Shadowgate Partners is seeking a Linux System Administrator for our client, a leading provider of Signals Intelligence (SIGINT) and specialized communications systems to the Intelligence Community, with over 40 years of deep expertise across strategic and tactical missions. This is a fully funded position with the client serving as prime on the contract, available for immediate start. This role is 100% onsite at the client's facility either in Fairfax, VA or Denver, CO. The primary responsibili…

Be visionary Teledyne Technologies Incorporated provides enabling technologies for industrial growth markets that require advanced technology and high reliability. These markets include aerospace and defense, factory automation, air and water quality environmental monitoring, electronics design and development, oceanographic research, deepwater oil and gas exploration and production, medical imaging and pharmaceutical research. We are looking for individuals who thrive on making an impact and w…

WE ARE HIRING OWNERS Set of X is led by industry veterans who see government contracting as a good community with plenty of opportunity to go around. With a shared desire to give back, grow the community, and do great work, the Set of X team is building an elite group of engineers with a strong sense of shared responsibility and ownership Because who you work with matters. ________________________________________________________________________ The candidate will participate in a new long-term …

Job ID: 2614545 Location: El Segundo, CA, US Date Posted: 2026-07-14 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: ORA_ON_SITE Description We are seeking an experienced RHEL 8 Linux Systems Administrator specializing in Red Hat Enterprise Linux (RHEL) 8 or later to support and maintain secure, mi…

Job Description This position is participating in our External Referral Program. If you know somebody who may be a fit, click here to submit a referral. If your referral is hired, you'll receive a $3000 payment! WHAT WE'RE DOING: Lockheed Martin, Cyber & Intelligence invites you to step up to one of today's most daunting challenges: the evolving threat of cyber warfare. As a cyber security professional at Lockheed Martin, you'll protect the networks that our citizens and the world depend upon e…

Description We are seeking a talented Senior Linux Systems Administrator, who will be responsible for the servers that process data from a global network of buoys, managed by the National Data Buoy Center (NDBC). This position is located at the NDBC facility at the Stennis Space Center in Mississippi. While some telework is authorized, regular in-office presence is required, including the ability to come into the office in the event of an issue requiring hands-on resolution. Responsibilities an…

Linux Systems Administrator TS SCI w/ Poly with a Sec Located in Aurora, CO Program Background: ALKU's Client is prime on a mission-critical effort that provides Tier 2 software sustainment and maintenance for across a multitude of operating systems and applications that span over five main domains. This program is seeking candidates at all levels who are willing to learn, grow, lead and teach while working collaboratively with their team to support the Nation's security. They will troubleshoo…

Top Skills' Details 1) Advanced Linux systems administration and troubleshooting 2) Networking and server infrastructure management 3) Security hardening and compliance in mission-critical environments Must be able to go through Public Trust clearance process. Candidates must be a US Citizen or possess a Green Card (no Work Visa allowed) and must pass a Dept of Commerce Background Check/POT Clearance plus be able to obtain a Common Access Card for use with the NDBC Computer and access to the ND…

MANTECH seeks a motivated, mission-focused Senior Linux Systems Administrator to join our team in Chantilly, VA. As a Linux Systems Administrator, you will help maintain and enhance the Sponsor's Linux environment alongside a talented team. You will be responsible for the operating system software and its seamless integration with hardware and applications across the organization. Responsibilities include but are not limited to: * Planning, testing, installing, integrating, and maintaining new …

Linux System Administrator Annapolis Junction Apply Adventure Technology Services is a small IT contractor headquartered in Hanover, MD that provides high-level solutions to Federal Government customers and are always looking for high-quality professionals to join our team. We provide competitive benefits and compensation packages including 8% 401(k) match, 160hrs PTO, tuition assistance, and professional development/career road-mapping. https://www.adventuretech.us/career-opportunities Positio…

We are seeking a highly skilled and motivated Linux System Administrator to join our team supporting a critical government computer system. This role is responsible for the management, maintenance, and security of a large-scale, enterprise-level infrastructure. The environment is heavily reliant on VMware for virtualization, BMC TrueSight Server Automation (TSSA) for compliance and patching, and Ansible for robust configuration management and automation. The ideal candidate will be a proactive …

Job Title: Linux Systems Administrator 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 to support a long term, multi-year, high performing program. A qualified candidate will assist in the installation, configuration and deployment of a new PeopleSoft implementation. Responsibilit…

We are seeking a skilled and detail-oriented Linux System Administrator to join our IT infrastructure team. The ideal candidate will have strong experience managing enterprise Linux environments and supporting storage, backup, security, and patching systems. This role requires hands-on expertise with IBM Enterprise Storage, Veritas NetBackup, and vulnerability management tools, along with a solid understanding of system hardening and package management. Key Responsibilities: Administer, maintai…

TENAX Technologies is currently seeking a Linux System Administrator to provide technical support at Aberdeen Proving Ground. The Linux System Administrator will provide high-level service to end-users while troubleshooting advanced hardware, software, and network issues for the Army Research Lab, which operates 24/7/365. The ideal candidate must possess excellent customer service skills and the ability to effectively communicate technical information to non-technical users. Key Responsibilitie…

Barbaricum is seeking a Linux Systems Administrator to manage and maintain mission-critical systems for TRADOC G2 operations at Fort Eustis, VA. The selected candidate will provide technical expertise in maintaining Linux-based environments in secure settings. Responsibilities: * Manage Linux-based systems, ensuring stability, security, and compliance. * Perform software updates, system hardening, and patch management. * Troubleshoot hardware and software issues in secure environments. * Develo…

Description: Red Arch Solutions is seeking a skilled and detail-oriented Linux System Administrator to join our IT infrastructure team in Annapolis Junction, Maryland. The ideal candidate will have strong experience managing enterprise Linux environments and supporting storage, backup, security, and patching systems. This role requires hands-on expertise with IBM Enterprise Storage, Veritas NetBackup, and vulnerability management tools, along with a solid understanding of system hardening and p…

Position Overview Provide administration, support, and operational excellence for Red Hat Enterprise Linux (RHEL) systems within a secure, mission-critical environment. Assist in integrating and managing hybrid infrastructure leveraging AWS cloud services. Key Responsibilities Install, configure, patch, and maintain Red Hat Enterprise Linux (RHEL) systems in both virtualized and physical environments Manage AWS components such as EC2, ELB, Auto Scaling, and other relevant services. Automate sys…

Job Title Linux Systems Administrator Overview EverWatch is a government solutions company providing advanced defense, intelligence, and deployed support to our country's most critical missions. We are a full-service government solutions company. Harnessing the most advanced technology and solutions, we strengthen defenses and control environments to preserve continuity and ensure mission success. EverWatch employees are focused on tackling the most difficult challenges of the US Government. We…

Job Number: R0234152 Linux Systems Administrator 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 U.S. Federal Government? We're looking for a cross domain specialist to help us design, deploy, and maintain Cross Domain Solutions for an enterprise environment. As a Linux System Administrator on our project, you'll constantly look for ways to make the infrastructure be…

Salary Range: L2 $165,000 - $172,000 yearly L3 $200,000 - $210,000 year ​ Description: The Linux System Administrator will fill a critical gap on a small team of engineers working to build an Infrastructure-as-a-Service (IaaS) system. The candidate will participate in a new long-term effort to consolidate a diverse set of systems into a new cohesive solution that improves system manageability and security, while providing enhanced capability with a strong focus on improved user experience. The …