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Systems Administrator United States Jobs

311 Job Offers

Systems & Network Administrator
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Join our Dallas team as a Systems & Network Administrator. This hands-on contract role requires M365 Admin Portal & Azure expertise for network management, user support, and system maintenance across a large campus. You will ensure seamless IT operations, provide excellent help desk support, and ...
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United States , Dallas
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Robert Half
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Systems Administrator
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Join our IT Ops team in Falls Church as a Systems Administrator supporting a critical 24/7/365 environment. This role requires an active DoD SECRET clearance, IAT Level II certification, and expertise in Windows Server, Active Directory, Linux, and Cisco systems. We offer competitive benefits inc...
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United States , Falls Church
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66000.00 - 68000.00 USD / Year
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Innovative Management Concept
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Systems Administrator
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Join our team in Boston as a Systems Administrator on a long-term contract. You will manage Microsoft 365, Active Directory, VMware, and network infrastructure. The role requires expertise in Windows Server, Dell hardware, and Citrix. We offer comprehensive benefits including medical, dental, vis...
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United States , Boston
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Robert Half
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Systems Administrator
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Seeking a Senior Systems Administrator in Austin to manage critical Windows Server infrastructure. You'll handle AD, Azure, security hardening, and automation using PowerShell. This role offers competitive healthcare, 401(k), and commuter benefits for a skilled, independent professional.
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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 as a Systems Administrator in Newberg. You will administer Windows Server, manage Azure infrastructure, and support Entra ID. This mid-level role focuses on system stability, maintenance, and troubleshooting. We offer comprehensive benefits including medical, dental, vision, and a 4...
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United States , Newberg
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Robert Half
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Senior Systems and Network Administrator
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Lead major cloud and infrastructure modernization in Providence. This senior role requires deep expertise in Windows Server, Active Directory, networking (Cisco/Meraki), and Azure migration. You will own projects end-to-end, partnering with an MSP during transition. We offer full benefits includi...
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United States , Providence
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Robert Half
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Systems Administrator
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Join our growing systems & software engineering team in Dahlgren, VA. Apply your 10+ years of technical expertise in system administration, security, and network management to modernize Navy weapons and sensor systems. This on-site role requires IAT Level 2 certification and offers the chance to ...
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United States , Dahlgren
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Amentum
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Cyber Systems Administrator
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BlueWater Federal seeks a Cyber Systems Administrator in Colorado Springs to support the SEWS program. This role requires an active Secret clearance, Security+, and expertise in Windows/Linux administration, CND tools, and Active Directory. The position offers comprehensive benefits including med...
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United States , Colorado Springs
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110000.00 - 120000.00 USD / Year
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BlueWater Federal Solutions
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Senior Systems Administrator
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GovCIO seeks a Senior Systems Administrator with an active Secret clearance for a hybrid role in Arlington, VA. Manage large-scale Windows/Linux environments, VMware, and AWS/Azure cloud infrastructure. This role includes on-call support and offers a flexible work environment with strong benefits...
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United States , Arlington
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115000.00 - 135000.00 USD / Year
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GovCIO
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HR Systems Administrator
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Seeking an experienced HR Systems Administrator in Richardson to manage and scale our ADP HRIS platform. You will ensure payroll accuracy, optimize workflows, and support system integrations. This hands-on role requires ADP expertise, strong analytical skills, and collaboration with HR and Financ...
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United States , Richardson
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Associa
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Systems Administrator
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Seeking a Systems Administrator in Honolulu to manage VDI Thin Client networks across classified and non-classified environments. This role requires a Top Secret clearance, expertise in VMware, Windows Server, and STIG compliance. We offer competitive benefits including a 401(k) match and compreh...
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United States , Honolulu
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80000.00 - 85000.00 USD / Year
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Innovative Management Concept
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Systems Administrator
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United States , Fort Lauderdale
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Robert Half
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Systems Administrator
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United States , Saint Louis
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Robert Half
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Linux / Unix Systems Administrator
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United States , Duluth
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Robert Half
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Systems Administrator
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United States , Miami
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Robert Half
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Windows Systems Administrator
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Seeking a Windows Systems Administrator in Bedford, USA, requiring Secret clearance and Security+ certification. You will manage Windows systems, Active Directory, and perform scripting in PowerShell and SQL. This role offers comprehensive benefits including medical, 401k, and PTO.
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United States , Bedford
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120000.00 - 140000.00 USD / Year
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Piper Companies
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Systems Administrator
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Join our team in Newburyport, MA, as a Systems Administrator. You will manage Active Directory, Azure, Windows Server, and Citrix systems while ensuring network security with Cisco ASA. This role requires 3+ years of experience and offers a full benefits package including medical, dental, and 401...
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United States , Newburyport
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Robert Half
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Z/OS Systems Administrator
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Seeking an experienced z/OS Systems Administrator to support enterprise IBM mainframe hardware in a high-availability Parallel Sysplex environment. Your core expertise will be in HCD, IOCDS management, and I/O configuration for complex IBM Z systems. This U.S.-based role offers a competitive comp...
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United States
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49.50 - 74.75 USD / Hour
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ClearBridge Technology Group
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Delivery Systems Administrator
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Seeking a Delivery Systems Administrator in Newton, USA. You will manage the roadmap and daily operations for Agile tools like Microsoft ADO and Jira. This role requires 3+ years in Agile environments and Azure DevOps administration. We offer full benefits, including medical insurance, 401(k), an...
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United States of America , Newton
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90000.00 - 100000.00 USD / Year
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Bright Horizons
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Systems Administrator
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Join our team in San Antonio as a Systems Administrator. This role requires 5+ years of experience managing Windows Server, Azure, and VMware environments. You will ensure system security, performance, and automation using PowerShell/Python. We offer comprehensive medical, dental, vision, and 401...
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United States , San Antonio
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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.