Top IT Systems Administrator Jobs

Administer and optimize Microsoft Intune, Windows Autopilot, device compliance, application deployments, security baselines, and endpoint security across Windows, macOS, iOS, and Android. Troubleshoot enrollment, policy, synchronization, and deployment issues; develop PowerShell automation; monitor compliance and reporting; and perform root-cause analysis. Collaborate with cybersecurity, infrastructure, identity, and application teams to support endpoint modernization, Zero Trust initiatives, and secure hybrid work.

Administer and improve global IT infrastructure across Windows Server, Active Directory, Microsoft 365, virtualization, networking, storage, backup, and disaster recovery environments. Support cybersecurity operations through vulnerability management, endpoint protection, identity security, incident response coordination, and security hardening. Monitor systems, troubleshoot issues, maintain documentation, develop PowerShell automation, support upgrades, and participate in on-call rotations and disaster recovery exercises.

Administer domain identity, endpoints, workstations, operating system deployments, patching, imaging, lab refreshes, printers, network-connected devices, ticketing, and inventory systems. Troubleshoot hardware and software during engineering integration and testing events, support cybersecurity compliance, document procedures, train technicians and lab users, and collaborate with multidisciplinary NASA engineering teams onsite at Johnson Space Center.

Installs, configures, monitors, secures, backs up, patches, and troubleshoots servers, systems, hardware, software, and infrastructure. Supports client requests, manages user accounts, maintains procedures and standards, performs performance tuning and capacity reporting, monitors data center equipment, handles recovery from failures, and participates in an on-call rotation. The role is fully on-site in Dunedin, Florida and emphasizes technical problem-solving and customer service.

Administers enterprise Windows and Linux compute, storage, virtual desktop, Active Directory, backup, and replication infrastructure. Processes server build requests, supports development and certification clusters, manages SAN/NAS environments, and resolves escalated helpdesk issues. The role requires working across enterprise systems, responding to infrastructure needs, communicating effectively, and following laboratory safety and organizational policies.

Provides Tier 1 and Tier 2 global employee IT support while administering macOS endpoints, identity platforms, SaaS applications, access workflows, and IT assets. Manages onboarding, offboarding, device lifecycle, office technology, vendors, security compliance evidence, and service improvements. Resolves complex issues, automates repetitive workflows, creates documentation, and leads assigned IT projects. Requires in-person attendance five days weekly at the Santa Clara office.

Manage organizational IT systems and infrastructure, provide end-user support, troubleshoot Mac and Windows hardware and software, administer Okta, Google Workspace, and Microsoft 365, manage applications and licenses, support MDM and zero-touch deployment, maintain networks, and create user training and documentation.

Administer Epic’s corporate identity, access, endpoints, applications, devices, and employee IT support. Manage onboarding and offboarding, access reviews, authentication and device standards, MDM provisioning, asset inventories, procedures, and audit evidence. Support SOC 2 or similar compliance activities, security reviews, and incident response while partnering with infrastructure and people operations. This is a fully remote, US-based role supporting a global engineering team.

Administer Microsoft 365, Windows Server, Active Directory, Intune, Azure, networks, endpoints, and virtual servers. Provide hands-on end-user support, troubleshoot infrastructure issues, manage patching, backups, deployments, and security controls. Develop PowerShell scripts and Power Automate workflows, support cybersecurity and compliance initiatives, document procedures, and contribute to infrastructure and technology improvement projects.

Lead administration of Microsoft 365, Google Workspace, SaaS applications, Azure identity, and cloud infrastructure in a fully cloud-based organization. Provide Level 2/3 service desk escalation, execute migrations and cybersecurity projects, establish IT service processes, manage assets and vendors, and support onboarding, offboarding, incident response, change management, and M&A initiatives. The role partners with IT leadership and may help build and manage a growing internal technical team.

Administers the agency’s hybrid Microsoft IT environment, including Active Directory, Entra ID, Intune, Windows devices, Group Policy, endpoint security, patching, and compliance controls. Provides Tier 2/3 support, troubleshoots infrastructure and security incidents, maintains documentation, trains staff, and supports modernization initiatives. Participates in after-hours on-call response for cybersecurity alerts, outages, and critical technical issues.

Provide on-site IT systems and desktop support in manufacturing and office environments. Administer Windows servers, virtualization, storage, Office 365/Azure, AD/Exchange, networking, and deploy infrastructure across multiple locations. Troubleshoot hardware/software interfacing with factory equipment, script administrative tasks, document procedures, mentor staff, be on-call, and travel between Texas sites as needed.

Provide on-site IT systems and desktop support in manufacturing environments, administer Windows servers, virtualization, storage, networking, Office365/Azure, Linux and open-source stacks, deploy IT infrastructure across sites, document and train staff, be on-call and travel between Texas locations.

Provide end-to-end systems administration for on-prem and cloud environments: install/configure Windows/Linux servers, firewalls, networks, virtualization, storage, backups, and Java web applications; support customers via tickets and coordinate maintenance and upgrades.

The IT Systems Administrator at AstroForge will build and maintain internal tech infrastructure, support users, manage network and security compliance, and handle hardware lifecycle management.

Administer and improve Crest Operations’ hybrid IT environment across Windows Server, Active Directory, Microsoft 365, Azure, VMware, and endpoint platforms. Responsibilities include identity and access management, endpoint configuration, patching, migrations, backups, recovery testing, monitoring, root-cause troubleshooting, automation with PowerShell and APIs, documentation, ITIL-based ticket and change management, and proactive risk identification.

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

The role involves managing and optimizing cloud infrastructure services as a Linux Systems Administrator, focusing on systems performance and troubleshooting.

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.

The IT Operations Engineer will provide technical support, design scalable IT infrastructure, and ensure efficient technology use across the company.

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.