Top Systems Administrator Jobs

The Senior Systems Administrator manages workflow processes related to Relativity databases, consulting with legal professionals, supervising personnel, and ensuring system requirements are met while preparing documentation and conducting training sessions.

The Senior Systems Administrator II will manage Relativity databases, consult on system requirements, oversee project execution, and ensure quality control while preparing technical documentation and conducting user training.

As a Systems Administrator, you'll maintain Power Platform and SharePoint environments, troubleshoot systems, assist users, and create documentation.

Perform daily administration of Windows servers and workstations, manage system security, access, backups, LAN performance, document/configuration management, and web page design. Track hardware, recommend upgrades, support system transitions and provide operational status while training staff and ensuring compliance with procedures and contracts.

The EXE System Administrator will install, upgrade, and maintain Infor EXE Technologies for C&S facilities, resolve distribution system issues, and provide training.

Lead initiatives on HR Technology, manage Workday functionality upgrades, design integrations, conduct data validation, and support consolidation efforts.

The Junior Systems Administrator will support infrastructure and perform helpdesk tasks, manage servers, assist in Microsoft 365 administration, and maintain network systems.

Support and maintain laboratory systems and infrastructure for DoD missions: implement SIL systems, manage Linux and Windows environments, apply security patches and user management, participate in network/infrastructure design, document solutions, and ensure compliance with government and contract security requirements.

Lead administration and optimization of on‑premises and cloud infrastructure (Active Directory, Microsoft 365, virtualization, SAN). Manage endpoint security and Intune, automate with PowerShell/Power Automate, support disaster recovery, partner with InfoSec for compliance, provide Tier 2/3 support, maintain documentation, and support stadium/game-day operations and events.

The Systems Administrator will manage IT infrastructure by ensuring reliability, security, and efficiency, collaborating with teams, and performing troubleshooting and automation tasks.

The Windows Systems Administrator is responsible for managing Windows server environments, implementing automation and security measures, and collaborating on virtualization strategies.

Administer, maintain, and monitor enterprise collaboration platforms (Microsoft 365, Teams, SharePoint Online, Exchange Online, OneDrive, telephony). Troubleshoot and resolve system issues, manage Active Directory integration and permissions, perform patching/upgrades, participate in disaster recovery testing, develop PowerShell scripts/workflows, coordinate with vendors and Help Desk, and support after-hours or on-call activities.

The CICS Systems Administrator will manage CICS System Definition file maintenance, perform batch utilities, and implement changes at night and weekends.

The Systems Administrator will manage deployments, maintain Exchange servers, handle Active Directory, and perform PowerShell scripting for automation.

The Unix Systems Engineer/Websphere System Administrator will support the Smart Analytics environment, manage Unix servers, provide technical support, document processes, and assist with application development and migrations.

The Systems Admin Tech Lead will oversee IT infrastructure, focusing on MS Clustering, SQL clustering, and security policies, while managing hardware and related technologies.

The Systems Administrator will manage server systems and databases, support software delivery, troubleshoot issues, and assist project teams while communicating effectively with customers.

Provide systems administration support for RHEL servers, manage software and hardware configurations, system tuning, issue resolution, and automation for improved processes.

The CICS Systems Administrator will perform CICS Systems maintenance, manage CICS File Control Table changes, and implement updates in a multi-region environment. Requires the ability to work nights and weekends and use specific IBM mainframe tools.

The Systems Administrator will support data center infrastructure, manage Windows Servers and VMware, and ensure technical issues are resolved efficiently while providing customer-focused service.

Manage and secure enterprise IT infrastructure including Microsoft 365/Azure, Intune endpoint management, Okta identity, Windows/Linux servers, virtualization, Fortinet networking, Active Directory, scripting for automation, documentation, and on-call support.

Lead design and execution of cybersecurity engineering for plant design, build an ICS lab, install/harden and administer OT systems, deploy SIEM/EDR/NDR, perform advanced threat hunting, develop threat intelligence, run risk assessments, integrate security tools, and develop ServiceNow integrations and security workflows.

Manage and support Active Directory and related technologies, ensuring proper configuration, maintenance, and troubleshooting in a federal enterprise environment.

The Unix Systems Admin will provide Tier 2 support, manage UNIX systems, perform maintenance, conduct security audits, and assist military personnel with system issues.

Provide end-user and client-facing IT support for Modern Workplace environments: deploy and manage devices, support Microsoft 365 and collaboration tools, maintain VDI and remote desktop services, enforce security/compliance (MFA, endpoint protection, patching), monitor systems, document in ITGlue, and escalate incidents while recommending continuous improvements.