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IT System Administrator Jobs

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Windows System Administrator
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Join our team in Lisbon as a Windows System Administrator. You will maintain and elevate our IT infrastructure, ensuring high system availability and SLA targets. The role requires deep Windows Server expertise, proficiency in Microsoft technologies like Hyper-V and Azure, and strong problem-solv...
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Portugal , Lisbon
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Not provided
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Inetum
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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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High Performance Computing System Administrator
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Seeking a US Citizen HPC System Administrator in Livermore. Maintain critical Linux-based high-performance computing systems, utilizing scripting and workload management expertise. This role offers a comprehensive benefits package and requires strong problem-solving skills in a team-oriented, sec...
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United States , Livermore
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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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Join Hewlett Packard Enterprise as a Federal HPC Linux System Administrator. This role requires TS/SCI clearance and involves maintaining Linux systems, resolving complex hardware/software issues, and supporting parallel file systems. We offer a flexible, inclusive environment with remote/on-site...
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United States , San Diego
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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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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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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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Senior System Administrator
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Join our team as a Senior System Administrator, specializing in SAP ASE database administration, tuning, and migration. You will manage large databases, utilize tools like Prometheus, and lead projects migrating from Solaris/Spark to x86. Enjoy a flexible hybrid model with offices in Warsaw, Lubl...
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Poland , Warsaw
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Not provided
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Inetum
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System Administrator L2
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Seeking a skilled System Administrator L2 in Gurgaon to manage IT operations for 20,000+ endpoints. You will handle OS patching, upgrades, and compliance using tools like ManageEngine Endpoint Central. This role requires 5+ years of experience, relevant certifications, and offers health benefits ...
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India , Gurgaon
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Not provided
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Hewlett Packard Enterprise
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New
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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Not provided
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Robert Half
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New
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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Not provided
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Columbia Technology Partners
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New
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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Not provided
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Columbia Technology Partners
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New
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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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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