senior systems administrator Jobs

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Senior Infrastructure Systems AdministratorJob Title - Senior Infrastructure Systems Administrator

Genius Road, LLCCompany Name - Genius Road, LLC

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Dallas, Texas, USA

Contract

Senior Infrastructure Systems Administrator Contract Length: 12 months + potential extension Location: Dallas, Texas Hybrid (3 days onsite downtown Dallas and related sites within DFW) **Applicants must already be local to the Dallas area** We re looking for a seasoned Senior Infrastructure Systems Administrator to join our client s dynamic Control Systems team. This hybrid role supports critical infrastructure that enables 24/7 utility operations. The ideal candidate should have at least 8+ y

Sr Windows Systems AdministratorJob Title - Sr Windows Systems Administrator

RaytheonCompany Name - Raytheon

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McKinney, Texas, USA

Full-time

Date Posted: 2025-07-02 Country: United States of America Location: TX190: 2501 West University, McKinney 2501 West University , McKinney, TX, 75070 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 At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - to help our n

Sr Linux Systems AdministratorJob Title - Sr Linux Systems Administrator

RaytheonCompany Name - Raytheon

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McKinney, Texas, USA

Full-time

Time Systems Sr. AdministratorJob Title - Time Systems Sr. Administrator

National GridCompany Name - National Grid

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Syracuse, New York, USA

Full-time

About us We are dedicated to providing safe and secure energy to homes, communities, and businesses. Our commitment is to support people in their time of need, connecting them to essential energy for daily life. As societal and industry changes accelerate, our expertise uniquely positions us to shape a sustainable energy future. To succeed, we proactively anticipate customer needs, aiming to lower energy delivery costs while developing flexible energy systems for tomorrow. This commitment driv

Senior Linux Systems AdministratorJob Title - Senior Linux Systems Administrator

Cornerstone DefenseCompany Name - Cornerstone Defense

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No location provided

Full-time

Type: Contract Job #3699 Senior Linux Systems Administrator Aurora, CO Active TS/SCI with Poly Compensation Range: $125,000 - $145,000 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 they have supporting the mission. Our Team is pushed every day to use thei

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 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 Security AdministratorJob Title - Senior Systems Security Administrator

Johns Hopkins University AppliedPhysicsLaboratoryCompany Name - Johns Hopkins University AppliedPhysicsLaboratory

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Laurel, Maryland, USA

Full-time

Description Are you interested in creating new IT security capabilities and learning new cybersecurity technologies? Do you want to have a stake in the overall security posture and assessment of the IT infrastructure? If so, we're looking for someone like you to apply and join our team at APL! We are seeking a Senior Systems Security Administrator (SSA) to be part of APL 's Classified IT Services team. We provide technical expertise to meet compliance and security objectives in environments co

Senior Linux Systems AdministratorJob Title - Senior Linux Systems Administrator

LeidosCompany Name - Leidos

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Columbia, Maryland, USA

Full-time

Senior Linux Systems AdministratorJob Title - Senior Linux Systems Administrator

LeidosCompany Name - Leidos

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Annapolis, Maryland, USA

Full-time

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 Systems Analyst and AdministratorJob Title - Senior Systems Analyst and Administrator

Apex SystemsCompany Name - Apex Systems

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Quincy, Massachusetts, USA

Full-time

Job#: 2073361 Job Description: Apex Systems is a world class technology services business that incorporates industry or insights and experience to deliver solutions that fulfill our clients' digital visions. Apex has an opportunity for a Senior Systems Analyst and Administrator. For applicants who are interested in this opportunity, send your updated resume to Mike Konjoian, Account Manager, at . Here are the details: Position: Senior Systems Analyst and Administrator Location: 25 Newport Ave

Senior ServiceNow Systems AdministratorJob Title - Senior ServiceNow Systems Administrator

SAICCompany Name - SAIC

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Maryland, USA

Full-time

Job ID: 2504648 Location: ANNAPOLIS JUNCTION, MD, US Date Posted: 2025-04-15 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: TS/SCI with Poly Clearance Level Must Be Able to Obtain: TS/SCI with Poly Potential for Remote Work: No Description SAIC has an immediate opening for a ServiceNow Administrator in Annapolis Junction, on a very exciting program! In this role you will do many different things

SAP NS2 Senior Cloud Engineer/Systems Administrator - Onsite - Chantilly, VAJob Title - SAP NS2 Senior Cloud Engineer/Systems Administrator - Onsite - Chantilly, VA

SAP Americas, Inc.Company Name - SAP Americas, Inc.

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Herndon, Virginia, USA

Full-time

We help the world run better At SAP, we enable you to bring out your best. Our company culture is focused on collaboration and a shared passion to help the world run better. How? We focus every day on building the foundation for tomorrow and creating a workplace that embraces differences, values flexibility, and is aligned to our purpose-driven and future-focused work. We offer a highly collaborative, caring team environment with a strong focus on learning and development, recognition for your i

Sr Application Systems Administrator - GRCJob Title - Sr Application Systems Administrator - GRC

Medline Industries, LPCompany Name - Medline Industries, LP

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Northbrook, Illinois, USA

Full-time

Job Summary Job Description Medline is seeking a highly skilled Sr. Application System Administrator specializing in Governance, Risk, and Compliance (GRC) and Legal systems. The ideal candidate will demonstrate expertise in managing technical administration, optimizing and automating compliance and controls processes, and supporting seamless operations of system processes. This role requires strong analytical, technical, and interpersonal skills to support Medline's governance and compliance

Senior Systems Sustainment Administrator - EveningJob Title - Senior Systems Sustainment Administrator - Evening

SAICCompany Name - SAIC

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Suffolk, Virginia, USA

Full-time

Job ID: 2502771 Location: SUFFOLK, VA, US Date Posted: 2025-07-07 Category: Information Technology Subcategory: IT Systems Engineer Schedule: Full-time Shift: Evening Job Travel: Yes, 25 % of the Time Minimum Clearance Required: Secret Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC is looking for a Senior Systems Engineer to serve as a Senior Systems Administrator with experience in US Navy IT networks to support the sustained operation and

Senior Network/Systems AdministratorJob Title - Senior Network/Systems Administrator

GovCIOCompany Name - GovCIO

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Remote

Full-time

Overview GovCIO is currently hiring for a Senior Network/Systems Administrator with an active Secret clearance. This position will be located in Sterling, VA and will be a fully remote position. Responsibilities Establishes and maintains smooth operation of computer systems (to include operating systems, software and hardware) in networked or stand-alone configurations, maintains system integrity, and upgrades systems and/or servers as required. May create and document new methods supporting

Senior AWS Cloud Systems Operations AdministratorJob Title - Senior AWS Cloud Systems Operations Administrator

Maximus, Inc.Company Name - Maximus, Inc.

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San Antonio, Texas, USA

Full-time

Description & Requirements Maximus is seeking a Senior AWS Cloud Systems Operations Administrator focused on managing AWS workloads, overseeing system deployment, security, and compliance. This administrator will use AWS tools to ensure systems run efficiently, troubleshooting as needed. Their expertise is vital for maintaining DoD system integrity and performance on the cloud. Maximus TCS (Technology and Consulting Services) Internal Job Profile Code: TCS221, T5, Band 8 Job-Specific Essential

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