senior systems administrator jobs in remote

Senior Systems Administrator (Windows/Linux - Migrations)

Austin, Texas

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Today

job summary: We are seeking a Senior Support Technician to support a large-scale infrastructure modernization effort focused on upgrading and migrating legacy Windows Server and RHEL systems. This role will play a key part in improving system performance, security, and stability across enterprise environments. The ideal candidate has strong experience in system administration, OS migrations, and automation, with the ability to work across both Windows and Linux environments. This is a hands-on

Contract

USD42 - USD47

Senior Systems Administrator

Springfield, Virginia

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Today

Job ID: 2610005 Location: Springfield, VA, US Date Posted: 2026-03-09 Category: Engineering and Sciences Subcategory: Systems Engineer Schedule: Full-Time Shift: Day Job Travel: No Minimum Clearance Required: TS.SCI Clearance Level Must Be Able to Obtain: TS/SCI with Poly Potential for Remote Work: ORA_ON_SITE Description SAIC is seeking a Senior Systems Administrator to support our government customer in Springfield, VA. Duties may include: Design, deploy, configure, secure, monitor,

Full-time

Linux/Windows Senior Systems Administrator

San Diego, California

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Today

Job Description WHO WE ARE Lockheed Martin is a global leader in aerospace, defense, and technology solutions, dedicated to pushing the boundaries of innovation and shaping the future of the industry. With a rich legacy of excellence and a commitment to delivering advanced capabilities to our customers, we are proud to be at the forefront of cutting-edge technology and engineering. WHAT WE'RE DOING At Lockheed Martin, we're revolutionizing the aerospace and defense sector through groundbreakin

Full-time

USD 81,600.00 - 143,865.00 per year

Sr Systems Administrator

Pittsburgh, Pennsylvania

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Today

Work Schedule Standard (Mon-Fri) Environmental Conditions Office Job Description COMPANY: Thermo Fisher Scientific Inc. LOCATION: 300 Industry Dr., Pittsburgh, PA 15275 TITLE: Sr Systems Administrator HOURS: Monday to Friday, 8:00 am to 5:00 pm DUTIES: Lead and supervise all installed low code application systems and infrastructure. Install, configure, test, and maintain operating systems, application software, and system management tools. Define, design, and document reference architectu

Full-time

Sr. Systems Administrator

Columbus, Ohio

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20d ago

Senior Systems Administrator / Infrastructure Architect (MSP 10+ Years) Location & Role Type Location: Columbus, OH (Primarily in-office with limited WFH flexibility) Type: Full-Time Industry: Managed IT Services (MSP / MSSP) About the Role Kloud9 IT is seeking a Senior Systems Administrator with architect-level experience to help design, standardize, and support infrastructure across multiple client environments. This role is intended for a highly experienced professional (10+ years) who h

Full-time

Not disclosed

Senior Systems Administrator

Fayetteville, North Carolina

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Today

Job Number: R0235440 Systems Administrator, Senior The Opportunity Your combination of people skills and system administrator knowledge makes you the team hero, solving one problem after another. What if you could use those skills to improve the technology supporting our client? We're looking for a system administrator who has a background in analyzing, troubleshooting, and resolving system issues to help us maintain system continuity with our client. As a system administrator on our team, you

Full-time

USD 61,900.00 - 141,000.00 per year

Senior Systems Administrator

Fayetteville, North Carolina

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Today

Job Number: R0234199 Systems Administrator, Senior The Opportunity: A well-functioning Airborne ISR Operations center is critical to enable the DoW to achieve their missions, but how can an organization make sure their network and systems will support their no-fail mission? Proactive response and predictive mitigation, with the right equipment and sof tware. That's why we need you, an experienced Network and Systems Administrator with an operational mindset who knows what it takes to provide th

Full-time

USD 61,900.00 - 141,000.00 per year

Senior Systems Administrator

Washington, District of Columbia

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Today

Overview BigBear.ai is seeking a Senior Systems Administrator to join a mission-focused engineering team supporting the sustainment, reliability, and security of two critical operating environments. This is a full-time, onsite role based in Washington, D.C., ideal for a hands-on technical leader with proven experience managing a team in a high-availability environment. You will combine deep Linux systems administration expertise with day-to-day people leadership-driving priorities, ensuring con

Full-time

Sr. Systems Administrator

Surprise, Arizona

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Today

Description We are looking for an experienced Sr. Systems Administrator to join our team in Surprise, Arizona. This Contract to permanent position offers the opportunity to manage and maintain critical IT systems within a government environment. The ideal candidate will excel at ensuring system reliability and security while providing technical support to end users. Responsibilities: Oversee the administration and maintenance of Active Directory, ensuring optimal performance and security. Manag

Easy Apply

Full-time

USD 41.16 - 47.66 per hour

Sr. Systems Administrator

Los Angeles, California

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Today

Sr. Systems Administrator Location: Los Angeles, CA This position is onsite 5 days per week. Rates may vary based on knowledge and experience. Apply now to be part of a dynamic team driving innovation in California and beyond. Summary: The Senior Systems Administrator for MES is the technical expert responsible for managing the entire IT infrastructure stack that supports 24/7 manufacturing operations-from the physical hardware (Cisco UCS) and virtualization layer (VMware) to core network servi

Easy Apply

Contract, Third Party

Senior Systems Administrator / Release Manager

Scott Air Force Base, Illinois

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Today

Overview DecisionPoint Corporation is seeking a Senior Systems Administrator / Release Manager to support our U.S. Transportation Command (USTRANSCOM) Integrated Booking System (IBS) program. This role is responsible for managing system environments, supporting infrastructure operations, and leading release management activities to ensure reliable and secure deployment of mission-critical transportation and logistics systems.The Senior Systems Administrator / Release Manager will oversee system

Full-time

Sr. Systems Administrator

Fort Mill, South Carolina

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Today

Description We are looking for an experienced Senior Systems Administrator to join our team on a long-term contract basis in Fort Mill, South Carolina. This role is ideal for someone with strong technical expertise who thrives in managing and maintaining enterprise-level systems and software. The successful candidate will play a critical role in ensuring smooth operations across multiple locations while supporting approximately 400 users. Responsibilities: Manage and maintain Active Directory e

Easy Apply

Contract

USD 42.75 - 49.50 per hour

Senior Systems Security Administrator

Chandler, Arizona

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Today

Company Overview Iridium is an award-winning and innovative satellite communications company with bragging rights to the only network that offers voice and data connectivity anywhere in the world. For over 20 years, Iridium's unique network and services have supported critical communications needs for individuals, businesses, and the evolving Internet of Things. At Iridium, we understand the importance of staying connected and the limitations of traditional communications networks. People across

Full-time

Senior Systems Administrator Windows/Azure/MS365/VMware

Wakefield, Massachusetts

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Today

This is a fulltime opportunity with a company in the Civil and Geological Engineering Consulting space. They are looking to bring on a Senior Systems Administrator to the team to help support the infrastructure and internal users. Their clients are distributed primarily across North America, and you will be supporting Systems and Infrastructure with over 1K Users. This is a hybrid onsite role in Woburn with 3 days in the office. Required Skills & Experience 5+ Years of Experience Required with t

Easy Apply

Full-time

USD 115,000.00 per year

Senior Network/Systems Administrator

Arlington, Virginia

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Today

Overview GovCIO is currently hiring a Senior Network/Systems Administrator with an active Secret clearance to ensure the smooth operation of computer systems. This position is located in Arlington, VA and is a hyrbid 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

Full-time

USD 94,150.00 - 145,000.00 per year

Senior Systems Administrator

Coral Gables, Florida

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Today

RESPONSIBILITIES: Kforce has a client in Coral Gables, FL that is seeking an experienced Senior Systems Administrator with deep expertise in hybrid cloud environments, enterprise directory services, and virtualized infrastructure. This role requires a technical professional who can manage complex systems across on-premises and cloud platforms while maintaining optimal performance, security, and reliability. Key Responsibilities: * Administer Azure Enterprise Applications including SSO configura

Contract

$55 - $60 hourly

Senior Systems Administrator (SharePoint)

Portsmouth, Virginia

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Today

Overview DecisionPoint Corporation is seeking a Senior Systems Administrator (SharePoint) for the Norfolk Naval Shipyard IT Support Services contract. NNSY's mission is to safely return warships to the Fleet on time and within budget.The Systems Administrator (SharePoint) will support the administration, maintenance, and operation of SharePoint Server environments. This role supports enterprise collaboration and content management capabilities through secure, reliable SharePoint On-Premises and

Full-time

Senior Linux Systems Administrator

Princeton, New Jersey

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Today

Job ID: T2600057 Location: Princeton, NJ, US Date Posted: 2026-03-05 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-Time Shift: Day Job Travel: No Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: Public Trust Potential for Remote Work: ORA_ON_SITE Description ? SAIC is recruiting for a Senior Linux Systems Administrator to join our program as a general technologist to support our NOAA GFDL program in Princeton, NJ serving the NOA

Full-time

USD 120,001.00 - 160,000.00 per year

Sr. Systems Administrator

Hybrid in Baltimore, Maryland

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28d ago

Job Title:Sr. Systems Administrator (Integrative Learning & Life Design)We are seeking aSr. Systems Administratorwho will perform in accordance with institutional policies and standards and be responsible for administration, configuration, scripting, maintenance, performance, implementation, security, and support of various departmental and components of enterprise-wide platforms, including the installation and testing of new software, operating systems, related utilities/services, and hardware

Full-time

85500 - 149800

Senior Network/Systems Administrator

Remote

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Today

Overview GovCIO is currently hiring for a Senior Network/Systems Administrator with an active Secret clearance. This position will be fully remote. 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 network/system operations and implement changes

Full-time

USD 94,150.00 - 145,000.00 per year

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senior systems administrator jobs in remote