senior it systems administrator Jobs

81 - 100 of 6,110 Jobs

Manager, IT/Senior Systems AnalystJob Title - Manager, IT/Senior Systems Analyst

Thermo Fisher ScientificCompany Name - Thermo Fisher Scientific

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Massachusetts, USA

Full-time

Work Schedule Standard (Mon-Fri) Environmental Conditions Office Job Description COMPANY: Thermo Fisher Scientific Inc. LOCATION: 168 Third Avenue, Waltham, MA 02451 TITLE: Manager, IT/Senior Systems Analyst HOURS: Monday to Friday, 8:00 am to 5:00 pm DUTIES: Support Thermo Fisher's integration of Tracelink (Track and Trace Solution) and Thermo Fisher's downstream partners to ensure Thermo Fisher is compliant with Serialization and Track and Trace requirements and detailing the technical

Senior Red Hat Systems AdministratorJob Title - Senior Red Hat Systems Administrator

Harris CorporationCompany Name - Harris Corporation

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Anaheim, California, USA

Full-time

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris Technologie

Senior Windows Systems Administrator VMWare SMEJob Title - Senior Windows Systems Administrator VMWare SME

SAICCompany Name - SAIC

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Chantilly, Virginia, USA

Full-time

Job ID: 2506329 Location: CHANTILLY, VA, US Date Posted: 2025-06-03 Category: Information Technology Subcategory: IT Systems Engineer Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: TS/SCI with Poly Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC is looking for an ambitious Senior Level System Administrator/VMWare SME like you! Candidates will join a fast-paced and growing team of System Administrators in supporting

Senior Systems AdministratorJob Title - Senior Systems Administrator

Golden Resources. Inc.Company Name - Golden Resources. Inc.

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Dallas, Texas, USA

Full-time, Contract, Third Party

Our client is looking for a Senior Systems Administrator who can take initiative and solve problems effectively. This role will oversee and enhance IT infrastructure. This role involves leading technology projects, implementing automation solutions, and supporting the ongoing expansion of our systems. The ideal candidate will help maintain and improve the tools and platforms used by a large user base in a blended cloud and on-premises setup. Top skills you need to have: Experience leading Micro

Linux Systems Administrator, Senior - Top Secret Clearance RequiredJob Title - Linux Systems Administrator, Senior - Top Secret Clearance Required

American Systems CorporationCompany Name - American Systems Corporation

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Crane, Indiana, 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 This job requisition is for potential upcoming work at AMERICAN SYSTEMS and does not represent a current opening. Qualified candidates will be contacted when the work becomes available. As a Senior Linux Syst

Sr Systems AdministratorJob Title - Sr Systems Administrator

Irvine Technology Corporation (ITC)Company Name - Irvine Technology Corporation (ITC)

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Dallas, Texas, USA

Full-time

Sr. Systems Administrator We have an immediate need for a Sr. Systems Administrator to join our client for a full-time, direct hire position that is fully onsite in Dallas, NYC, Phoenix or Austin. This position will support a 90% virtualized environment within Azure and AWS. Location: Onsite in Dallas, NYC, Phoenix or Austin This job expects to pay about $110,000-130,000 benefits What You ll Do: Participate in on-call rotation, after-hours maintenance, and incident response to ensure system ava

Senior Linux Systems Administrator - 10k Sign on BonusJob Title - Senior Linux Systems Administrator - 10k Sign on Bonus

LeidosCompany Name - Leidos

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Annapolis, Maryland, USA

Full-time

Leidos has a new and exciting opportunity for a Senior Linux Systems Administrator in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immed

Senior Systems Administrator (Linux/Windows)Job Title - Senior Systems Administrator (Linux/Windows)

GovCIOCompany Name - GovCIO

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Remote

Full-time

Overview GovCIO is hiring for a Senior Systems Administrator (Linux and Windows) to 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 in Washington, DC and will be a hybrid remote with periodic onsite customer work activities. Must be willing to work nights, have an active Sec

IT Analyst / Systems AdministratorJob Title - IT Analyst / Systems Administrator

Modern Technology SolutionsCompany Name - Modern Technology Solutions

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Fort Belvoir, Virginia, USA

Full-time

Overview Own Your Future. Modern Technology Solutions, Inc. (MTSI) is seeking a IT Analyst/Systems Administrator in Ft. Belvoir, Va. Why is MTSI known as a Great Place to Work? Interesting Work: Our co-workers support some of the most important and critical programs to our national defense and security. Values: Our first core value is that employees come first. We challenge our co-workers to provide the highest level of support and service, and reward them with some of the best benefits in the

Senior IT Manufacturing Systems AnalystJob Title - Senior IT Manufacturing Systems Analyst

CorningCompany Name - Corning

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Kennebunk, Maine, USA

Full-time

The company built on breakthroughs. Join us. Corning is one of the world s leading innovators in glass, ceramic, and materials science. From the depths of the ocean to the farthest reaches of space, our technologies push the boundaries of what s possible. How do we do this? With our people. They break through limitations and expectations not once in a career, but every day. They help move our company,and the world, forward. At Corning, there are endless possibilities for making an impact. You

IT Systems Administrator Emergency Essential Shift workJob Title - IT Systems Administrator Emergency Essential Shift work

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Maryland, USA

Full-time

Job Description What We're Doing: Lockheed Martin, Cyber & Intelligence invites you to step up to one of today's most daunting challenges: the use of advanced electronics to undermine our way of life. As a cyber security professional at Lockheed Martin, you'll protect the networks that our citizens and the world depend upon each minute: Financial assets. Healthcare information. Critical infrastructure. Hazardous materials. The uninterrupted flow of energy that keeps modern life moving. Here, yo

Linux Systems Administrator, Sr / Secret / Onsite: Sunnyvale, CAJob Title - Linux Systems Administrator, Sr / Secret / Onsite: Sunnyvale, CA

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Sunnyvale, California, USA

Full-time

Job Description Join our Lockheed Martin team! Our employees are the core of everything we do, and they are helping the future arrive. As a leading technology innovation company, our team of over 100,000 people works with partners around the world to bring proven performance to our customers' toughest challenges. Headquartered in Bethesda, MD, Lockheed martin has employees based in all 50 states and more than 570 facilities that span more than 70 countries. We are hiring a Linux System Adminis

Systems Administrator SeniorJob Title - Systems Administrator Senior

Northwestern UniversityCompany Name - Northwestern University

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Evanston, Illinois, USA

Full-time

Department: MCC Information Technology Salary/Grade: ITS/81 Job Summary: Completes efforts and projects related to the design, installation, operation, support, upgrades and maintenance of infrastructure, including software, servers, networking and storage. Administers, maintains and supports complex and critical infrastructure. Provides user support for server hosting requests, problem resolution, system changes and upgrades. Analyzes infrastructure performance and resolves problems or makes ap

Senior IT System Administrator/System AnalystJob Title - Senior IT System Administrator/System Analyst

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

Linux Systems Administrator - SeniorJob Title - Linux Systems Administrator - Senior

LeidosCompany Name - Leidos

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Clarksburg, West Virginia, USA

Full-time

As the largest provider of IT services, Leidos develops and sustains large data and technology infrastructures and integrates complex law enforcement IT system for a number of US federal agencies. At Leidos we offer engaging careers, a collaborative culture, and support for your career goals and growth. This role would be serving a federal law enforcement agency in Clarksburg, WV. Primary Responsibilities: Responsible for the upkeep, configuration, and reliable operation of computer systems. Sy

Senior Classified Systems AdministratorJob Title - Senior Classified Systems Administrator

DraperCompany Name - Draper

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Cambridge, Massachusetts, USA

Full-time

Overview: Draper is an independent, nonprofit research and development company headquartered in Cambridge, MA. The 2,000+ employees of Draper tackle important national challenges with a promise of delivering successful and usable solutions. From military defense and space exploration to biomedical engineering, lives often depend on the solutions we provide. Our multidisciplinary teams of engineers and scientists work in a collaborative environment that inspires the cross-fertilization of ideas

Senior Linux Systems AdministratorJob Title - Senior Linux Systems Administrator

LeidosCompany Name - Leidos

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Columbia, Maryland, USA

Full-time

Sr. Systems AdministratorJob Title - Sr. Systems Administrator

Arena Technical ResourcesCompany Name - Arena Technical Resources

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Redstone Arsenal, Alabama, USA

Full-time

Job DescriptionJob Title: Sr Systems Administrator Job Location: Redstone Arsenal, Alabama Eligibility/Clearance: Secret Clearance is required. This position supports a government contract Job Description: We are seeking a Systems Administrator that will work within a cohesive team environment and is responsible for the effective provisioning, installation/configuration, operation, and maintenance of systems hardware and software and related infrastructure. This role is critical for ensuring

Senior Systems AdministratorJob Title - Senior Systems Administrator

IO AssociatesCompany Name - IO Associates

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South Pasadena, Florida, USA

Full-time

Senior Systems Administrator - MacDill AFB (Tampa, FL) Join a fast-growing consulting firm delivering mission-critical IT infrastructure for the Department of Defense. Our client is seeking a Senior Systems Administrator to support operations at MacDill AFB. Requirements: Active Top Secret clearance (TS/SCI eligible) DoD 8570 certification (Security+ or equivalent) 4+ years of systems administration experience Proficient with Windows Server, Linux, virtualization, and cloud platforms (AWS,

Sr. Systems AdministratorJob Title - Sr. Systems Administrator

RTX CorporationCompany Name - RTX Corporation

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Tucson, Arizona, USA

Full-time

Date Posted: 2025-06-19 Country: United States of America Location: AZ888: RMS AP Bldg 928 1151 East Hermans Road Building 928, Tucson, AZ, 85706 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 higher calling - to help our nation