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

103 Job Offers

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Systems Administrator IV
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Seeking an expert Systems Administrator IV in Huntsville, AL, requiring an active DoD Secret clearance. Lead the architecture and hardening of Windows Server/11 and VMware environments in compliance with DISA STIGs. Key duties include managing Active Directory, Group Policy, and supporting RMF/AT...
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United States , Huntsville, Alabama
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Arcfield
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Linux Systems Administrator
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Seeking a Linux Systems Administrator with an active Top Secret/SCI clearance to support TRADOC G2 at Fort Eustis, VA. You will manage and secure mission-critical RHEL environments, ensuring compliance with DISA STIGs. Key duties include system hardening, troubleshooting, and automating tasks wit...
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United States , Fort Eustis
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Barbaricum
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System Administrator
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Seeking a cleared System Administrator to support mission-critical operations at Fort Eustis, VA. You will manage and sustain Windows Server and Linux systems within secure, classified environments. This role requires strong skills in DISA STIG compliance, troubleshooting, and ensuring operationa...
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United States , Fort Eustis
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Barbaricum
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System Administrator / Asset Manager
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Seeking a System Administrator / Asset Manager for a dual-role position at Fort Leavenworth, KS. This role requires an active DoD Top Secret/SCI clearance and expertise in classified IT systems administration and asset lifecycle management. You will maintain systems, track inventory, and ensure c...
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United States , Fort Leavenworth, Kansas
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Barbaricum
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Systems Administrator
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Join our team as a Systems Administrator in El Segundo. Support our enterprise IT, managing Microsoft 365, VMware, and AWS environments. Ideal candidates have scripting skills and foundational security knowledge. We offer comprehensive benefits including full family medical coverage.
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United States , El Segundo
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55000.00 - 75000.00 USD / Year
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Tecolote Research
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Systems Administrator
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Seeking a Systems Administrator in Alpharetta to manage Sun Solaris/UNIX servers and databases for high-performance websites and large-scale data processing. This role requires a Master's degree (or Bachelor's with 5 years' experience) and 6 months of relevant systems maintenance expertise. Exten...
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United States , Alpharetta
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Nebula Partners
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Systems Administrator
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Seeking a Systems Administrator in Alpharetta to install, configure, and maintain UNIX and database servers for high-performance websites and large-scale data processing. This role requires expertise in Sun Solaris systems and involves travel to client sites across the USA. A relevant Master's de...
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United States , Alpharetta
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Nebula Partners
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Systems Administrator
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Seeking a Systems Administrator in Alpharetta to install, configure, and maintain UNIX and database servers for high-performance websites and large-scale data processing. This role requires expertise in Sun Solaris systems and involves travel to client sites across the USA. A relevant Master's de...
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United States , Alpharetta
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Nebula Partners
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Systems Administrator
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Join our team as a Systems Administrator in Memphis. This onsite role requires expertise in on-prem systems, Microsoft technologies, VMware, and Cisco Meraki networking. You will provide end-to-end IT support and help evolve our hybrid environment toward Azure. We offer comprehensive benefits inc...
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United States , Memphis
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Robert Half
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Senior Systems Administrator
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Join Naughty Dog's IT team as a Senior Systems Administrator in Santa Monica. You will be the primary expert for our Windows/Linux infrastructure and core systems, supporting game development. Requires 10+ years in studio environments, expertise in Windows Server, Ubuntu, and deployment tools. Th...
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United States , Santa Monica
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149000.00 - 187200.00 USD / Year
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Naughty Dog
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System Administrator
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Seeking a System Administrator (journeyman to Senior) in Pax River, MD, supporting Air Traffic Control systems. This role requires a BS degree, Security+ certification, and strong Linux expertise for vulnerability scanning and STIG compliance. U.S. Citizenship and ability to obtain a Top-Secret c...
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United States , Pax River
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Coherent Technical Services
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IT PACS Sr Systems Administrator
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Seeking an experienced PACS Sr Systems Administrator in Houston. Lead the implementation and optimization of medical imaging systems, ensuring compliance and security. Collaborate with clinical teams and provide advanced technical support. Enjoy comprehensive benefits including medical plans and ...
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United States , Houston
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42.17 - 62.73 USD / Hour
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American Nursing Care
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Systems Administrator
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Join Hyundai Autoever America as a Systems Administrator in San Diego. You will maintain core infrastructure, including servers, virtualization, and multi-cloud platforms (Azure, AWS, GCP). This role requires expertise in both Linux and Windows Server environments, plus VMware and security best p...
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United States , San Diego
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85000.00 - 105000.00 USD / Year
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Hyundai AutoEver America
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System Administrator II
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Seeking a Systems Administrator II to provide technical leadership for server infrastructure in Savannah. This role requires 5+ years of Windows/Linux administration and 2+ years of VMware vSphere/vSAN expertise. You will design and implement high-impact IT solutions using leading-edge technologi...
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United States , Savannah
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68680.00 - 98208.00 USD / Year
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Hyundai AutoEver America
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Linux System Administrator
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Join Geon Technologies as a Linux System Administrator in Columbia, MD. This role requires 10+ years of experience, an active security clearance, and expertise in Linux/Unix, Kubernetes, and configuration management (e.g., Ansible). You will provide Tier 1/2 support, manage IT systems, and enjoy ...
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United States , Columbia
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175000.00 - 250000.00 USD / Year
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Geon Technologies
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Jr. System Administrator
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Launch your IT career at Lake Superior State University as a Jr. System Administrator. This role involves developing and maintaining applications for the Ellucian Banner system using Oracle PL/SQL and Java. You'll gain valuable experience in a collaborative higher-ed environment located in Sault ...
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United States , Sault Ste. Marie
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Lake Superior State University
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System Administrator
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Seeking a System Administrator in Mechanicsburg to provide comprehensive IT support, including desktop hardware, software installation, and network security. This role requires strong troubleshooting skills, knowledge of IT concepts, and experience in help desk or end-user support. You will admin...
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United States , Mechanicsburg
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Ocean Blue Solutions
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Systems Administrator
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Join our Austin-based team as a Systems Administrator on a contract basis. You will manage enterprise VoIP, macOS/Windows environments, and MDM platforms like JAMF/Intune. Provide Tier 2 support and enhance security while utilizing tools like Google Workspace and Slack. This role offers competiti...
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United States , Austin
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Robert Half
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Systems Administrator
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Join our team in Victor, USA, as a Systems Administrator. You will maintain client infrastructure, provide technical support, and assist with internal systems. The role requires expertise in Microsoft environments, Azure, VMware/Hyper-V, and hardware troubleshooting. A relevant degree or 3 years ...
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United States , Victor
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70000.00 - 85000.00 USD / Year
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Brite
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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. Ideal candidates have 2+ years of admin experience, proficiency in MS Office, and strong org...
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United States , San Francisco Bay Area
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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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