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Systems Administrator United States Jobs

311 Job Offers

C++ Software Developer & Linux Systems Administrator
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We are seeking a versatile C++ Software Developer & Linux Systems Administrator to join our team in Pittsburgh. You will design high-performance C++ applications for factory automation robots while managing Ubuntu Linux infrastructure and network security. The role requires expertise in Git, CI/C...
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United States , Pittsburgh
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Not provided
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Capsen Robotics
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Systems Administrator III/IV
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Join NASA’s deep space exploration team as a Systems Administrator III/IV in Houston. You’ll manage multi-server environments, Active Directory, and Linux/Windows systems while ensuring security and virtualization performance. Requires 10+ years of experience and expertise in Windows Server, Linu...
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United States , Houston
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97600.00 USD / Year
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Amentum
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Systems Administrator
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We are seeking an experienced Systems Administrator for a long-term contract in Houston, Texas. You will maintain core IT infrastructure, including Active Directory, Windows Server, and Citrix environments. The role requires hands-on expertise with Dell hardware and Windows 10 support. Enjoy a co...
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United States , Houston
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Not provided
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Robert Half
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Systems Administrator
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We are seeking a Systems Administrator to optimize a benefits administration platform in Plymouth Meeting, PA. This role ensures reliable eligibility, enrollment, and premium billing processes while managing data exchanges with healthcare partners. Ideal candidates have experience with benefits s...
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United States , Plymouth Meeting
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Not provided
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Robert Half
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Systems Administrator
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We are seeking a skilled Systems Administrator in Charlotte, NC, to manage Windows Server, Active Directory, and Microsoft 365 environments. You will ensure infrastructure uptime, troubleshoot complex issues, and support virtualization platforms like VMware or Hyper-V. Ideal candidates bring 3+ y...
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United States , Charlotte
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Not provided
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Robert Half
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Systems Administrator
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Seeking an experienced **Systems Administrator** for a long-term contract in **Plattsburgh, NY**. You will support enterprise infrastructure across on-site and cloud environments, including **Active Directory**, **VMware**, and **Azure**. Ideal candidates have 3+ years of experience with **Window...
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United States , Plattsburgh
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Robert Half
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Microsoft Systems Administrator
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Seeking a **Microsoft Systems Administrator** in **Alexandria, VA** to lead enterprise infrastructure. Requires 7+ years’ experience, a Bachelor’s degree, and ability to obtain a **Public Trust clearance**. Key skills include **Windows Server, Azure, Active Directory, Intune, and SCCM**. Ideal ca...
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United States , Alexandria
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Not provided
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Sparibis
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Linux Systems Administrator
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Join our team in Mt. Pleasant, SC as a **Linux Systems Administrator**—a contract role with permanent potential. Ideal for early to mid-level talent, you’ll support Red Hat environments, automate tasks with Bash/Python, and maintain on-premises infrastructure. Work fully onsite with a collaborati...
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United States , Mount Pleasant
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Not provided
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Robert Half
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Senior Systems Administrator
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Senior Systems Administrator needed in Montgomery, AL to support AFLCMC/GBQ’s Agile Support Office. You will provide expert-level administration for Network, Web, and communication systems, optimizing technical baselines across BES programs. Requires a Master’s with 10 years (5 in DoD) or equival...
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United States , Montgomery
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Not provided
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Astrion
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Learning Systems Administrator
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We are seeking an experienced Learning Systems Administrator to own and optimize an enterprise LMS in Minneapolis. This hands-on role requires 3+ years administering platforms like Cornerstone or Workday Learning, with expertise in backend configuration, integrations, and governance. You will ens...
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United States , Minneapolis
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Not provided
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Robert Half
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Systems Administrator
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Seeking a Systems Administrator in Miami, FL, to support a mission-driven non-profit. This role requires expertise in Microsoft Windows Server, Active Directory, and scripting for automation. You will ensure system stability, data quality, and provide actionable insights. Enjoy a comprehensive be...
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United States of America , Miami
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Robert Half
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Systems Administrator
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Robert Half seeks a Systems Administrator for a gaming client in Bellevue, WA. You will lead endpoint, server, and patch management across Linux, Windows, and macOS using Intune and Jamf. This role requires expertise in Microsoft 365, Mimecast, and vulnerability remediation. Enjoy top benefits in...
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United States , Bellevue
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Not provided
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Robert Half
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Systems Administrator
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Seeking a skilled Systems Administrator in St. Louis to ensure system reliability, security, and performance. You will manage Windows/Linux servers, cloud platforms, and virtualization while troubleshooting issues and overseeing backups. Requires a Bachelor's in IT/CS, solid admin experience, and...
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United States , St. Louis
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Not provided
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Robert Half
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Linux Systems Administrator
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We are seeking an experienced Linux Systems Administrator to ensure stable, secure, and scalable infrastructure in Phoenix, Arizona. This role focuses on Linux administration, Kubernetes operations, and automation using Bash, Python, Ansible, or Terraform. Ideal candidates bring 3+ years of produ...
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United States , Phoenix
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Not provided
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Robert Half
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Systems Administrator
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Seeking an experienced **Systems Administrator** for a long-term contract in **Tallahassee, FL**. You will manage **Windows Server**, **Microsoft 365**, and **AWS** environments, ensuring platform reliability and security. Ideal candidates have 3-5 years of IT experience with multi-cloud solution...
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United States , Tallahassee
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Robert Half
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Systems Administrator (SQL and Oracle)
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Seeking an experienced Systems Administrator in Houston to manage SQL and Oracle databases within Windows environments. This role requires 5-7 years of expertise in server administration, cloud platforms (Azure, AWS), and financial applications. You will install software, monitor system health, p...
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United States , Houston
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Robert Half
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Systems Administrator
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We are seeking a Systems Administrator with an Active Secret Clearance and 8+ years of Linux experience to manage secure, classified IT systems in Lexington. You will configure RedHat Enterprise Linux, VMware, and Dell hardware while ensuring compliance with STIGs and RMF. Key skills include Ansi...
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United States , Lexington
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Not provided
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Aquila Technology
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Learning Systems Administrator
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Seeking an experienced Learning Systems Administrator to own and optimize an enterprise LMS in Minneapolis. This hands-on role requires 3+ years administering platforms like Cornerstone or Workday Learning, with expertise in backend configuration, integrations, and governance. You will ensure sys...
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United States , Minneapolis
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Not provided
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Robert Half
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Financial Systems Analyst / Blackline Systems Administrator
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Own BlackLine enterprise-wide as a Financial Systems Analyst in Des Moines. Drive automation, reconciliations, and close performance with high executive visibility. Requires hands-on BlackLine or ARCS/Trintech experience and strong finance skills. Competitive base, bonus, equity, and relocation a...
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United States , Des Moines
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Salary
90000.00 - 120000.00 USD / Year
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Robert Half
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Systems Administrator
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Systems Administrator needed in Austin, TX for a contract-to-hire role blending desktop support, Windows Server, and Microsoft 365 administration. You’ll manage Active Directory, VMware vSphere, and endpoint setups while supporting cybersecurity initiatives. Ideal for candidates with 2+ years in ...
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United States , Austin
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Not provided
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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.