Top Systems Administrator Jobs

Support senior administrators in maintaining Linux and Windows systems in various environments. This role includes configuring storage, managing Active Directory, and script automation.

Support and administer enterprise systems and collaboration platforms, manage remote access solutions, troubleshoot user issues, and contribute to projects.

Provide end-to-end IT support for the F-22 program in closed/classified environments: install, configure, secure, and maintain servers, workstations, AD domains, VMware VMs, and cloud resources; perform troubleshooting, patching, backups, access administration, performance monitoring, and compliance to RMF/JSIG; coordinate with cybersecurity and IT stakeholders and support audits.

Provide system administration and support for mission-critical platforms on a shift schedule. Monitor and troubleshoot system performance, maintain documentation, implement configuration changes, interface with customers during operations, and apply security and infrastructure best practices. Work may include virtualization, VDI, and cloud or on-prem environments under tight deadlines.

The role involves supporting senior administrators in managing Linux and Windows operating systems, configuring storage and networking, and automating processes using PowerShell. Requires maintaining security compliance and providing after-hours support.

Manage and secure classified IT infrastructure in closed areas, including Active Directory administration, desktop and Windows endpoint support, VMware virtualization, patching and STIG compliance. Collaborate with ISSOs for RMF/NIST/JSIG adherence, maintain documentation and support accreditation, audits, logging, and incident response.

Senior Systems Administrator responsible for ServiceNow management, incident troubleshooting and escalation, server infrastructure deployment and maintenance, IT security compliance, documentation, project leadership, stakeholder and vendor coordination, and serving on weekly on-call rotation for the Merrimack production environment.

Own and operate Relativity's Linux and Windows infrastructure supporting manufacturing and engineering. Deploy, configure, automate, and maintain production systems on-prem and in cloud (Azure/GCP). Support AD, DNS, DHCP, enterprise backups (Veeam/Commvault/Rubrik), ensure uptime and AS9100 compliance, troubleshoot network/system boundaries, mentor junior admins, and collaborate with senior engineers to operationalize designs and automate administration.

The Red Switch Systems Administrator will maintain secure telecommunications systems, troubleshoot communication issues, manage work orders, and ensure compliance with standards for a government agency.

Administer and maintain Siemens Teamcenter and PLM environments, perform upgrades/patching, monitor performance, troubleshoot incidents, manage environment refreshes and deployments, support integrations with ERP/MES and CAD tools, provide user support/training/documentation, collaborate with infrastructure and vendors to improve PLM capabilities.

Designs, implements, and manages lab and classified IT infrastructure: Windows/Linux servers, VMware vSphere, NetApp storage, Exchange, WSUS, backups, PXE/WDS imaging, shell scripting, and RMF/audit documentation while collaborating with security stakeholders.

Install, configure, secure, and maintain Windows servers and desktops in closed/classified environments. Support VMware ESX, basic networking, hardware/software deployment, AD/group policies, security tool integration, audits, and inventory/shipping for Air Dominance program infrastructure.

Install, configure, secure, and maintain Windows servers, desktops, and VMware virtual environments in closed/controlled networks. Provide hardware/software installation, basic networking, inventory and shipping, system restoration, security support (including audits), and documentation to support Air Dominance program infrastructure.

Provide first- and second-line IT support for plant and office users: user account management, desktop/laptop repair, imaging, printer and shop-floor peripheral support, basic server/storage and network troubleshooting, documentation, and simple automation scripting (PowerShell/Bash). Escalate complex issues to senior IT staff and coordinate with vendors/contractors.

As a Systems Administrator, you will manage classified IT systems, ensuring security compliance, desktop support, and server management while maintaining documentation and collaborating with security staff.

Provide day-to-day enterprise end-user IT support and systems administration across Windows, macOS, and Linux. Deliver white-glove executive and meeting-support, manage user accounts via AD/Azure AD, maintain endpoint security and asset lifecycle, respond to incidents, document procedures, and collaborate with infrastructure, network, and security teams. Participate in on-call and occasional after-hours maintenance.

Provide on-site and remote IT support for global offices: troubleshoot hardware/software, manage assets and server rooms, deploy OS/software (SCCM/Jamf), maintain knowledge bases, support events/AV/devkits, automate processes, and assist onboarding and executive white-glove support.

Maintain and support Windows and RHEL systems, VMware/virtualized environments, servers, storage, networking, and TMPC software in a classified development/integration test environment. Perform cybersecurity tasks to maintain compliance with DoD/BAE information security requirements; provide on-site hardware support, after-hours incident response, and occasional CONUS/OCONUS travel for installs and testing.

The Systems Administrator will support government missions by ensuring system operations, configurations, maintenance, and leading security protocols.

Administer, configure, maintain, and support MBSE and requirements management platforms (Cameo, IBM DOORS). Serve as technical owner for application health, security, performance, upgrades, integrations, user support, documentation, process improvements, and vendor coordination while working with engineering, IT, cybersecurity, and development teams.

The Principal Systems Administrator provides operational support for IT systems, focusing on maintenance, security, and troubleshooting of Windows and Linux environments. Responsibilities include system monitoring, root cause analysis, and technical guidance while collaborating with team members and stakeholders.

Owner of day-to-day administration and support of NetSuite and adjacent finance systems. Manage configurations, integrations, master data, SOX controls, incident triage, UAT, releases, and automation projects to improve finance processes and system reliability across a global multi-subsidiary environment.

The IT Systems Administrator II manages IT systems in classified environments, focusing on user account administration, desktop and virtual server support, security compliance, and system documentation.

Senior IT Systems Administrator providing escalated technical support and incident management for global internal users. Mentor service desk staff, manage endpoints via SCCM, Jamf, and Workspace ONE, and improve IT processes, policies, and application usability. Troubleshoot Mac, Windows, and Linux systems, coordinate cross-functional resolution, and support office-based technology needs as required.

The Principal IT Systems Administrator oversees IT systems, leading complex initiatives, managing infrastructures and endpoints, enhancing security compliance, and ensuring incident management and documentation standards are met.