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IT System Administrator United States Jobs

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High Performance Computing Linux System Administrator
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Seeking a US Citizen HPC Linux System Administrator for an on-site role in Berkeley. Provide technical leadership, design solutions, and ensure client satisfaction in high-performance computing environments. This role requires 5+ years of experience, strong consulting skills, and expertise across...
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United States , Berkeley
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78700.00 - 181200.00 USD / Year
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Hewlett Packard Enterprise
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Federal HPC Linux System Administrator
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Seeking a TS/SCI-cleared Linux Systems Administrator for a critical HPC role in Annapolis Junction. Provide technical leadership, system management, and customer support for HPE's mission-critical computing solutions. Requires 3+ years of HPC experience with RHEL/SLES, parallel file systems, and ...
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United States , Annapolis Junction
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115500.00 - 266000.00 USD / Year
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Hewlett Packard Enterprise
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HPC System Administrator
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Seeking a cleared HPC System Administrator in Stennis. This role requires TS/SCI clearance, Security+/Linux+ certs, and 8+ years' experience. You will ensure 24/7 system health, security, and SLAs for high-performance computing environments. We offer a focus on professional development and inclus...
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United States , Stennis
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101900.00 - 234500.00 USD / Year
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Hewlett Packard Enterprise
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High Performance Compute Linux System Administrator
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Seeking a High Performance Compute Linux System Administrator with an active Top Secret clearance. This on-site role in Vicksburg requires Security+, Linux+, and 5+ years of Linux admin experience. You will maintain HPC systems, ensure security, and provide expert technical leadership. We offer c...
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United States , Vicksburg
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101900.00 - 234500.00 USD / Year
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Hewlett Packard Enterprise
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High Performance Computer Linux System Administrator
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Seeking a High Performance Computer Linux System Administrator with an active Top Secret clearance in Stennis. This on-site role requires Security+ and Linux+ certifications, plus 5+ years of HPC admin experience. You will ensure system health, security, and hardware while offering critical techn...
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United States , Stennis
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101900.00 - 234500.00 USD / Year
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Hewlett Packard Enterprise
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Hpc Linux System Administrator
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Seeking an HPC Linux System Administrator to maintain critical systems in Berkeley, USA. This on-site role requires US citizenship, deep expertise in Linux (RHEL/SLES), workload managers, and parallel file systems. You will ensure high availability, resolve complex hardware/software issues, and d...
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United States , Berkeley
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78700.00 - 181200.00 USD / Year
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Hewlett Packard Enterprise
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High Performance Computing Linux System Administrator
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Join HPE as a High Performance Computing Linux System Administrator in Salt Lake City. This role requires a TS/SCI clearance and involves managing large-scale HPC systems, parallel file systems, and providing mission-critical customer support. Utilize your expertise in Linux (RHEL/SLES), scriptin...
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United States , Salt Lake City
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115500.00 - 266000.00 USD / Year
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Hewlett Packard Enterprise
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Systems Administrator
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Join our team in Fort Lauderdale as a Systems Administrator. You will maintain critical IT infrastructure, ensuring optimal performance and fast disaster recovery. The role requires expertise in server/network administration (Windows/Linux), cybersecurity, and virtualization. We offer comprehensi...
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United States , Fort Lauderdale
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Robert Half
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System Administrator 1
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Seeking a System Administrator with an active Security Clearance in Annapolis Junction. Provide Tier 1/2 support, manage IT infrastructure, and configure UNIX/Windows systems. Requires 5+ years of experience, DOD 8570 Certification, and U.S. Citizenship. Enjoy top-tier medical, dental, vision, an...
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United States , Annapolis Junction
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Columbia Technology Partners
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System Administrator 2
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Seeking an experienced System Administrator for a critical role in Annapolis Junction. This position requires 10+ years of SA experience, a security clearance, and expertise in UNIX/Windows system management and troubleshooting. We offer a comprehensive benefits package including fully paid denta...
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United States , Annapolis Junction
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Columbia Technology Partners
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System Administrator 2
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Seeking a Level 2 System Administrator in Annapolis Junction to provide Tier 1/2 support for critical IT infrastructure. This role requires 10 years of experience, a security clearance, and expertise in Windows/UNIX, networks, and databases. We offer superior medical benefits, a 6% 401k match, an...
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United States , Annapolis Junction
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Columbia Technology Partners
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System Administrator Level 2
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Seeking a Level 2 System Administrator in Annapolis Junction. This role requires 10 years of experience, a security clearance, and DOD 8570 certification. You will provide Tier 1/2 support, manage IT infrastructure, and optimize system performance. We offer robust medical plans, a 6% 401k match, ...
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United States , Annapolis Junction
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Columbia Technology Partners
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Linux Systems Administrator
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Join our team in Philadelphia as a Linux Systems Administrator. You will deploy and maintain critical vCMTS and R-PHY systems, ensuring high availability in a 24/7 environment. We require 5-10 years of Linux administration and strong Cisco/Juniper networking expertise. This role offers comprehens...
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United States , Philadelphia
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Not provided
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Robert Half
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High Performance Computing System Administrator
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Seeking a High Performance Computing System Administrator in Dayton, USA. This role requires a Top Secret clearance, 8+ years of HPC experience, and expertise in Linux, workload managers (e.g., Slurm), and high-speed networking. You will provide technical leadership, ensure system availability, a...
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United States , Dayton
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105500.00 - 243000.00 USD / Year
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Hewlett Packard Enterprise
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Systems Administrator
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Join our team in Sparta, Michigan as a Systems Administrator. Utilize your expertise in Microsoft platforms, Active Directory, and network troubleshooting to deliver tailored client solutions. We offer competitive compensation, comprehensive benefits, and free online training in a collaborative e...
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United States , Sparta
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Robert Half
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Systems Administrator
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Seeking a skilled Systems Administrator for a contract role in Nashville. You will manage Windows/Linux servers, network infrastructure, and security protocols. This position offers comprehensive benefits and requires strong troubleshooting and problem-solving skills.
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United States , Nashville
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Not provided
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Robert Half
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Systems Administrator
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Join our team as a Systems Administrator in Fort Worth. Provide vital technical support for Windows systems, networks, and video conferencing platforms like Zoom and Teams. We seek a skilled professional with 3+ years of experience, excellent communication, and customer service skills. Enjoy comp...
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United States , Fort Worth
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Not provided
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Robert Half
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Federal HPC Linux System Administrator
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Join HPE as a Federal HPC Linux System Administrator in Annapolis Junction. This role requires a TS/SCI clearance and expertise in large-scale HPC, parallel file systems, and Linux (RHEL/SLES). You will provide critical technical leadership, system optimization, and customer support for mission-c...
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Location
United States , Annapolis Junction
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Salary
119500.00 - 275000.00 USD / Year
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Hewlett Packard Enterprise
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Linux Systems Administrator
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Join our team as a Linux Systems Administrator in Roseville. Utilize your 5+ years of Linux, NFS, and virtualization (VMware/KVM) expertise to manage critical infrastructure. Automate tasks with Bash/Python/Ansible and provide excellent technical support. We offer comprehensive wellbeing benefits...
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United States , Roseville
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Salary
106000.00 - 243000.00 USD / Year
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Hewlett Packard Enterprise
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Travel Systems Administrator
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Seeking a detail-oriented Travel Systems Administrator in the San Francisco Bay Area. You will manage corporate travel logistics, administer the internal booking system, and handle expense reconciliation. The role requires 2+ years of admin experience, proficiency in MS Office, and strong organiz...
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United States , San Francisco Bay Area
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Salary
28.00 - 30.00 USD / Hour
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80Twenty
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Explore a world of opportunity in IT System Administrator jobs, the backbone of modern organizational technology. IT System Administrators are the essential professionals responsible for installing, configuring, maintaining, and securing the critical hardware and software systems that keep businesses running. This career path sits at the intersection of technical expertise and operational reliability, offering a dynamic and rewarding profession for those who enjoy problem-solving and ensuring seamless digital workflows. In a typical role, an IT System Administrator’s responsibilities are vast and vital. They manage and monitor an organization's servers, often leveraging virtualization platforms like VMware or Hyper-V, and are increasingly involved with cloud services from providers such as AWS, Microsoft Azure, or Google Cloud Platform. A core duty is maintaining network services, including Active Directory, DNS, DHCP, and email systems like Microsoft Exchange or Microsoft 365. They ensure all endpoints—employee laptops, desktops, and mobile devices—are properly configured, updated, and secure, frequently using tools like Microsoft Intune or Jamf. System Administrators also implement robust backup solutions, conduct disaster recovery tests, and apply security patches and updates to protect against vulnerabilities. They provide escalated technical support, troubleshoot complex system issues, and create detailed documentation for system configurations and procedures. The skill set for these jobs is both broad and deep. Foundational knowledge of operating systems is paramount, with expertise in Windows Server and/or Linux distributions being highly common. Understanding core networking concepts (TCP/IP, routing, firewalls) and security principles (access controls, hardening, compliance frameworks) is non-negotiable. Proficiency in scripting with PowerShell, Bash, or Python to automate repetitive tasks is a major asset that increases efficiency. Strong analytical and problem-solving skills are essential for diagnosing system failures or performance bottlenecks. Equally important are soft skills: clear communication to assist colleagues and document processes, meticulous attention to detail, and the ability to manage multiple priorities in a high-pressure environment. Typical requirements for IT System Administrator jobs often include a bachelor’s degree in computer science, information technology, or a related field, though relevant experience and professional certifications can be equally valuable. Certifications such as Microsoft Certified: Azure Administrator Associate, CompTIA Server+, CompTIA Security+, Red Hat Certified System Administrator (RHCSA), or VMware Certified Professional (VCP) are frequently sought by employers. A successful candidate is typically proactive, eager to learn new technologies as the IT landscape evolves, and committed to maintaining system uptime and security. For those passionate about building stable, efficient, and secure digital infrastructures, pursuing IT System Administrator jobs offers a stable career with continuous growth and challenge. It is a role where technical skill directly translates into organizational success, making these professionals indispensable in every sector of the economy.

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