system administrator AND security Jobs

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Senior Linux System Administrator

Zachary Piper Solutions, LLC

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San Diego, California, USA

Full-time

Piper Companies is looking for a Senior Linux System Administrator to join DoD consulting company. This position is onsite in San Diego, CA. Essential Duties of the Sr 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 assist
Posted 31 days ago | Updated 20 days ago

Linux System Administrator

Booz Allen Hamilton

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Aberdeen Proving Ground, Maryland, USA

Full-time

Job Number: R0221928 Linux System Administrator The Opportunity: Your combination of people skills and system administrator knowledge 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. Government? We're looking for a system administrator who specializes in Linux with skills in Linux FIPS mod, full disk encryption using LUKS, TANG, Clevis, VMWare, and Active Directory. As a Linux system administrator on our
Posted 5 hours ago

System Administrator

Leidos

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Omaha, Nebraska, USA

Full-time

System Administrator (Offutt AFB) - Leidos Do mission-critical infrastructure and cutting-edge cloud migrations get your pulse racing? At Leidos, you'll be the linchpin of Air Force ISR operations-building rock-solid Windows/Linux environments, safeguarding top-secret data, and architecting the next wave of AWS/Azure solutions. What You'll Own End-to-End Server Maestro Lead the install, configuration, tuning, and 24/7 support of Windows & Linux servers, storage arrays, and databases-ensuring p
Posted 9 days ago | Updated 4 hours ago

System Administrator

Electronic Consulting Services, Inc (ECS Federal)

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Quantico, Virginia, USA

Full-time

Job Description ECS is seeking a System Administrator to work in our Quantico, VA office. Please Note: This position is contingent upon additional funding. Are you ready to play crucial role in supporting cutting-edge technology for federal law enforcement and scientific organizations? ECS is seeking a highly skilled and motivated System Administrator to provide IT services and support for hardware, IT systems, applications, and operational technologies that support mission critical operatio
Posted 4 days ago | Updated 1 hour ago

Jr. System Administrator

Leidos

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Shiloh, Illinois, USA

Full-time

The Defense group at Leidos has a career opening for a Jr. System Administrator on a DISA contract. This role is primarily on the customer site at Ft Meade, MD. Administrator will provide support for assigned systems supporting Joint Worldwide Intelligence Communications System (JWICS). PRIMARY RESPONSIBILITIES: The candidate must be able to work independently to maintain the smooth operation of a multi-user computer systems, including coordination with customer and other administrators.Communi
Posted 15 days ago | Updated 4 hours ago

Jr. System Administrator

Leidos

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Odenton, Maryland, USA

Full-time

The Defense group at Leidos has a career opening for a Jr. System Administrator on a DISA contract. This role is primarily on the customer site at Ft Meade, MD. Administrator will provide support for assigned systems supporting Joint Worldwide Intelligence Communications System (JWICS). PRIMARY RESPONSIBILITIES: The candidate must be able to work independently to maintain the smooth operation of a multi-user computer systems, including coordination with customer and other administrators.Communi
Posted 15 days ago | Updated 4 hours ago

Azure Cloud System Administrator

BlueHalo

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Maryland, USA

Full-time

At BlueHalo an AV company, we don't just witness the future of national security - we create it. We're on the search for a Azure Cloud System Administrator to embark on challenging, mission-critical projects near any one of our nationwide facilities, directly impacting the nation's security and intelligence mission. In our team of problem solvers, innovators, technologists, and operators, you'll be at the forefront of driving meaningful change and making an enduring impact. The Azure Cloud Syst
Posted 19 days ago | Updated 4 hours ago

Jr. System Administrator

Leidos

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O'Fallon, Illinois, USA

Full-time

JOB SUMMARY: Leidos is seeking a candidate to fill a Junior System Administration position supporting DISA's GSM-O contract at Scott AFB, IL. The System Administrator is responsible for protecting DISA's information and information systems from unauthorized access, use, disclosure, disruption, modification, perusal, inspection, recording and destruction. PRIMARY RESPONSIBILITIES: The candidate must be able to work independently to maintain the smooth operation of a multi-user computer systems,
Posted 15 days ago | Updated 4 hours ago

Senior Discovery IT System Administrator (Top Secret Clearance Required)

Contact Government Services, LLC

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San Francisco, California, USA

Full-time

Senior Discovery IT System Administrator Employment Type: Full-Time, Executive-Level Department: Legal CGS is seeking a dedicated Senior Discovery IT System Administrator to join a fast-paced and hard-working team to assist with any legal accounts. As a Senior Discovery IT System Administrator, you will play a key role in supporting various aspects of the company's portfolio. CGS brings motivated, highly skilled, and creative people together to solve the government's most dynamic problems with
Posted 2 days ago | Updated 5 hours ago

Windows Linux System Administrator

Rose International

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Dallas, Texas, USA

Full-time

Date Posted: 06/30/2025 Hiring Organization: Rose International Position Number: 484801 Industry: Professional Services Job Title: Windows Linux System Administrator Job Location: Dallas, TX, USA, 75201 Work Model: Onsite Shift: 9 AM - 6 PM Employment Type: Temporary FT/PT: Full-Time Estimated Duration (In months): 7 Min Hourly Rate($): 50.00 Max Hourly Rate($): 50.00 Must Have Skills/Attributes: AWS, Azure, CI/CD tools, GitHub Experience Desired: Windows/Linux system admin, Azure/AWS (
Easy Apply
Posted 6 days ago | Updated 1 hour ago

System Administrator (SA1) (Government)

AT&T Inc.

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Columbia, Maryland, USA

Full-time

Job Description: AT&T Global Public Sector is a trusted provider of secure, IP enabled, cloud-based, network solutions and professional services to the Federal Government. We are dedicated to recruiting, developing and empowering a diverse, high-performing workforce that is passionate about what they do, committed to our shared values and dedicated to our customers' mission. MAROONMIDNIGHTS (MMN) Provide IT support and solutions developed for National Cryptologic University classified training
Posted 13 days ago | Updated 4 hours ago

Restore System Administrator - TS/SCI w/Poly

General Dynamics

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Annapolis, Maryland, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Backup and Recovery (Software), Disaster Recovery (DR), Information Technology (IT) Systems Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: Restore System Administrator Transform
Posted 8 days ago | Updated 4 hours ago

Upgraded Early Warning Radar (UEWR) Site Analyst/System Administrator

InDyne

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Pituffik, Avannaata, Greenland

Full-time

InDyne is a full-service military, civilian and commercial operations company. Our Mission is to provide tailored cost effective, quality services and solutions. Our Vision is to exceed customer expectations by delivering results through agility, flexibility and responsiveness. Our Core Values include integrity, trust and loyalty. Note: The duties specified in this position description are not intended to be all-inclusive. Other reasonable and job-related duties may be assigned at the superviso
Posted 6 days ago | Updated 1 hour ago

Sr. Principal Linux System Administrator

Raytheon

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Aurora, Colorado, USA

Full-time

Date Posted: 2025-07-01 Country: United States of America Location: CO108: 16201 East Centretech Parkway 16201 East Centretech Parkway Building S78, Aurora, CO, 80011 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: TS/SCI with Polygraph Sr. Principal Linux System Administrator - Aurora, CO, must have an active TS/SCI CI Poly
Posted 4 days ago | Updated 14 hours ago

System Administrator, Senior

Parsons Services Company

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Annapolis, Maryland, USA

Full-time

In a world of possibilities, pursue one with endless opportunities. Imagine Next! When it comes to what you want in your career, if you can imagine it, you can do it at Parsons. Imagine a career working with exceptional people sharing a common quest. Imagine a workplace where you can be yourself. Where you can thrive. Where you can find your next, right now. We've got what you're looking for. Job Description: Parsons is the premier national security and critical infrastructure solutions provi
Posted 16 days ago | Updated 4 hours ago

System Administrator

KTek Resourcing

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Englewood Cliffs, New Jersey, USA

Full-time

Job DescriptionO 365 Exchange Admin/Support Engineer Location: Englewood Cliffs, NJ (Onsite) Contract : 6-12+ months Client: HCL America **Update LinkedIn ID Required Requirements: Min 8-10 Years of experience in O 365 Exchange AdminProvide L3-level support for Exchange Online and hybrid Exchange environments.Proofpoint experience is mustShould have good experience in PowerShell and should be able to develop scripts for bulk operations.Troubleshoot and resolve complex issues related to mail flow
Posted 2 days ago | Updated 14 hours ago

System Administrator

Leidos

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Orlando, Florida, USA

Full-time

Are you an experienced 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 a difference
Posted 7 days ago | Updated 4 hours ago

System Administrator 1

Realm One

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Annapolis, Maryland, USA

Full-time

RealmOne is the GOAT - where your career can reach the greatest heights! RealmOne was built on the principle that people matter first and foremost. We believe in providing a strong work/life balance by investing in our employees and encouraging professional and personal growth. We do this by offering exceptional benefits, flexible schedules, and the tools necessary to achieve success through paid training, mentoring, and the opportunity to work alongside top-notch security professionals. Join u
Posted 17 days ago | Updated 4 hours ago

Linux/Windows System Administrator

Lockheed Martin Corporation

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Moorestown, New Jersey, USA

Full-time

Job Description WHAT WE'RE DOING The AEGIS O&M program is seeking a Linux/Windows System Administrator in Moorestown NJ. This facility houses both Navy and Lockheed Martin personnel. It primarily serves as a research and development facility for the AEGIS Combat System. AEGIS is a revolutionary naval air defense system capable of guarding against missile threats from land, sea and air. WHO WE ARE Our current team handles everything from: Periodically travelling to different customer sites ar
Posted 4 days ago | Updated 4 hours ago

Senior Windows System Administrator

Raytheon

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El Segundo, California, USA

Full-time

Date Posted: 2025-06-18 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: The ability to obtain and maintain a U.S. government issued security clearance is required.Security Clearance: DoD Clearance: Secret At Raytheon, the foundation of everything we do is rooted in our values and a higher callin
Posted 4 days ago | Updated 14 hours ago