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M3 Systems Administrator (RHEL/Linux) - TS/SCI Required

General Dynamics

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Charlottesville, Virginia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Active Directory (AD), Disaster Recovery (DR), Linux Certifications: None Experience: 10 + years of related experience ship Required: Yes Job Description: M3 Systems Administrator (RHEL/Linux) - TS/SCI Required Transform technology into opport
Posted 60+ days ago | Updated 8 hours 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 15 days ago | Updated 8 hours ago

Senior Linux System Administrator

Leidos

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Orlando, Florida, USA

Full-time

Are you an experienced Senior Linux System Administrator looking for your next challenge? Your search ends here! We have an exciting opportunity for you to support several Programs in the Orlando Area. Your expertise will guide the definition, implementation, and delivery of capability focused on Cyber Training systems and Synthetic Environment Generation. You'll have the chance to work with a broad range of systems, providing overall support for various critical systems. Join our team and make
Posted 3 days ago | Updated 8 hours ago

Wi-Fi Software Engineer

Apple, Inc.

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No location provided

Full-time

Join our Sensing and Connectivity team and drive innovation that matters! We build and seamlessly integrate technologies that enrich people's lives and deliver the absolute best user-experience. As part of the Wi-Fi software development team, we make decisions that influence the connectivity experience on products people use every single day, across the world. Are you a software development enthusiast? Are you passionate about internet-enabled devices and networking protocols? Do you want to lea
Posted 49 days ago | Updated 8 hours ago

Senior Software Engineer, Embedded Linux (Hybrid-Puerto Rico)

RTX Corporation

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Remote or Aguadilla, Aguadilla, Puerto Rico

Full-time

Date Posted: 2025-05-09 Country: United States of America Location: HPR01: Collins Puerto Rico- Aguadilla Road 110 North Km 28.8 San Antonio Industrial Park, Aguadilla, PR, 00603 USA Position Role Type: Hybrid U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required.Security Clearance: DoD Clearance: Secret Collins Aerospace has an exciting opportunity for an experienced Software Engineer. In this
Posted 49 days ago | Updated 8 hours ago

Linux Systems Administrator

GovCIO

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San Antonio, Texas, USA

Full-time

Overview GovCIO is currently hiring for Linuxs System Administrator to establish and maintain smooth operation of computer systems (to include operating systems, software and hardware) on AF JWICS networks. This position will be located in San Antonio, TX. and will be an onsite position. Responsibilities Establishes and maintains smooth operation of computer systems (to include operating systems, software and hardware) in networked or stand-alone configurations, maintains system integrity, an
Posted 13 days ago | Updated 5 hours ago

Systems Administrator - Linux/Windows

GovCIO

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Remote

Full-time

Overview Provide on-going support for the administration of the core system applications and perform operational tasks such as monitoring system resources and perform routine maintenance tasks in support of 24x7 life cycle applications to include on-call support. Work location is hybrid with periodic customer site work activities. Must be willing to work nights, have a Security+ certification, and an active Top Secret clearance. Responsibilities Position Description: In this role you will: Pr
Posted 33 days ago | Updated 5 hours ago

Classified Linux Systems Administrator

Johns Hopkins University AppliedPhysicsLaboratory

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Laurel, Maryland, USA

Full-time

Description Do you thrive in a fast-paced, dynamic classified environment? Do you want to be empowered to take ownership and stake in the overall engineering and operations of the IT infrastructure? Are you interested in learning new technologies and creating new IT capabilities? If so, we're looking for someone like you to apply and join our team at APL! We are ranked as one of Computerworld 's Top Places to Work in IT for 6 years running, and we are seeking a Linux Systems Administrator t
Posted 40 days ago | Updated 8 hours ago

Linux System Administrator

Zachary Piper Solutions, LLC

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Aberdeen, Maryland, USA

Full-time

Piper Enterprise Solutions is seeking an Linux System Administrator to join a stable and well known team located at Aberdeen Proving Ground. Responsibilities of the Linux System Administrator: Install, configure, and support an organization's local area network (LAN), wide area network (WAN), and Internet systems or a segment of a network system. Monitor network to ensure network availability to all system users and may perform necessary maintenance to support network availability. May monitor
Posted 26 days ago | Updated 23 days ago

Linux Administrator *No C2C*

TEKsystems c/o Allegis Group

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Ellabell, Georgia, USA

Full-time

Description Provides technical leadership and is responsible for establishing the direction for maintenance, standards, life-cycle management, design, and implementation approaches for the company's servers and related infrastructure. Creates, evaluates, and implements plans and design proposals for high-impact IT solutions and their use involving leading-edge technologies and methods, considering key factors such as their long-term effectiveness (service delivery and cost), practicality, techni
Posted 12 days ago | Updated 5 hours ago

Production Reliability Engineer/Linux

Early Warning Services, LLC

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Scottsdale, Arizona, USA

Full-time

At Early Warning, we've powered and protected the U.S. financial system for over thirty years with cutting-edge solutions like Zelle , Paze?, and so much more. As a trusted name in payments, we partner with thousands of institutions to increase access to financial services and protect transactions for hundreds of millions of consumers and small businesses. Positions located in Scottsdale, San Francisco, Chicago, or New York follow a hybrid work model to allow for a more collaborative working env
Posted 17 hours ago | Updated 5 hours ago

Senior Systems Administrator (Linux and Windows)

General Dynamics

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Mary Esther, Florida, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Interim Secret Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Linux, System Administration, Virtual Environments, Virtualization, VMware Certifications: None Experience: 3 + years of related experience ship Required: Yes Job Description: Job Description: Seize your opportunity to make a personal impact as a Senior S
Posted 6 days ago | Updated 8 hours ago

Systems Administrator - Linux/Windows

GovCIO

•

Remote

Full-time

Overview Provide on-going support for the administration of the core system applications and perform operational tasks such as monitoring system resources and perform routine maintenance tasks in support of 24x7 life cycle applications to include on-call support. Work location is hybrid with periodic customer site work activities. Must be willing to work nights, have a Security+ certification, and an active Top Secret clearance. Responsibilities Position Description: In this role you will: Pr
Posted 37 days ago | Updated 5 hours ago

Principal Linux Administrator

Raytheon

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El Segundo, California, USA

Full-time

Date Posted: 2025-06-23 Country: United States of America Location: CA222: 2006 E El Segundo Blvd BldgE04 2006 East El Segundo Boulevard Building E04, El Segundo, CA, 90245 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance: DoD Clearance: Top Secret At Raytheon, the foundation of everything we do is rooted in our values and a hi
Posted 60+ days ago | Updated moments ago

Senior Software Engineer - Embedded Linux (Onsite)

RTX Corporation

•

Cedar Rapids, Iowa, USA

Full-time

Date Posted: 2025-04-23 Country: United States of America Location: HIA32: Cedar Rapids, IA 400 Collins Rd NE , Cedar Rapids, IA, 52498-0505 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required.Security Clearance: DoD Clearance: Secret Senior Software Engineer - Embedded Linux (Onsite) Job Summary: As a Senior Software Engineer in this organization, you will be
Posted 56 days ago | Updated 8 hours ago

Linux Systems Administrator

Leidos

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Pearl City, Hawaii, USA

Full-time

Leidos is seeking a candidate to fill a Linux System Administrator position supporting DISA's GSM-O II contract at Ford Island, Hawaii. The candidate will maintain the smooth operation of multi-user computer systems running Redhat Linux but also includes Windows Server on a global network management system. Working with server farms as well as working with systems in a cloud environment. Provides support on a M-F business hours schedule, also responsible for on-call, extended hour, and weekend s
Posted 53 days ago | Updated 8 hours ago

Software Development Engineer II, Amazon Linux

Amazon Development Center U.S., Inc.

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Seattle, Washington, USA

Full-time

Come build the future of Amazon Linux!Amazon Linux is a widely utilized Linux distribution available on AWS's core compute platform EC2 (Elastic Computer Cloud) and other places such as docker, and it is the foundation of what many other AWS's services were built upon. To uphold customer's trust, our team commits to ensuring that the system stays secure and up to date.Our team owns the design and automation process of releasing package updates to the OS. We pride ourselves in the ability to simp
Posted 7 days ago | Updated 4 hours ago

Software Development Engineer II, Amazon Linux

Amazon Development Center U.S., Inc.

•

Seattle, Washington, USA

Full-time

Come build the future of Amazon Linux! Amazon Linux is a widely utilized Linux distribution available on AWS's core compute platform EC2 (Elastic Computer Cloud) and other places such as docker, and it is the foundation of what many other AWS's services were built upon. To uphold customer's trust, our team commits to ensuring that the system stays secure and up to date. Our team owns the design and automation process of releasing package updates to the OS. We pride ourselves in the ability to
Posted 8 days ago | Updated 4 hours ago

Senior Linux IT Systems Engineer / Active Clearance / Orlando, FL

Lockheed Martin Corporation

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Orlando, Florida, USA

Full-time

Job Description This role is for a Classified Linux IT Systems Engineer with a focus on supporting Red Hat-based Linux distributions, Kubernetes and High Performance Computing (HPC) clusters. Linux System administration of heterogeneous networks integrated into Windows Server Active Directory Domains. VMWare vSphere Infrastructure management of ESX clusters spanning multiple distributed networks. Maintain operating system cyber compliance, upgrades, and patching. (Windows/Linux/VMWare) Perform
Posted 60+ days ago | Updated 8 hours ago

Senior HPC Linux Clusters Engineer

Oak Ridge National Laboratory

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Oak Ridge, Tennessee, USA

Full-time

Requisition Id 15037 Overview: The National Center for Computational Sciences (NCCS) at Oak Ridge National Lab (ORNL), which hosts several of the world's most powerful computer systems, is seeking highly qualified individuals to play a key role in improving the security, performance, and reliability of the NCCS computing environments. In this role, you will work within the HPC Clusters Group inside of the NCCS Systems Section to support numerous activities of the center. The HPC Clusters Group
Posted 5 days ago | Updated 3 days ago