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IT System Administrator Jobs

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System Administrator
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Seeking a **System Administrator** in **Central Maryland** to join an **MFA Help Desk** team managing RSA, SIPR, and NIPR tokens. Requires 3+ years of experience, a relevant Bachelor’s degree (or 7 years total), and an **active Security Clearance with Polygraph**. Responsibilities include Tier 1/...
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United States , Central Maryland
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96000.00 - 135000.00 USD / Year
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RealmOne
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System Administrator 1
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Seeking a **System Administrator 1** in Central Maryland to manage IT infrastructure, including UNIX, Linux, and Windows systems. This role requires Tier 1/2 support, ITSM experience, and ServiceNow proficiency. Candidates need a Bachelor’s degree (or equivalent experience), IAT Level II certific...
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United States , Central Maryland
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125000.00 - 175000.00 USD / Year
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RealmOne
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Senior System Administrator
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Senior System Administrator needed in Annapolis Junction, MD to support a government customer. Requires 15+ years of experience, expertise in Windows Server, Active Directory, Linux, and Broadcom VMware/ESXi. Key duties include system hardening, security compliance (Nessus/ACAS), and RMF. Must ho...
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United States , Annapolis Junction
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2HB
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Systems Administrator
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We are building a pipeline for experienced Systems Administrators for contract roles in Rock Hill, Charlotte, and remote. Ideal candidates have 4+ years managing Windows Server, Active Directory, M365, and virtualization (Hyper-V/VMware). Azure and PowerShell scripting skills are highly valued. E...
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United States , Rock Hill
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Robert Half
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Systems Administrator
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We are seeking a Systems Administrator to bridge traditional IT and modern CloudOps in Annapolis Junction. This role demands strong Linux (RHEL/AL2023) and AWS expertise, plus direct experience configuring Apache NiFi for complex data flows. You will manage cloud infrastructure, automate tasks wi...
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United States , Annapolis Junction
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2HB
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Systems Administrator
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We are seeking a Systems Administrator in Port Chester, NY, to manage Microsoft-based infrastructure, including Active Directory, Windows Server, and VMware. This role combines hands-on end-user support, vendor coordination, and IT project execution. Ideal candidates bring expertise in Citrix, De...
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United States , Port Chester
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Robert Half
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Systems Administrator
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We are seeking a skilled Systems Administrator for a contract role in New York, NY. You will manage Active Directory, Windows Server, and Windows 10, while supporting Dell Technologies and Citrix environments. This position demands expertise in system performance, IT security, and compliance. Enj...
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United States , New York
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Robert Half
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Sr. System Administrator (Data Centers)
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Join our team as a Senior System Administrator for Data Centers in Vancouver. You will own our global hardware and cloud infrastructure, focusing on reliability, scalability, and automation. This senior role requires 5+ years of Linux, data center deployment, and hybrid cloud expertise. We offer ...
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Canada , Vancouver
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118500.00 - 150000.00 CAD / Year
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Dialpad
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Senior Systems Administrator
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United States , Aurora
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Riverstone Enterprise Solutions
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Systems Administrator III
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United States , Huntsville
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75094.23 - 180450.32 USD / Year
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Arcfield
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Senior GRC Systems Administrator
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Lithuania , Vilnius
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Alter Domus
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Junior Linux Systems Administrator
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United States , Aberdeen Proving Ground
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80000.00 - 90000.00 USD / Year
VES
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Journeyman Linux System Administrator
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USA , Wright-Patterson AFB
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Columbia Technology Partners
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System Administrator 2
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United States , Annapolis Junction
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Columbia Technology Partners
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System Administrator II
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Seeking a **System Administrator II** in **Rapid City** to install, configure, and troubleshoot Windows systems. Requires an active **Top-Secret Clearance** with SCI eligibility, **CompTIA Security+ CE**, and 2-4 years of IT experience. Key duties include help desk support, server administration,...
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United States , Rapid City
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86000.00 - 90000.00 USD / Year
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Amentum
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Billing & CPQ System Administrator
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We are seeking a Zuora Billing & CPQ System Administrator to own and optimize our Salesforce–Zuora ecosystem in Tunis. This role requires expertise in Apex, Visualforce, SOQL, and subscription billing platforms to maintain quoting, pricing, and approval workflows. You will collaborate with Financ...
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Tunisia , Tunis
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Medius
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Chris21 Systems Administrator
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Australia , Eight Mile Plains
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Randstad
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Systems Administrator IV
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United States , Crane
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Barbaricum
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System Administrator
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Seeking a skilled **System Administrator** for an on-site role in **West Bend, Wisconsin**. You will manage **Microsoft Entra ID (Azure AD)**, **Active Directory**, and **Windows 11** endpoints using **Intune**. Key duties include network monitoring with **Pulseway**, endpoint security via **Crow...
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United States , West Bend
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Robert Half
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Systems Administrator
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United States , Elizabethtown
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Robert Half
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About the IT System Administrator role

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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