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

104 Job Offers

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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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Systems Administrator
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Seeking a Systems Administrator in Little Rock to manage our VMware and server infrastructure. You will deploy, monitor, and secure Windows/Linux systems, Active Directory, and disaster recovery solutions. This role requires 3+ years of experience and offers a full benefits package including medi...
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United States , Little Rock
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Not provided
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Robert Half
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Mortgage LOS Systems Administrator / Encompass Systems Analyst
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Seeking a Mortgage LOS Systems Administrator with expertise in ICE Encompass or Black Knight. You will configure, enhance, and support loan origination platforms, collaborating on system improvements and troubleshooting. This Des Moines role offers a competitive package including bonus, profit sh...
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United States , Des Moines
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100000.00 USD / Year
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Robert Half
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Cloud System Administrator
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Join our team in Pasadena, CA as a Cloud System Administrator. Lead cloud migration and manage Azure, Office 365, and VMware vSphere platforms. Utilize PowerShell for automation and ensure security with Defender and Intune. We offer comprehensive benefits including medical, dental, vision, and a ...
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United States , Pasadena, CA
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80000.00 - 90000.00 USD / Year
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Robert Half
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Senior Network and Systems Administrator
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Seeking a Senior Network and Systems Administrator for a critical role at USSOCOM HQ on MacDill AFB, FL. This position requires 7+ years of network design/support experience, active Secret clearance, and IAT certification. You will manage secure LAN systems, ensure DISA compliance, and perform ke...
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United States , MacDill AFB, FL
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Not provided
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Delta Solutions & Strategies
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Azure System Administrator
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Join our team in Pleasanton, CA, as an Azure System Administrator. This contract-to-permanent role requires 3-5 years of experience managing Azure, Windows Server, and VMware. You will oversee cloud infrastructure, migrations, and security while providing Tier 2 support. We offer competitive bene...
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United States , Pleasanton
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Not provided
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Robert Half
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System Administrator Level 2
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Seeking an experienced System Administrator Level 2 in Annapolis Junction. This role involves managing IT infrastructure, providing Tier 1/2 support for client/server/storage/network systems, and configuring UNIX/Windows OS. Requires 10 years' SA experience, a security clearance, and DOD 8570 cer...
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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
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Seeking a System Administrator to lead IT operations at Andersen AFB, Guam. This role requires a Bachelor's degree, 10+ years' experience, and Security+ certification. You will manage hardware/software systems and ensure compliance, requiring a Top Secret clearance. We offer full benefits includi...
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United States , Andersen AFB, Yigo
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TDX
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Windows Systems Administrator
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Seeking a Windows Systems Administrator to manage our Windows domain and infrastructure in Chantilly, Warrenton, or McLean. You'll leverage Active Directory, Group Policy, and PowerShell for systems provisioning, security, and automation. This role requires 5+ years of experience and offers excel...
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United States , Chantilly; Warrenton; McLean
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Not provided
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Leading Path Consulting
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Systems Administrator
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Join Zachary Piper Solutions as a Systems Administrator supporting a critical DoDIN program at Fort Meade, MD. This onsite role requires an active TS/SCI clearance, Security+ certification, and expertise in Windows/Linux systems administration. You will provide vital sustainment for a mission-cri...
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United States , Fort Meade
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75000.00 - 80000.00 USD / Year
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Piper Companies
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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. The role requires 2+ years of admin experience, proficiency in MS Office, and strong organiz...
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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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System Administrator
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Seeking a seasoned System Administrator to secure and modernize IT infrastructure within a regulated U.S. Defense environment. This Tampa-based role requires 7+ years' experience, expertise in Windows enterprise systems, and compliance knowledge (NIST/CMMC). U.S. citizenship and the ability to ob...
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United States , Tampa
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Not provided
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Aero Simulation, Inc. (ASI)
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ERP Financial Systems Analyst / ERP Administrator
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Seeking an ERP Financial Systems Analyst/Administrator for a direct-hire role in Des Moines. Implement and configure NetSuite, Dynamics, or a mid-tier ERP, leveraging SQL and financial acumen. Enjoy a collaborative environment, diverse projects, and a strong benefits package up to $120K. A releva...
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United States , Des Moines
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120000.00 USD / Year
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Robert Half
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Senior Systems Administrator
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Join Geonetric as a Senior Systems Administrator in Cedar Rapids. You will manage and improve critical IT systems including Office 365, SaaS apps, and hybrid AAD/Entra ID environments. This role requires 5+ years of experience, proficiency in desktop support, and expertise in Active Directory and...
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United States , Cedar Rapids
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Not provided
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Geonetric
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Systems Administrator Intern
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Seeking a Systems Administrator Intern in Annapolis Junction to support information management systems. Perform day-to-day administration, capacity analysis, and automation using scripts. Requires system configuration knowledge and ability to obtain a Secret clearance. Offers comprehensive benefi...
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United States , Annapolis Junction
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52900.00 - 108000.00 USD / Year
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Booz Allen Hamilton
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IT System Administrator
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Seeking an IT System Administrator in Bonita Springs to manage and optimize our Yardi Voyager ERP and financial systems. You'll ensure data integrity, handle user access, and support integrations. Requires 3-5 years of ERP experience, SQL knowledge, and strong problem-solving skills. We offer a c...
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United States , Bonita Springs
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80000.00 USD / Year
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Rittenhouse Village At Michigan City
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Hcm Systems Administrator
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Join our team as an HCM Systems Administrator in Des Moines. You will support and optimize our global Human Capital Management platform, ensuring reliability and compliance for HR and payroll. The role requires 3+ years of HCM/HRIS experience, with Dayforce preferred. We offer comprehensive benef...
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United States , Des Moines
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Not provided
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Robert Half
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Systems Administrator
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Join our team in Fairview Park, Ohio, as a Systems Administrator. You will manage Microsoft Server, Azure, and network infrastructure, ensuring seamless operations. This role requires 5+ years of Microsoft systems experience and offers medical benefits and a 401(k).
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United States , Fairview Park
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Not provided
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Robert Half
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Sr Systems Administrator
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Seeking a Senior Systems Administrator with an active security clearance to support IT systems in San Antonio. This role requires 15+ years of experience, expertise in Linux, Ansible, and Cisco networking. We offer competitive compensation, comprehensive benefits, and a strong work-life balance.
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United States , San Antonio
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150000.00 - 180000.00 USD / Year
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ELEVI Associates
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System Administrator, Senior
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Seeking a Senior System Administrator in Columbia, MD, to design and maintain critical Cross Domain Solutions. Requires TS/SCI clearance, 5+ years' experience with Linux (RHEL/CentOS), VMware, and networking. This role offers competitive benefits and the chance to support vital national cybersecu...
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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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