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Systems Administrator United States Jobs (On-site work)

114 Job Offers

Systems Administrator
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Seeking a skilled **Systems Administrator** in **Westford, MA** to support critical defense research for a leading organization. You will manage upgrades, maintenance, and operations of advanced radar systems like HUSIR. Requires an **Active Secret Clearance**, 5+ years of Systems Administration ...
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Aquila Technology
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Systems Administrator
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Aquila Technology seeks a Systems Administrator to support a leading defense research organization in Lexington. This role requires an Active Secret Clearance, Security+ certification, and expertise in Windows/Linux administration, scripting (Python, Perl, Shell), and virtualization (VMware). You...
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Aquila Technology
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Systems Administrator
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Seeking an experienced Systems Administrator for a long-term contract in New Braunfels, Texas. You will maintain core Microsoft infrastructure, manage Active Directory, support Windows 10/Server, and handle Dell hardware. Ideal candidates have Citrix and virtualization expertise. Enjoy medical, d...
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Robert Half
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Systems Administrator
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Seeking an experienced Systems Administrator in Mankato, MN to lead infrastructure initiatives and provide advanced technical support. Requires 5+ years of hands-on experience with Windows Server, Active Directory, Cisco networking, Citrix, and VMware/Hyper-V. Responsibilities include system upgr...
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Robert Half
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Senior Systems Administrator / Infrastructure Engineer
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Senior Systems Administrator / Infrastructure Engineer needed in Birmingham, AL. Leverage 5+ years of VMware and Windows Server expertise to ensure enterprise infrastructure stability and performance. This role focuses on virtualization, disaster recovery, and providing white-glove support. Enjoy...
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Robert Half
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Senior Systems Analyst III - Snowflake Administrator
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Senior Systems Analyst III / Snowflake Administrator needed for a major enterprise data modernization initiative with Texas HHSC in Austin, TX. This role requires 8+ years administering Snowflake, expertise in RBAC, SSO (Okta/SailPoint), and Snowflake Cortex AI. You will optimize secure, scalable...
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86.66 USD / Hour
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MMC Group LP
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Endpoint Systems Administrator
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Endpoint Systems Administrator needed in Vienna, VA for on-site UEM support. Manage Workspace One, Intune, and Jamf environments, focusing on MDM/MAM, device compliance, and automation via PowerShell. Ideal for candidates with 3-5 years of endpoint administration experience and strong troubleshoo...
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AAC
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Systems Administrator
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Seeking a skilled Systems Administrator in Delray Beach, FL to manage Windows/Linux servers, Active Directory, and VMware/Hyper-V. Ideal candidates have 3-5 years of experience with scripting (PowerShell, Bash), backup solutions (Veeam), and monitoring tools. Enjoy benefits like medical, 401(k), ...
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Robert Half
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Systems Administrator
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Seeking an experienced **Systems Administrator** in **Columbia, MD** to support critical IT systems. Requires 5-15+ years of Linux SA experience, a technical Bachelor’s degree (or equivalent), and IAT Level 2 certification. Cloud technology background is preferred. Enjoy top-tier benefits includi...
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113000.00 - 245000.00 USD / Year
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RealmOne
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Systems Administrator
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Medfield seeks a security-minded Systems Administrator to manage and optimize digital infrastructure across municipal and K-12 environments. This shared role requires expertise in Google Workspace, Active Directory, and Mobile Device Management. You will support town departments, public safety, a...
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90000.00 - 100000.00 USD / Year
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Massachusetts Municipal Association
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Senior Systems Administrator
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Senior Systems Administrator needed in Phoenix to oversee mission-critical IT systems, including servers, virtualization, and cloud technologies. Requires 5+ years of progressive experience, an Associate’s degree, and a valid Arizona Driver’s License. Key duties include managing Active Directory,...
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Robert Half
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Systems Administrator
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Seeking a Senior Linux Systems Administrator for a critical role at Fort Meade. You will manage, secure, and harden physical/virtual Linux systems, leveraging automation tools like Ansible and containerization. Requires a TS/SCI clearance with polygraph and deep expertise in system provisioning, ...
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77600.00 - 176000.00 USD / Year
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Booz Allen Hamilton
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Junior Systems Administrator
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Seeking a Junior Systems Administrator in Oklahoma City for a contract-to-permanent role. Support end users by troubleshooting hardware, software, and Windows 10 issues. Requires Active Directory, Windows Server, and Citrix exposure. Enjoy medical, dental, vision, and 401(k) benefits while advanc...
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Robert Half
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Labs Systems Administrator
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Seeking a **Labs Systems Administrator** in Ridgecrest, CA to support F/A-18 & EA-18G programs. Requires a Secret Clearance, U.S. Citizenship, and 5+ years of experience with Windows Server and DoD computing. You will install, troubleshoot, and secure networked systems while providing front-facin...
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70310.00 - 90000.00 USD / Year
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DCS Corporation
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Systems Administrator
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Seeking an experienced Systems Administrator for a long-term contract supporting a university environment in New Concord, Ohio. You will ensure reliable infrastructure across network, server, desktop, and voice systems. Requires 5+ years of experience with Active Directory, Windows Server, Dell h...
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Robert Half
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Systems Administrator
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We are seeking a Systems Administrator to provide Yardi support for property management teams in Orange, CA. This role combines technical troubleshooting with a strong service mindset, requiring experience in multifamily environments and hands-on Yardi familiarity. You will diagnose system issues...
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Robert Half
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Contract Systems Administrator
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Seeking a skilled Contract Systems Administrator in Nashville for a reputable company. You will manage Windows Server, Linux, and network infrastructure, ensuring security and stability. Ideal candidates have proven system admin experience, troubleshooting skills, and relevant certifications. Enj...
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Robert Half
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Systems Administrator
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We are seeking a proactive Systems Administrator to optimize and secure our IT infrastructure in St. Louis, MO. You will manage servers, cloud platforms, and user access while ensuring system reliability and performance. Ideal candidates bring expertise in Windows/Linux, networking, and virtualiz...
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Robert Half
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Systems Administrator
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We are seeking a Systems Administrator with strong Microsoft Azure experience to manage hybrid cloud and on-premises infrastructure. This role focuses on administering Azure IaaS/PaaS, Windows Server, Active Directory, and networking while driving security, performance, and cloud migrations. Idea...
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Robert Half
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Systems Administrator
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We are seeking a Systems Administrator to manage Microsoft 365 and Exchange Online in Brentwood, TN. You will provide Tier 2/3 support, administer mail flow, and automate tasks using PowerShell. Ideal candidates have 2+ years of enterprise M365 experience and Active Directory knowledge. Enjoy med...
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Robert Half
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About the Systems Administrator role

Explore a world of opportunity in Systems Administrator jobs, the backbone of modern IT infrastructure. Systems Administrators are the essential professionals responsible for installing, configuring, maintaining, and securing the critical computer systems that organizations rely on daily. This dynamic profession sits at the intersection of technology and operations, ensuring network services, servers, and data remain available, performant, and protected. Whether managing on-premises data centers, cloud environments, or hybrid systems, these experts are the troubleshooters and guardians of an organization's digital ecosystem.

The core responsibilities of a Systems Administrator are vast and vital. Typically, they involve the deployment and maintenance of server hardware and operating systems, such as Windows Server or various Linux distributions. Daily tasks include monitoring system performance, applying security patches and software updates, and managing user accounts and access permissions. A significant part of the role is ensuring robust backup procedures and disaster recovery plans are in place and tested to guarantee business continuity. Furthermore, Systems Administrators configure and manage essential network services like DNS, DHCP, email, and file sharing. They provide crucial technical support, resolving complex issues that end-users or automated alerts may escalate, and meticulously document system configurations and procedures for consistency and knowledge sharing.

The skill set required for Systems Administrator jobs is both technical and interpersonal. A strong foundational knowledge of operating systems, networking concepts (TCP/IP, routing, firewalls), and virtualization platforms (like VMware or Hyper-V) is paramount. Proficiency in scripting languages such as PowerShell, Bash, or Python is highly valued for automating repetitive tasks and improving efficiency. As security is paramount, understanding cybersecurity principles, implementing security policies, and conducting vulnerability assessments are standard expectations. Beyond technical prowess, successful Systems Administrators possess exceptional problem-solving and analytical abilities to diagnose and resolve issues under pressure. Clear communication skills are essential for collaborating with IT teams, explaining technical concepts to non-technical stakeholders, and creating clear documentation.

Typical requirements for entering this field often include a bachelor's degree in computer science, information technology, or a related field, though relevant experience and professional certifications can be equally compelling. Certifications from vendors like Microsoft (Azure, Windows Server), CompTIA (Security+, Network+), Red Hat (RHCSA), or Cisco (CCNA) are widely recognized and can significantly enhance a candidate's profile. Employers generally seek candidates with a proven track record of managing IT systems, a keen attention to detail, and a commitment to continuous learning in a rapidly evolving technological landscape. For those with a passion for problem-solving and a desire to ensure the seamless operation of critical technology, Systems Administrator jobs offer a challenging, rewarding, and stable career path with opportunities across every industry.