run efficiently, troubleshooting as needed. Their expertise is vital for maintaining DoD system integrity and performance on the cloud. This position is on-site and requires an active TS/SCI security clearance. Maximus TCS (Technology and Consulti
Posted 20 hours ago | Updated 11 hours ago

Senior Linux Systems Engineer

Apple, Inc.

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No location provided

Full-time

Apple is where individual imaginations gather together, committing to the values that lead to great work. Every new product we build, service we create, or Apple Store experience we deliver is the result of us making each other's ideas stronger. That happens because every one of us shares a belief that we can make something wonderful and share it with the world, changing lives for the better. It's the diversity of our people and their thinking that inspires the innovation that runs through every
Posted 59 days ago | Updated 4 hours ago