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IT System Administrator Jobs

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IT Systems Administrator
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Join our team in Frisco as an IT Systems Administrator. Oversee and optimize our server infrastructure, storage, and end-user environment. This role requires 5+ years of experience with Windows Server, Azure, and Active Directory. We offer comprehensive benefits including medical, dental, vision,...
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United States , Frisco
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Robert Half
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Systems Administrator
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Seeking a skilled Systems Administrator for a part-time, long-term contract in Menomonee Falls, WI. You will manage virtualized environments (Hyper-V/VMware), administer Dell/HP servers, and implement secure backup solutions. This 16-24 hour/week role requires expertise in Active Directory, Windo...
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United States , Menomonee Falls
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Robert Half
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Linux System Administrator with CI/CD and Automation Expertise
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Join our team in Ahmedabad as a Linux System Administrator. You will manage production Linux infrastructure and implement CI/CD pipelines using Jenkins or GitLab. Expertise in automation with Bash/Python and tools like Ansible is essential.
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India , Ahmedabad
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HoduSoft
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Systems Administrator Operations Support Specialist
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Join our Operations Control Centre in Guelph as a Systems Administrator. Utilize your 5-8+ years of z/OS mainframe, UNIX, and Windows expertise to monitor critical infrastructure. You will ensure high availability, manage incidents, and provide hands-on data center support. This vital role offers...
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Canada , Guelph
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Randstad
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Senior Windows System Administrator
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Seeking a Senior Windows System Administrator in Los Altos for a hands-on role managing a complex hybrid environment. You will own VDI (VMware Horizon), advanced Active Directory/Group Policy, and PowerShell automation. This position requires translating instructional needs into technical solutio...
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United States , Los Altos
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Robert Half
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Senior System Administrator
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Join 2HB Incorporated as a Senior System Administrator in Annapolis Junction, MD. This role requires expertise in Windows/Linux Server, VMware/ESXi, and NetApp storage, with an Active DoD IAT Level II cert. You will ensure system security, perform troubleshooting, and manage network resources. Id...
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United States , Annapolis Junction
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2HB
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Systems Administrator
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Join our New York team as a Systems Administrator, a vital role ensuring smooth IT operations and end-user support. You will manage systems across Windows 11, Microsoft 365, and Azure, while providing high-level technical assistance. This position offers a full benefits package including medical,...
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United States , New York
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Robert Half
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System Administrator 2
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Seeking an experienced System Administrator to support IT infrastructure in Central Maryland. This role requires 10 years of SA experience, expertise in UNIX/Windows systems, and active problem resolution for client/server/networks. Must hold an active Security Clearance with Polygraph. We offer ...
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United States , Central Maryland
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150000.00 - 180000.00 USD / Year
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RealmOne
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Systems Administrator 3
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Join Lam as an OT Systems Administrator in Fremont, supporting critical Engineering Lab operations. You will ensure reliable, secure IT/OT services, managing infrastructure and providing Tier 1/2 support. This role requires 5-7+ years in enterprise IT, strong collaboration skills, and hands-on la...
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United States , Fremont
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72000.00 - 170000.00 USD / Year
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Lam Research
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System Administrator
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Join our team as a System Administrator in India. Maintain and secure our critical IT infrastructure, including servers, networks, and systems. We seek a proactive professional with 2+ years' experience in Windows/Linux environments and networking. Ensure reliability and provide essential technic...
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India
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Bridge Soft Solutions
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Senior System Administrator / System Engineer - Linux
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Seeking a Senior Linux System Administrator/Engineer for a mission-critical Intelligence Community role in Annapolis Junction. Requires 10+ years' expertise with RHEL/CentOS, VMware, JBoss/WildFly, Ansible, and scripting. Active Security Clearance with Polygraph and Security+ certification are ma...
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United States , Annapolis Junction
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Columbia Technology Partners
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Senior System Administrator / System Engineer - Linux
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Seeking a Senior Linux System Administrator/Engineer for a mission-critical Intelligence Community role in Annapolis Junction. This position requires 10+ years of Linux expertise (CentOS/RHEL), VMware, Ansible, and an active Security Clearance. Enjoy top-tier benefits including a 6% 401k match, c...
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United States , Annapolis Junction
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Columbia Technology Partners
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IT Systems Administrator
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Join CommonSpirit Health as an IT Systems Administrator in Englewood. You will implement, maintain, and optimize the critical ServiceNow platform, ensuring stability and performance. This role requires 4-6 years of IT experience, ServiceNow CSA certification, and strong problem-solving skills. We...
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United States , Englewood
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36.59 - 54.43 USD / Hour
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American Nursing Care
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Senior Systems Administrator
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Seeking a Senior Systems Administrator in Surprise, USA. Lead critical IT infrastructure, including VMware, SAN storage, and Microsoft Exchange. Requires 5+ years' experience with Linux, Active Directory, and PowerShell automation. Competitive benefits include medical, dental, vision, and a 401(k...
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United States , Surprise
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Robert Half
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Hpc Linux System Administrator
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Join HPE in Bangalore as an HPC Linux System Administrator. You will manage and optimize high-performance computing clusters, ensuring peak performance and security. This role requires strong Linux administration skills and experience with tools like Slurm, Ansible, and Lustre. We offer a focus o...
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India , Bangalore
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Hewlett Packard Enterprise
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Systems Administrator
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Join our team in Irvine, CA as a Systems Administrator. You will manage Microsoft environments, SharePoint, and user accounts while coordinating with MSPs. This role requires 2+ years of experience, strong troubleshooting skills, and a proactive approach. We offer comprehensive benefits including...
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United States , Irvine
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Robert Half
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Systems Administrator
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Join Aruma as a Systems Administrator to engineer and maintain a stable, secure technology environment. This flexible Australia-based role requires 3+ years' experience with Active Directory, virtualization, and Azure/O365. Enjoy a competitive salary package with NFP benefits and continuous learn...
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Australia , Flexible
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Aruma
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Intermediate Systems Administrator Operations Support Specialist
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Seeking an Intermediate Systems Administrator for an 18-month contract in North York. Provide critical Tier 1 support and administer systems like SharePoint for public sector healthcare projects. Requires 5+ years of experience with public-sector health IT and methodologies like PMI. Competitive ...
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Canada , North York
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330.15 - 369.56 CAD / Hour
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Randstad
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System Administrator Senior
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Seeking a Senior System Administrator to support HPC and data analytics for a critical research lab. This role requires extensive Linux/Windows expertise, TS/SCI clearance with polygraph, and 8+ years of lead experience. You will design, maintain, and optimize cutting-edge systems in a mission-fo...
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United States , Catonsville
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77600.00 - 176000.00 USD / Year
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Booz Allen Hamilton
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System Administrator
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Seeking a Linux System Administrator in Columbia, MD to design and maintain Cross Domain Solutions for critical DoD cybersecurity missions. Requires 3+ years with RHEL/CentOS, VMware, Git, and an active TS/SCI with polygraph. You'll enhance enterprise security and performance while receiving comp...
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United States , Columbia
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77600.00 - 176000.00 USD / Year
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Booz Allen Hamilton
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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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