administrator Jobs in Maryland

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Linux System Administrator - Laurel

Cornerstone Defense

Laurel, Maryland, USA

Full-time

Location: Laurel, Maryland Type: Contract Job #3778 Title: Linux System Administrator - Laurel Location: Laurel, MD Salary Range: $160,000-$180,000 *Clearance: *Active TS/SCI w/ Polygraph needed to apply * Company Overview: Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience

NAVAIR Systems Administrator, Lead

American Systems Corporation

Maryland, USA

Full-time

Overview AMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in the areas of Information Technology, Test & Evaluation, Program Mission Support, Engineering & Analysis, and Training. Responsibilities System Administrator with demonstrated experience performing System Administration functions on Aircraft or Weapons Systems networks, and maintaining and upgrading network infrastructures across the NAVAIR commu

Application Support Administrator

Marsh & McLennan Companies

Remote or White Plains, New York, USA

Full-time

Company: Marsh McLennan Agency Description: Our not-so-secret sauce. Award-winning, inclusive, Top Workplace culture doesn't happen overnight. It's a result of hard work by extraordinary people. The industry's brightest talent drive our efforts to deliver purposeful work and meaningful impact every day. Learn more about what makes us different and how you can make your mark as an Application Support Administrator at MMA. Marsh McLennan Agency (MMA) provides business insurance, employee healt

Systems Administrator - IT Operations Center

Constellation Energy

Baltimore, Maryland, USA

Full-time

WHO WE ARE As the nation's largest producer of clean, carbon-free energy, Constellation is focused on our purpose: accelerating the transition to a carbon-free future. We have been the leader in clean energy production for more than a decade, and we are cultivating a workplace where our employees can grow, thrive, and contribute. Our culture and employee experience make it clear: We are powered by passion and purpose. Together, we're creating healthier communities and a cleaner planet, and our

Senior Application Support Administrator

Marsh & McLennan Companies

Remote or White Plains, New York, USA

Full-time

Company: Marsh McLennan Agency Description: Our not-so-secret sauce. Award-winning, inclusive, Top Workplace culture doesn't happen overnight. It's a result of hard work by extraordinary people. The industry's brightest talent drive our efforts to deliver purposeful work and meaningful impact every day. Learn more about what makes us different and how you can make your mark as an Senior Application Support Administrator at MMA. Marsh McLennan Agency (MMA) provides business insurance, employe

Senior Systems Administrator

Contact Government Services, LLC

Rockville, Maryland, USA

Full-time

Senior Systems Administrator Employment Type: Full Time, Senior-level Department: Legal/IT CGS is seeking a Senior Systems Administrator to join our team supporting a wide-ranging technical support initiative for a large Federal agency. CGS brings motivated, highly skilled, and creative people together to solve the government's most dynamic problems with cutting-edge technology. To carry out our mission, we are seeking candidates who are excited to contribute to government innovation, apprec

Enterprise Application Administrator

RTX Corporation

Massachusetts, USA

Full-time

Date Posted: 2025-06-17 Country: United States of America Location: RMA99: RTN Remote, Massachusetts Position Role Type: Remote U.S. Citizen, U.S. Person, or Immigration Status Requirements: This job requires a U.S. Person. A U.S. Person is a lawful permanent resident as defined in 8 U.S.C. 1101(a)(20) or who is a protected individual as defined by 8 U.S.C. 1324b(a)(3). U.S. citizens, U.S. nationals, U.S. permanent residents, or individuals granted refugee or asylee status in the U.S. are consi

Systems Administrator / Service Desk

Jacobs

Columbia, Maryland, USA

Full-time

Are you interested in using your skills to help shape the Cyber, Security, & Intel space? If so, look no further. Amentum is seeking a Systems Administrator / Service Desk to join our team of passionate individuals in Columbia, MD. In this role you will support challenging, mission-critical projects that make a direct impact on the Nation's security and intelligence mission. Your Impact: Come be a part of an exciting and ever-changing program that provides a comprehensive range of state-of-the-

Account Systems Administrator - TS/SCI w/Poly

General Dynamics

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: Communication, Data Entry, Group Problem Solving, Microsoft Office Certifications: None Experience: 3 + years of related experience ship Required: No Job Description: Account Systems Administrator Transform technology into opportuni

System Administrator

Torch Technologies Inc.

Maryland, USA

Full-time

Thank you for your interest in Torch Technologies. We're an award-winning, 100% employee-owned company based in Huntsville, Alabama. Recognized as a top 100 defense company, we're dedicated to supporting our nation's military. Our guiding principle, "Lighting the Pathway of Freedom," reflects our commitment to excellence, cooperation, integrity, and reliability. As a Certified Evergreen ESOP, our dedication is to continuously develop and maintain our company's success for the next century, secur

Linux Administrator

American Systems Corporation

Gaithersburg, Maryland, USA

Full-time

Overview AMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in the areas of Information Technology, Test & Evaluation, Program Mission Support, Engineering & Analysis, and Training. Responsibilities As a Linux Administrator with AMERICAN SYSTEMS you will have the opportunity to do the following: Collaborate with onsite system design personnel to implement new system software and hardware.Maintain and develo

System Administrator Level 3

General Dynamics

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: Linux, ServiceNow Platform, Unix Certifications: None Experience: 15 + years of related experience ship Required: Yes Job Description: Provides support for implementation, troubleshooting and maintenance of information Technology (

Systems Administrator 1

Jacobs

Annapolis, Maryland, USA

Full-time

Your Impact: Are you interested in using your skills to help shape the Cyber, Security, & Intel space? If so, look no further. Amentum is seeking a Systems Administrator to join our team of passionate individuals in Annapolis Junction, MD. In this role you will support challenging, mission-critical projects that make a direct impact on the Nation's security and intelligence mission. Responsibilities: Skilled Linux based System Administrator to support DevOps team. This role requires a self-mot

Digital Services Web Server Administrator - TS/SCI w/Poly

General Dynamics

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: Scripting, Web Servers, Web Services Certifications: None Experience: 3 + years of related experience ship Required: Yes Job Description: #ITPolyMD Digital Services Web Server Administrator Transform technology into opportunity as

NAVAIR Systems Administrator

American Systems Corporation

Maryland, USA

Full-time

Overview AMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in the areas of Information Technology, Test & Evaluation, Program Mission Support, Engineering & Analysis, and Training. Responsibilities System Administrator with demonstrated experience performing System Administration functions on Aircraft or Weapons Systems networks, and maintaining and upgrading network infrastructures across the NAVAIR commu

Systems Administrator

BlueHalo

Annapolis, Maryland, USA

Full-time

At BlueHalo, an AV Company, our system administrators are more than just button-pushers-we're the gatekeepers of operational excellence in secure environments. As a System Administrator, you'll be part of a team that manages mission-critical infrastructure for Identity and Access Management (IdAM) systems supporting national security efforts. If you're comfortable with both Linux and Windows environments, enjoy scripting and patching, and take pride in keeping systems locked down and mission-re

Storage Administrator Active TS/SCI / wPoly

General Dynamics

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), Information Technology (IT) Systems, NetApp Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: Storage Administrator Transform technology into opport

Storage Administrator

Johns Hopkins University AppliedPhysicsLaboratory

Laurel, Maryland, USA

Full-time

Description Are you an experienced storage administrator who thrives in secure, high-stakes environments? Do you enjoy supporting mission-focused teams through robust enterprise storage systems? If so, we 're looking for someone like you to join our team at APL. We are seeking a creative IT professional to help us support classified computing facilities that are instrumental to significant Department of Defense and other government organizations. We take great pride in contributing our hardw

Systems Administrator 2

Jacobs

Fort Meade, Maryland, USA

Full-time

Your Impact: Are you interested in using your skills to help shape the Cyber, Security, & Intel space? If so, look no further. Amentum is seeking a Systems Administrator to join our team of passionate individuals in Fort Meade, MD. In this role you will support challenging, mission-critical projects that make a direct impact on the Nation's security and intelligence mission. Responsibilities: A system administrator provides support for implementation, troubleshooting and maintenance of IT syst

Restore System Administrator - TS/SCI w/Poly

General Dynamics

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