Top Systems Administrator Jobs

The UNIX/Linux Systems Administrator is responsible for installing, configuring, and maintaining Linux systems, ensuring data integrity, and managing software solutions, among other responsibilities in a Systems Administration team.

The GIS Administrator will manage GIS systems, provide support for ESRI software, perform server administration, and troubleshoot outages. Responsibilities include application deployment, system upgrades, and documentation preparation.

Administer and improve CAD, PDM/PLM, and engineering data systems (Creo, Windchill, DDM). Manage licenses, vendor contracts, system configurations, data integrity, ERP integrations, user support, training, and compliance with standards and export controls.

Maintain, configure, and administer enterprise databases (Epic IRIS/Caché). Troubleshoot database issues and performance bottlenecks, monitor environments, develop/implement integrity and security policies, and handle service-desk tickets and scheduling.

Maintain integrity and quality of enterprise database systems by ensuring security, performing backups, monitoring environments, troubleshooting access and performance issues, working with service desk tickets, and supporting database implementations with senior ODBA staff.

The IT Systems Administrator manages and optimizes the Workday Financials platform, ensuring system stability and compliance while enhancing business processes.

The IT Systems Administrator is responsible for supporting and maintaining IT infrastructure, resolving incidents, documenting systems, and ensuring compliance with cybersecurity standards.

The IT Systems Administrator will manage server and network infrastructures, support enterprise applications, ensure cybersecurity compliance, and provide end-user support while leading technology improvement projects.

Provide hands-on administration and support for servers, endpoints, identity services, backups, and core productivity platforms in a school environment. Monitor system health, respond to incidents, manage devices (Windows, macOS, ChromeOS, iPadOS), administer Active Directory and Google Workspace, maintain patching and security, support Microsoft 365 and Google Classroom, and coordinate vendors and disaster recovery activities.

Maintain and administer Red Hat Linux and Windows Server systems, supporting server farms and cloud environments (AWS). Perform system tuning, account and storage management (SAN/NAS), integrate NM/EM systems, apply DISA STIG security baselines, document procedures, coach junior staff, and provide M-F and on-call support with occasional travel. Track SLA/ALP metrics and support backups and recovery.

IT Systems Administrators implement and support the enterprise server infrastructure, managing OS, hardware, networking, and security. They provide support to the IT Service Desk and troubleshoot systems, ensuring compatibility and security standards.

As an IT Systems Administrator III, you'll manage system infrastructure, enforce security, troubleshoot technical issues, lead IT projects, and mentor junior staff, ensuring compliance and efficient operations.

The IT Systems Administrator will manage internal IT operations, handle onboarding, oversee SaaS tools, and support compliance efforts.

Administer IBM mainframe VTS, DASD, SAN, and storage replication environments supporting disaster recovery and failover. Monitor capacity, performance, availability, backups, and replication; troubleshoot incidents; configure storage; conduct recovery testing; maintain runbooks; coordinate with IBM and HPE vendors; and mentor junior staff in high-availability enterprise environments.

Provide senior Linux systems administration and engineering support in a Kubernetes-based Intelligence Community mission environment. Administer CentOS/RHEL systems, Kubernetes tooling, containers, and Bash-based workflows while supporting software productization. The role requires an active TS/SCI clearance with polygraph, Security+ certification, and at least 10 years of Linux administration or systems engineering experience. Desired qualifications include Red Hat certification, Python, Ansible, Salt, VMware, DevOps, classified networking, encryption, storage, authentication, and physical server administration experience.

Provide desktop and systems support across Mac, Windows, and Linux; administer cloud services (Office 365, Azure, Exchange), device management (JAMF, Intune), backups, and networks; onboard/offboard staff; manage assets/licenses; support videoconferencing and collaborate on IT procurement, security, and integration efforts.

Provide onsite systems and network administration: deploy and troubleshoot Windows desktops/laptops, manage VMware infrastructure (vCenter/ESXi/vSAN), maintain Active Directory/Azure AD/GPO, support backups (Nakivo), patch Windows/Linux, configure network switches and VLANs, and manage Intune and Bitdefender AV.

Mid-level Linux Systems Administrator role supporting an aerospace and defense client onsite in Virginia Beach, VA. Must be a U.S. citizen with an active Secret clearance and fully vaccinated for COVID-19. Experience with cloud service providers and Kubernetes is preferred.

Owner of company internal IT: provide employee IT support, manage devices/accounts and MDM, administer Google Workspace/M365 and identity, maintain office networks and AV, enforce security controls, build onboarding/offboarding and IT processes, document systems, and develop the IT roadmap and budget while supporting engineering and manufacturing environments.

Administer and maintain enterprise Linux environments supporting mission-critical testing and operational readiness. Responsibilities include system configuration, software installation, network component maintenance, Tier 1 incident troubleshooting, hardware support, Bash scripting, capacity analysis, monitoring, performance improvement, and customer communication. The role requires maintaining secure, stable, reliable, and repeatable Linux platforms for testing, validation, and deployment activities.

Maintains and supports enterprise IT systems, endpoints, mobile devices, operating system images, software deployment, patching, backups, virtualization, and cloud environments. Manages Intune, printers, security compliance, documentation, KPIs, escalated troubleshooting, and executive white-glove support. Provides on-call assistance, supports remote users, collaborates with cybersecurity, recommends technology improvements, and assists with IT projects. The role requires on-site support in Kirkland or Everett and flexible scheduling.

Maintains and upgrades enterprise IT systems, endpoints, mobile devices, operating system images, virtual desktops, printers, and software. Provides escalated hardware and software troubleshooting, executive white-glove support, documentation, KPI reporting, security and compliance assistance, and backup management. The role supports Windows and Mac environments, manages Intune and Autopilot, collaborates with cybersecurity teams, and participates in a rotating 24/7 on-call schedule with onsite support in Everett or Kirkland.

Maintains and integrates expeditionary tactical systems supporting Navy operations and AI capabilities. Responsibilities include building systems with radios, satellite terminals, and edge servers; troubleshooting networks; updating Linux systems; testing software and machine-learning capabilities; monitoring tactical data pipelines; integrating sensors, unmanned systems, C2, and TAK; and delivering hardware and software to operational forces. The role is fully onsite in San Diego, requires an active Secret clearance, and includes 15% domestic and international travel.

Administer enterprise security technologies, cloud and infrastructure platforms, Linux systems, networks, identity controls, and endpoint deployments. Monitor and respond to incidents, manage vulnerabilities, maintain secure configurations, and support CMMC compliance. Troubleshoot complex infrastructure issues, document technical evidence, and collaborate with IT teams on cybersecurity, reliability, risk mitigation, and continuous improvement.

Administer and maintain the school's network, servers, endpoints, MDM, and cloud identity services. Troubleshoot infrastructure and classroom technology, support AV and printers, assist with cybersecurity, backups, disaster recovery, and participate in technology projects and planning.