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IT System Administrator United States Jobs (On-site work)

104 Job Offers

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Systems Administrator
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Seeking a skilled Systems Administrator for our Oak Brook healthcare team. You will manage VMware, Microsoft 365, and Windows systems, ensuring security and efficiency. This role requires 3+ years of healthcare IT experience, PowerShell scripting, and strong problem-solving skills. We offer compr...
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United States , Oak Brook
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Not provided
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Robert Half
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Cloud System Administrator
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Seeking a Cloud System Administrator in Lexington to oversee our AWS infrastructure and ensure optimal performance. Your role will involve automation with Ansible, security configuration, and managing systems like EC2 and Cloudflare. We offer comprehensive benefits including medical, dental, and ...
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United States , Lexington
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Robert Half
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Systems Administration Professional
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Join our Houston team as a Systems Administration Professional. You will manage our IT infrastructure, ensuring security and reliability. The role requires 3-5 years' experience, networking knowledge, and Salesforce platform familiarity. We offer comprehensive benefits and a supportive environment.
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United States , Houston
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Not provided
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Robert Half
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Systems Administrator
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Seeking a skilled Systems Administrator in Anoka to manage IT infrastructure, optimize networks, and implement cybersecurity strategies. This role requires 5+ years of experience in system administration and project coordination. You will ensure operational efficiency, resolve technical issues, a...
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United States , Anoka
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Not provided
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Robert Half
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Cloud System Administrator
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Seeking a Cloud System Administrator in West Chester to manage Azure, Office 365, and Active Directory infrastructure. You will implement IaC with Terraform, oversee API management, and ensure security. This role offers competitive compensation, comprehensive benefits, and access to top-tier trai...
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United States , West Chester
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Not provided
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Robert Half
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Systems Administrator
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Join our tech client in Ames, Iowa, as a Systems Administrator/Network Engineer. Deploy Windows images, manage O365/Intune, and support Cisco hardware in this direct-hire role. Enjoy full benefits, a 401(k), and a salary up to $95K for your 3+ years of systems administration expertise.
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Location
United States , Ames
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95000.00 USD / Year
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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 Livermore, CA. This role requires extensive Linux expertise (RHEL/SLES), workload management, and parallel file systems to maintain critical HPC infrastructure. You will provide technical leadership, ensure system availability, and solv...
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United States , Livermore, CA
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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 mission-critical HPC role in Utah. Provide technical leadership managing large-scale HPC systems, parallel file systems, and Linux (RHEL/SLES). Join HPE to ensure system optimization, resolve complex issues, and support national security ...
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United States , Utah, near Salt Lake City
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101900.00 - 234500.00 USD / Year
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Hewlett Packard Enterprise
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High Performance Computing Linux System Administrator
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Seeking a TS/SCI-cleared High Performance Computing Linux System Administrator for an on-site role in Utah. Provide advanced technical consulting and leadership, designing enterprise IT solutions for complex customer needs. This senior position requires 12+ years of expertise, vendor certificatio...
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United States , Utah
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115500.00 - 266000.00 USD / Year
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Hewlett Packard Enterprise
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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 with Poly clearance and expertise in RHEL/SLES, parallel file systems, and scripting. You will provide critical system management, optimization, and technical leadership for mission-critical cu...
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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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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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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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Salary
115500.00 - 266000.00 USD / Year
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Hewlett Packard Enterprise
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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 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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Not provided
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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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Not provided
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Columbia Technology Partners
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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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Salary
105500.00 - 243000.00 USD / Year
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Hewlett Packard Enterprise
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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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