Senior IT Systems Administrator Jobs

121 - 140 of 6,147 Jobs

Systems AdministratorJob Title - Systems Administrator

TEKsystems c/o Allegis GroupCompany Name - TEKsystems c/o Allegis Group

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Pineville, Louisiana, USA

Full-time

We are seeking a highly motivated Systems Engineer to join our IT team and serve as an on-site stakeholder in our digital transformation journey. This role will play a key part in our migration to Microsoft E3, Azure IaaS, and Intune, while supporting enterprise-wide infrastructure modernization and device management initiatives. Lead and support the migration of on-premise infrastructure (50+ servers) to Microsoft Azure (IaaS). Oversee the transition from Workspace ONE to Microsoft Intune for d

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

LeidosCompany Name - Leidos

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Clarksburg, West Virginia, USA

Full-time

Description 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 compute

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

Automation Systems Administrator (VMSA-7)Job Title - Automation Systems Administrator (VMSA-7)

General DynamicsCompany Name - General Dynamics

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Sierra Vista, Arizona, 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: Systems Administration Job Qualifications: Skills: Automation, Backup and Recovery (Software), Business Continuity, Information Technology (IT) Systems, Virtualization Certifications: None Experience: 3 + years of related experience ship Required: Yes Job Description: As an Automation Systems Administrator you will help en

Desktop Systems AdministratorJob Title - Desktop Systems Administrator

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

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Tampa, Florida, 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 Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Computer Hardware, Technical Support, TroubleshootingCertifications: NoneExperience: 3 + years of related experienceship Required: Yes Job Description: Transform technology into opportunity as a Desktop Systems Administrator with GDIT. A career in enterprise

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

PACS Systems Administrator | Glen MillsJob Title - PACS Systems Administrator | Glen Mills

ChristianaCareCompany Name - ChristianaCare

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Pennsylvania, USA

Full-time

Are you interested in working for an organization passionate about love and excellence? ChristianaCare is a nonprofit health system with a mission of service. We believe that the key to providing truly excellent health care is to partner with our patients and their families, building a system of care that is effective, affordable and valuable to everyone who is touched by it. ChristianaCare, is looking for a Full-Time PACS Systems Administrator who will utilize our core values of Love & Excell

Systems AdministratorJob Title - Systems Administrator

Robert HalfCompany Name - Robert Half

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Cedar Rapids, Iowa, USA

Full-time

Description We are looking for a skilled Systems Administrator to our Clients team in Cedar Rapids, Iowa. The ideal candidate will have a strong background in managing and maintaining IT infrastructure, ensuring system reliability and efficiency - most importantly experience with M365 and it's cloud functionalities. This role offers an opportunity to collaborate on innovative solutions and optimize organizational technology in many different environments. Please apply now or call . This role i

Junior Systems Administrator/onsiteJob Title - Junior Systems Administrator/onsite

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

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Trenton, New Jersey, USA

Full-time

A rapidly growing company in Central NJ is looking to bring on a Junior Systems Administrator to join their IT operations team. This is a full-time opportunity ideal for candidates looking to develop their infrastructure skills while working with a broad range of technologies including Windows, MacOS, Microsoft 365, and endpoint management tools like Intune. Looking to grow your IT career in a supportive environment? This is the perfect entry point for someone who's eager to learn and get hands-

Systems AdministratorJob Title - Systems Administrator

LeidosCompany Name - Leidos

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Chantilly, Virginia, USA

Full-time

Description The Multi-Domain Solutions (MDS) division at Leidos is seeking a detail-oriented and experienced Systems Administrator to manage the installation, configuration, administration, and maintenance of enterprise systems and associated hardware. The ideal candidate will play a key role in supporting IT infrastructure, ensuring system reliability, performance, and security across physical and virtual environments. Primary Responsibilities: Install, configure, and maintain systems, includi

Systems AdministratorJob Title - Systems Administrator

LeidosCompany Name - Leidos

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Springfield, Virginia, USA

Full-time

Linux Systems Administrator - Oracle Cloud CertifiedJob Title - Linux Systems Administrator - Oracle Cloud Certified

ArnAmy, Inc.Company Name - ArnAmy, Inc.

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Tallahassee, Florida, USA

Contract, Third Party

Job Purpose: Installs, configures, maintains and performs system integration testing of UNIX based operating systems, related utilities and hardware. Responsible for troubleshooting UNIX-based hardware and software problems. Monitors systems activities and fine tunes system parameters and configuration to optimize performance and ensure security of systems. Performs capacity analysis, monitors and controls usage of disk space. Develops procedures for routine administration including backup/resto

Monitoring and Performance Administrator, IT InfrastructureJob Title - Monitoring and Performance Administrator, IT Infrastructure

tax.comCompany Name - tax.com

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Remote or Manila, Metro Manila, Philippines

Full-time

Why Ryan? Flexible Work EnvironmentAward-Winning CultureWorld-Class Benefits and CompensationAccelerated Career PathCommunity OutreachMentorship OpportunitiesWellness-Centric Benefits At Ryan, we pride ourselves on maintaining a robust and efficient IT infrastructure that supports our dynamic business operations. We are seeking a dedicated Monitoring and Performance Administrator to join our team and ensure the optimal performance and reliability of our systems and networks. The Monitoring and

IT Systems Analyst Specialist -- 100% REMOTE- (Only W2)Job Title - IT Systems Analyst Specialist -- 100% REMOTE- (Only W2)

Excellerent Technology SolutionsCompany Name - Excellerent Technology Solutions

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Remote

Contract

No visa sponsorship is available for this position only W2 IT Systems Analyst Specialist This position is Contract to Hire and Open to MEMPHIS, TN and REMOTE** Strong understanding of digital communication technologies. Proficiency in analyzing complex technical problems, designing solutions, and translating technical concepts to non-technical stakeholders. Awareness in programming languages, including chatbot frameworks and NLP libraries. Experience with data analysis and visualization tools

Sr. Systems Administrator/Task Lead/ManagerJob Title - Sr. Systems Administrator/Task Lead/Manager

General DynamicsCompany Name - General Dynamics

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Florida, 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 Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Information Technology (IT) Systems, Mentorship, People Management Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: GDIT has an immediate opening for a Senior Systems Administrator/Task Lead/Manager to fi

Systems Administrator (IT Program Services)Job Title - Systems Administrator (IT Program Services)

NightwingCompany Name - Nightwing

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Annapolis, Maryland, USA

Full-time

Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers' most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies, agility, and competitive offerings to customers in th

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

Systems Administrator - MaximoJob Title - Systems Administrator - Maximo

Robert HalfCompany Name - Robert Half

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Detroit, Michigan, USA

Full-time

Description We are looking for an experienced Systems Administrator to manage and optimize our Maximo Enterprise Asset Management platform. This role is essential in ensuring the system operates efficiently, supports organizational goals, and evolves to meet changing business needs. You will collaborate with various teams to implement solutions, maintain system integrity, and drive continuous improvements. Responsibilities: Coordinate with external vendors to plan, test, and apply system patche

Systems AdministratorJob Title - Systems Administrator

Rose InternationalCompany Name - Rose International

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Las Vegas, Nevada, USA

Full-time

Date Posted: 07/22/2025 Hiring Organization: Rose International Position Number: 485899 Industry: Government/Staffing Job Title: Systems Administrator Job Location: Las Vegas, NV, USA, 89102 Work Model: Onsite Shift: Normal Business hours Employment Type: Temp to Hire FT/PT: Full-Time Estimated Duration (In months): 13 Min Hourly Rate($): 37.00 Max Hourly Rate($): 39.00 Must Have Skills/Attributes: CMS, Problem Management, Procurement, SQL Server Experience Desired: Familiarity with CMS

Systems Engineer - Information Technology SeniorJob Title - Systems Engineer - Information Technology Senior

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Orlando, Florida, USA

Full-time

Job Description WHAT WE'RE DOING Rotary and Mission Systems' Training, Logistics and Simulation (TLS) business is Lockheed Martin's center of excellence for training and logistics products and services, serving the U.S. military and more than 65 international customers around the world. Based in Orlando, TLS develops programs that teach service men and women skills to accomplish their most challenging missions - flying the world's most advanced fighter aircraft, navigating ships and driving ar