senior linux system administrator Jobs

141 - 160 of 2,200 Jobs

System Administrator 1Job Title - System Administrator 1

JacobsCompany Name - Jacobs

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Annapolis, Maryland, USA

Full-time

Are you interested in using your skills to help shape the Cyber, Security, & Intel space? If so, look no further. We are seeking a Database Administrator to join our team of passionate individuals. 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 systems. Manages IT system infrastructu

System Administrator Level 3Job Title - System Administrator Level 3

General DynamicsCompany Name - 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: 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 (I

System Administrator (SA2) (Government)Job Title - System Administrator (SA2) (Government)

AT&T Inc.Company Name - 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) is focused is on Directory Infrastructure Services (Active Directory (AD), Exchange, Identity Mana

System Administrator (SA2) (Government)Job Title - System Administrator (SA2) (Government)

AT&T Inc.Company Name - AT&T Inc.

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San Antonio, Texas, USA

Full-time

Unified Communications Tier 2 / System AdministratorJob Title - Unified Communications Tier 2 / System Administrator

General DynamicsCompany Name - General Dynamics

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Hayward, California, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Secret Clearance Level Must Be Able to Obtain: Secret Public Trust/Other Required: None Job Family: Network Administration Job Qualifications: Skills: Network Security, System Administration, Unified Communications Certifications: None Experience: 3 + years of related experience ship Required: Yes Job Description: Overview - Unified Communications Work as a team to resolve UC Tier 2 Help Desk issues. The individual rev

System Administrator IJob Title - System Administrator I

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

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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, Information Technology (IT), Network Components, Operating Systems (OS), Troubleshooting Certifications: None Experience: 4 + years of related experience ship Required: Yes Job Description: Provides support for imple

Mainframe System Administrator ApprenticeJob Title - Mainframe System Administrator Apprentice

IBMCompany Name - IBM

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West Virginia, USA

Full-time

Introduction At IBM, work is more than a job - it's a calling: To build. To design. To code. To consult. To think along with clients and sell. To make markets. To invent. To collaborate. Not just to do something better, but to attempt things you've never thought possible. Are you ready to lead in this new era of technology and solve some of the world's most challenging problems? If so, lets talk In this role, you'll work in one of our IBM Consulting Client Innovation Centers (Delivery Centers),

System Administrator IIJob Title - System Administrator II

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

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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, Information Systems, Operating Systems (OS), System Security, Systems Software Certifications: None Experience: 4 + years of related experience ship Required: Yes Job Description: #ITPolyMD Provide support for imple

HPC System AdministratorJob Title - HPC System Administrator

JacobsCompany Name - Jacobs

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Houston, Texas, USA

Full-time

Are you passionate about human space exploration, understanding the origins of the universe, and working with a passionate and diverse team to make a difference? If you are, we need you! We need your talent, teamwork, and energy to help us achieve great things that inspire people all over the globe. We need you to bring creative ideas and diverse backgrounds to help us envision, shape, and deliver systems that will enable the exploration of space while benefiting people here on Earth. We are exc

System Administrator (SA3) (Government)Job Title - System Administrator (SA3) (Government)

AT&T Inc.Company Name - AT&T Inc.

•

Columbia, Maryland, USA

Full-time

System Administrator (SA3) (Government)Job Title - System Administrator (SA3) (Government)

AT&T Inc.Company Name - AT&T Inc.

•

San Antonio, Texas, USA

Full-time

System AdministratorJob Title - System Administrator

Motion Recruitment Partners, LLCCompany Name - Motion Recruitment Partners, LLC

•

Bedford Park, Illinois, USA

Full-time

Exciting job opportunity within the automotive aftermarket industry, for an experienced IT Systems Administrator for their Bedford Park area location. This full-time role offers the opportunity to design and implement hybrid Active Directory infrastructure while managing cutting-edge technologies including Palo Alto firewalls, Meraki access points, Office 365, and enterprise ERP/WMS systems for a company that's reshaping an entire industry. Join a company experiencing remarkable expansion where

System AdministratorJob Title - System Administrator

Apex SystemsCompany Name - Apex Systems

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Herndon, Virginia, USA

Full-time

Job#: 2073271 Job Description: Apex Systems has an opening available for a Sr. System Administrator with one of our clients that is a large technology solutions provider in the DMV area! This role serves as a "hands-on" server administrator who evaluates complex system requirements and then designs, implements and maintains the most efficient solutions. This role will develop and document technical standards, identify and evaluate new products, interface with vendors to purchase new hardware and

High Performance Computing (HPC) System Administrator, Principal Specialist, Onsite Tucson, AZJob Title - High Performance Computing (HPC) System Administrator, Principal Specialist, Onsite Tucson, AZ

RTX CorporationCompany Name - RTX Corporation

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Tucson, Arizona, USA

Full-time

Date Posted: 2025-05-29 Country: United States of America Location: AZ855: RMS AP Bldg M05 1151 East Hermans Road Building M05, Tucson, AZ, 85756 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: Secret System Administrator, High Performance Computing (HPC)- P3 Principal Specialist level Raytheon Digital Technology (

Application Performance Monitoring System AdministratorJob Title - Application Performance Monitoring System Administrator

Medline Industries, LPCompany Name - Medline Industries, LP

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Remote

Full-time

Job Summary Job Description Job Summary The Application Performance Monitoring System Administrator will manage, maintain and support an enterprise level Appdynamics SaaS monitoring tool installation. You will act as an Appdynamics and APM (application performance monitoring) Subject Matter Expert, configure and maintain Appdynamics, analyze performance data, and provide insights to improve monitoring of Medline applications. As part of the Service Management Office, your primary goal is ava

System Administrator IJob Title - System Administrator I

General DynamicsCompany Name - 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, Information Technology (IT), Network Components, Operating Systems (OS), Troubleshooting Certifications: None Experience: 4 + years of related experience ship Required: Yes Job Description: Provides support for implem

System Operations/Administrator (Multiple Levels)Job Title - System Operations/Administrator (Multiple Levels)

NoblisCompany Name - Noblis

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Chantilly, Virginia, USA

Full-time

Responsibilities Noblis ESI is seeking a System Operations/Administrator with a background in managing and maintaining desktop computing environments to work with our clients in supporting our customer Mission Integration Directorate (MID). Job Responsibilities Install, configure, and maintain desktop systems, laptops, and peripheral devices. Provide technical support and troubleshooting assistance to end-users for hardware, software, and network-related issues. Monitor system performance and

System Administrator IIJob Title - System Administrator II

General DynamicsCompany Name - 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, Information Systems, Operating Systems (OS), System Security, Systems Software Certifications: None Experience: 4 + years of related experience ship Required: Yes Job Description: #ITPolyMD Provide support for implemen

System AdministratorJob Title - System Administrator

City of New YorkCompany Name - City of New York

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New York, New York, USA

Full-time

Company Description Job Description The Office of the District Attorney, Bronx County ("BXDA") is charged with the twin goals of ensuring public safety and striving for equal justice for the over 1.4 million members of the Bronx County community. By "Pursuing Justice with Integrity," the BXDA places a focus on assistance for crime victims while simultaneously ensuring fairness to defendants. Moreover, the BXDA aims to balance the need to seek appropriate punishment for certain crimes while rec

System AdministratorJob Title - System Administrator

JacobsCompany Name - Jacobs

•

Severn, Maryland, USA

Full-time

Amentum is hiring a professional IT Systems Administrator that will successfully support and maintain a stable IT infrastructure for multiple SCIF and commercial environments. Providing support on telecommunications circuits, networking equipment, servers, AD enterprise, applications, and desktop support. Ensuring secure and stable operation of systems, seamless flow of information and proper functioning of endpoints throughout the organizations operations. Working as part of a team triaging of