Top Systems Administrator Jobs

The GxP Laboratory Systems Administrator supports and manages laboratory systems within GxP environments, ensuring compliance and system functionality across various departments. Responsibilities include application administration, issue resolution, documentation for audits, and collaboration with internal teams and external partners.

Provide hands-on IT support and systems administration across endpoints, identity, network infrastructure, collaboration tools, cloud services, and internal apps. Maintain security, compliance, imaging/patching, monitoring, and documentation to support engineering, manufacturing, and business teams in a regulated, government-facing environment.

The Systems Administrator will manage systems in Windows and Linux environments, configure cloud infrastructures, and ensure compliance with security standards.

Hands-on systems administrator responsible for availability, stability and readiness of MQ-4C Triton mission systems at RAAF Base Tindal. Duties include system start/shutdown, troubleshooting end-to-end, managing user accounts and security in a PV environment, maintaining Windows, VMware and networked systems, backups/recovery, and driving reliability improvements.

Administer and secure network systems (workstations, file and web servers), install/configure hardware and software, monitor performance and security, enforce IT policies and Cyber WorkForce compliance, train users, and support DoD standard adherence for mission-critical Army programs.

Designs, implements, and supports enterprise Microsoft 365 environments. Leads architecture for Exchange, SharePoint, Teams, OneDrive, and Entra ID; manages tenant operations, identity/access, security/compliance, migrations, integrations, automation (PowerShell/Graph), governance, incident escalation, and technical documentation.

Maintain and administer Linux, Windows, and VMware environments; perform builds, configurations, patches, backups, disaster recovery, and security/compliance work. Troubleshoot user/server issues, implement security measures and business continuity, lead projects, and provide technical support and documentation in a hybrid research computing environment.

Maintain and secure Windows server and workstation environments, administer LAN and networking hardware, manage document/configuration management systems, design/maintain web pages, track hardware inventories, perform system upgrades, and support cybersecurity posture and operational readiness under minimal supervision.

Provide Tier II enterprise technical support for desktop, network, hardware, software, and cloud issues. Troubleshoot and resolve complex problems remotely across global sites, document incidents in ticketing systems, assist with maintenance and upgrades, mentor junior technicians, and maintain compliance with security procedures and policies. Active TS/SCI with full-scope polygraph required.

Provide technical support and troubleshooting for network, desktop, and systems hardware/software; deliver remote support using desktop mirroring and remote access tools; identify, investigate, resolve, and follow up on cloud infrastructure and helpdesk issues; coach and guide less-experienced staff.

Lead operations and technical team supporting a DoD enterprise Military Housing system: administer SAP BusinessObjects, monitoring (Dynatrace), Splunk, F5, virtualization/storage, backups, Oracle patching, STIG/ACAS remediation, certificate lifecycle, reporting, procurement tracking, and manage maintenance windows and DR exercises.

Lead technical administrator for Epic health system applications. Plans, implements, and supports Epic Windows Server infrastructure and Epic services (Hyperspace, Interconnect, Haiku, Rover, Care Everywhere, etc.), ensures redundancy and disaster recovery, mentors staff, develops documentation, and consults on complex cross-department integrations and major projects.

Administer and secure enterprise virtual server environments across multiple networks and enclaves. Maintain VMware, vCenter, Hyper-V, virtual machines, templates, clusters, and hypervisor configurations. Perform monitoring, troubleshooting, patching, vulnerability remediation, baseline management, certificate lifecycle management, and STIG/ATO compliance activities. Support Windows and Linux systems, optimize performance, and assist with designing and deploying new virtual infrastructures.

Maintain, configure, and secure enterprise and air-gapped systems onsite. Provide Tier II support, install and patch servers and desktops, manage virtual machines, administer Red Hat Linux, monitor systems, document procedures, escalate issues, and ensure compliance with DoD security standards and organizational policies.

Administer and enhance PMWeb across capital projects, including configuring modules, workflows, permissions, and project structures. Resolve help desk requests, support end users, conduct system audits, and assist with integrations, upgrades, testing, data migration, and process improvements. The role also involves requirements gathering, documentation, training materials, user onboarding, change management, and collaboration with project controls, IT teams, vendors, and stakeholders.

Administer Windows servers, workstations, Active Directory, VMware virtualization, networking, backups, security, and infrastructure systems for approximately 800 users. Troubleshoot hardware, software, connectivity, and end-user issues; manage accounts and permissions; monitor system health; document procedures; enforce IT standards; support infrastructure improvements; and help train future team members while developing toward leadership responsibilities.

Administer Windows servers, workstations, Active Directory, VMware virtualization, networking, backups, security, and infrastructure systems for approximately 800 users. Troubleshoot hardware, software, connectivity, and end-user issues; manage accounts and permissions; monitor infrastructure health; document systems; enforce IT standards; and support infrastructure improvements. The role is hands-on, with opportunities to mentor team members and develop toward broader leadership responsibilities.

The VMware Systems Administrator manages physical and virtual infrastructures, troubleshooting technical issues, maintaining system backups, and providing user support within a classified environment.

Provide systems administration for geographically distributed, air-gapped environments. Install and maintain applications, servers, desktops, storage, and network infrastructure; manage Active Directory, patching, certificates, vulnerability assessments, backups, virtualization, and security controls. Troubleshoot hardware and software issues, optimize performance, document complex environments, resolve outages, and support users, developers, testers, engineers, and external personnel. Occasional short-duration travel and the ability to lift up to 50 pounds are required.

Administers and maintains complex CMMS and enterprise systems, including software installation, configuration, access management, troubleshooting, security, performance improvements, reporting, documentation, and data management. Translates business requirements into system solutions, coordinates technical projects, collaborates with users, vendors, engineers, and leadership, and may supervise personnel. The role is onsite in Batavia and requires compliance with safety regulations and HSPD-12 credentialing requirements.

Lead hands-on administration of IAM systems (Okta, AD, M365), build and maintain integrations with endpoint and security tooling, own device trust and conditional access, support audits (SOC 2/FedRAMP), troubleshoot escalated identity issues, and document configurations while providing broader senior systems administration support.

Maintain and enhance Windows systems and infrastructure supporting NASIC at Wright-Patterson AFB. Collaborate with systems, network, and storage teams to ensure high availability, security, and integrity across production and R&D environments (Windows and Linux). Perform administration tasks including SCCM/Endpoint management, AD CS, scripting (PowerShell/Perl/Bash), hardware/firmware maintenance, backup/restore, and SAN/NAS operations. Requires active TS/SCI and IAT Level II certification.

Administer and maintain hybrid infrastructure including Windows Server, Microsoft 365, Active Directory/Entra ID, Nutanix, Azure/AWS, backup/disaster recovery, and endpoint management. Monitor performance, implement security controls, support incident/change management, provide Tier II/III escalation, create documentation, assist with automation and on-call/after-hours support, and collaborate with engineering, security, and service desk teams to ensure availability, compliance, and operational efficiency.

Administer, configure, maintain, and enhance the ServiceNow platform. Troubleshoot issues, implement upgrades, develop test plans, collect and analyze service data, maintain service catalog and reporting, and train end users to support IT Service Management.

Administer, secure, and modernize enterprise Windows and Linux server and network environments. Manage DNS, DHCP, Active Directory/GPOs, patching, OS upgrades, SQL databases, DISA STIG compliance, and automation (PowerShell). Provide technical leadership, troubleshooting, documentation, and coordination with engineers, cybersecurity staff, and stakeholders to support mission-critical operations.