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IT System Administrator Jobs (On-site work)

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Manufacturing Systems (42Q) Administrator
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United States , Carrollton
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Sanmina
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Business Systems Administrator
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United States , Mendota Heights
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65120.00 - 95348.00 USD / Year
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KeHE Distributors
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Systems Administrator
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Join our team in Beaver Falls, PA, as a Systems Administrator. This direct-hire role involves administering Active Directory, Azure, and 365 environments, plus overseeing MSP work. We seek a professional with 2+ years' experience, firewall skills, and knowledge of SQL and cloud platforms. We offe...
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United States , Beaver Falls
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Robert Half
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Systems Administrator
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Seeking a Systems Administrator for a key role in Fairview Park, OH. You will design and implement network hardware/software in a VMware/Microsoft environment. This position offers medical benefits and a 401(k) plan, requiring expertise in Active Directory and firewall technologies.
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United States , Fairview Park
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Robert Half
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Systems Administrator
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Join our team in Sandy Springs as a Systems Administrator. Provide first-level IT support and manage user accounts, permissions, and core systems. Utilize your expertise in Cisco, Citrix, Cloud, and Active Directory technologies. We offer comprehensive benefits including medical, dental, vision, ...
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United States , Sandy Springs
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Robert Half
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Systems Administrator
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Join our aerospace team in Swanton, Ohio, as a Systems Administrator. You will manage and support the Infor XA software on AS/400 systems, ensuring optimal performance and uptime. This role requires 2+ years of experience, a relevant degree, and proficiency in IBM i architecture. We offer competi...
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United States , Swanton
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Robert Half
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Systems Administrator
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Seeking a skilled Systems Administrator in Tallahassee to serve as a Subject Matter Expert. You will manage Microsoft Azure resources, Active Directory, and hybrid Windows/Linux environments. Key duties include deployments, troubleshooting, PowerShell scripting, and system optimization. This role...
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United States , Tallahassee
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Robert Half
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Financial Systems Administrator
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Join a growing Central Jersey supply chain firm as a Financial Systems Administrator. You will manage Dynamics 365 F&O administration, including security, upgrades, and system health. Collaborate with finance teams to optimize workflows and ensure robust data security. This role offers comprehens...
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United States , New Brunswick
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Robert Half
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Systems Administrator
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Join our team in Tallahassee as a Systems Administrator. You will manage IT infrastructure, ensure system security, and provide technical support. The role requires expertise in Windows/Linux servers, networking, and cloud services like AWS/Azure. We offer a competitive salary, health insurance, ...
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United States , Tallahassee
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Robert Half
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Systems Administrator
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Join our team in New York as a Systems Administrator. You will manage our technical infrastructure, focusing on Microsoft Entra ID, Azure AD, and MFA. This role requires strong troubleshooting skills and expertise in network systems. We offer comprehensive benefits including medical, dental, visi...
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United States , New York
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Robert Half
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Systems Administrator
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Join our Des Moines team as a Systems Administrator. You will manage and optimize servers, storage, and networks, ensuring security and performance. Key requirements include Cisco, Firewall, VMware, Citrix, and Microsoft Exchange expertise. We offer comprehensive medical, vision, dental, and 401(...
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United States , Des Moines
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Robert Half
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Systems Security Administrator
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Seeking a Systems Security Administrator for a long-term contract in New York. You will manage security via firewalls, IDS/IPS, and Active Directory, while handling tickets and deploying systems. This role requires expertise in Cisco, access control, and configuration management. Benefits include...
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United States , New York
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Robert Half
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System Administrator
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Join our Atlanta-based team as a System Administrator. You will manage Azure AD, Office 365, and Hyper-V environments, ensuring optimal performance and security. We seek a skilled professional with strong troubleshooting abilities. We offer a comprehensive benefits package including medical, dent...
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United States , Atlanta
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Robert Half
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System Administrator
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Join our Atlanta-based team as a System Administrator. You will manage Azure AD, Office 365, and Hyper-V environments, ensuring optimal performance and security. We seek a skilled professional with strong troubleshooting abilities. This role offers a comprehensive benefits package including medic...
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United States , Atlanta
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Robert Half
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Systems Administrator
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Join our team in Irving, Texas as a Systems Administrator. You will support our unique retail POS system and manage IT vendor relationships. Requires 5+ years of retail IT experience, expertise in Active Directory, Windows, SonicWall, and hardware. We offer comprehensive benefits including medica...
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United States , Irving
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Robert Half
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Linux Systems Administrator
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Join Fyld in Lisbon as a Linux Systems Administrator. Utilize your 4+ years of experience with CentOS, Ubuntu, and automation tools like Ansible. You will manage web/database servers, implement security, and work with cloud platforms. We focus on training and excellence for peak performance.
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Portugal , Lisboa
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Fyld
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Windows Systems Administrator
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Join Fyld in Lisbon as a Windows Systems Administrator. Utilize your 4+ years of experience managing Windows Server, Active Directory, and O365. Expertise in VMware/Hyper-V and backup solutions is key. We value high standards and offer a focus on training and excellence.
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Portugal , Lisboa
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Fyld
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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. Provide technical leadership managing mission-critical HPC systems, including RHEL/SLES, parallel file systems, and networking. Utilize scripting skills (Python, Perl) for optimization and problem resolution within a supp...
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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 System Administrator
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Seeking a TS-cleared HPC System Administrator in Aberdeen. This role involves maintaining high-performance computing systems, ensuring security compliance, and providing 24/7 support. Requires 8+ years' experience, Linux+/Security+ certs, and offers a $20K annual bonus.
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United States , Aberdeen
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101900.00 - 234500.00 USD / Year
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Hewlett Packard Enterprise
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Infrastructure Senior Tech Analyst – ORMB System Administrator
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Seeking an experienced ORMB System Administrator in Pune. You will manage Oracle Revenue Management and Billing (v2.9/3.X+) on RHEL/Oracle 19C/WebLogic. Key duties include environment setup, cloning, performance tuning, and automation. Expertise in Oracle DB, middleware, and modern DevOps/SRE pra...
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India , Pune
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Not provided
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Citi
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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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