Top IT Systems Administrator Jobs

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.

Provide end-user IT support and system administration for a multi-site manufacturing environment: manage Hyper-V servers, backups/DR, patching, ERP/JDE administration, printer and workstation support, documentation, compliance (CMMC), and lead local IT projects while handling helpdesk escalations and finance-related ERP support.

Maintain, configure, and operate servers, virtual environments, networks, and backups. Troubleshoot hardware/software, manage virtualization (VMWare), implement automation and IT strategy, lead helpdesk support, and handle capacity, storage, database performance, disaster recovery, and data protection.

Provide on-site end-user and infrastructure support: deploy and maintain desktops, servers, network devices, Azure services, virtualization, IP cameras, printers, MDM, patching, backups, and ticketed incident resolution across multi-site operations.

Lead design, deployment, and maintenance of enterprise IT systems and data center operations. Provide expert technical support, security incident response, patching, backup/recovery, inventory and access management, and documentation. Collaborate cross-functionally, mentor junior staff, and improve onboarding/offboarding and operational processes to ensure infrastructure reliability and security.

Lead and maintain Windows and VMware datacenter infrastructures, drive upgrades and migrations, implement automation and monitoring, manage projects and cross-functional teams, mentor staff, ensure 24/7 availability, compliance, and continuous improvement.

Manage and improve cloud-based SaaS IT environment, administer M365 and identity systems, operate and tune security platforms (Arctic Wolf, Zscaler, Okta, Mimecast), monitor alerts and lead incident response, oversee helpdesk (Freshservice), manage vendors, enable users through training and documentation, and apply AI and automation to streamline IT operations.

Provide Tier 1/2 support and maintain servers, networks, virtualization, backups, and Microsoft 365 infrastructure. Troubleshoot hardware/software/connectivity issues, assist with deployments and upgrades, enforce security and compliance, document configurations, and collaborate on long-term infrastructure improvements to ensure stability and performance.

Provide on-site IT support for ~31 users across three locations; act as primary internal IT contact; coordinate with MSP and vendors; administer Microsoft 365; troubleshoot workstations, printers, and basic networking; manage onboarding/offboarding, IT documentation, asset inventory, endpoint protection, and CMMC Level 1 compliance efforts.

Serve as Atlassian SME and technical lead building and maintaining integrations (REST, GraphQL, webhooks) between SaaS, CRM/ERP/billing, and internal systems. Design secure, reliable APIs, implement monitoring, automate workflows, support and upgrade clustered Atlassian applications on Linux, create documentation, and collaborate with stakeholders while mentoring teammates.

Serve as an Atlassian SME and senior systems administrator to design, build, and support API/GraphQL/webhook integrations between SaaS and internal systems, automate processes, implement monitoring, manage clustered Linux Atlassian upgrades, resolve collaborative app issues, document solutions, and partner with stakeholders to improve operational efficiency.

Lead Atlassian administration and integrations by designing, building, and maintaining REST/GraphQL/webhook integrations between SaaS, CRM/ERP, billing, and internal systems. Manage Jira/Confluence in clustered Linux, implement monitoring and security best practices, mentor teammates, troubleshoot stakeholder issues, and execute upgrades and data migrations to improve automation and reliability.

Provide hands-on IT systems and application support for laboratory and operational technology environments. Troubleshoot incidents, manage tickets, deploy and maintain applications, support workstations, networks, and scientific instrumentation, document SOPs, and deliver user training and service improvements to support mission-critical operations.

Provide first-level infrastructure support: troubleshoot, deploy, patch, and maintain Windows Server environments, Active Directory, Office 365, virtualization, backups, and networking. Monitor performance, respond to alerts/tickets, support data recovery, participate in on-call rotation, and assist IT projects to ensure secure, reliable systems for clinical and business operations.

The IT Systems Administrator will support IT infrastructure for the launch environment, ensuring optimal performance and compliance with standards while collaborating across teams and maintaining documentation.

Senior Systems Administrator responsible for designing, administering, securing, and supporting enterprise infrastructure across Windows and Linux, virtualization, cloud, identity, storage, backup/DR, and endpoint platforms. Leads projects, mentors juniors, automates operations, partners with security and networking, and participates in on-call rotations to ensure reliable, secure infrastructure.

Administer and enhance NetSuite ERP (roles, workflows, SuiteScript, integrations, reporting) and support Windows-based IT systems, networking, endpoints, and vendor relationships to enable finance, supply chain, inventory, and sales operations.

Provide Windows server and desktop administration and Level II support in a multi-site LAN/WAN environment. Monitor system performance, document infrastructure and processes, participate in on-call rotation, support IT projects, act as vendor liaison, and make technology recommendations to maintain enterprise systems.

Provide day-to-day end-user IT support and endpoint management across macOS, Windows, and Linux. Administer MDM and IAM/IDP systems, enforce security and HIPAA/PII compliance, manage SaaS apps and hardware inventory, perform L1/L2 network troubleshooting, and automate IT tasks via scripting. Maintain documentation and support a diverse user base in a fast-paced production environment.

Provide North American technical support for networks, servers, and endpoints. Install, configure, and maintain hardware, cabling, firewalls, switches, VPNs, and enterprise applications (Epicor, Microsoft 365, Salesforce). Troubleshoot system, software, and network issues, train users, and collaborate with the MIS Manager to implement solutions and ensure security and performance.

Provide hands-on support and administration for end-user devices, servers (virtual/physical), network infrastructure, firewalls, and Office 365. Troubleshoot tickets, monitor performance, perform backups/recovery, assist with SQL and virtualization, and collaborate with IT and third-party teams on projects and incident response.

Provide IT support and systems administration: troubleshoot Windows/macOS, onboard/offboard staff, maintain conferencing and server systems, assist IT projects, and improve MDM/identity systems.

Provide Tier 1/2 end-user IT support across multi-site manufacturing: deploy and manage devices, administer Microsoft 365 and Active Directory, handle onboarding/offboarding, troubleshoot network and printer/RF scanner issues, coordinate with MSP and vendors, and maintain IT documentation and baseline security practices.

Administer, configure, and support global collaboration and AI productivity platforms (Microsoft 365, Slack, Zoom, Power Platform). Build automation, enforce governance and security (DLP, eDiscovery), support meeting room technologies, provide escalation support, document standards, and partner with stakeholders to drive adoption and operational excellence.

The IT Systems Administrator ensures operational excellence in mission-critical IT settings, providing support for networking and IT infrastructure while collaborating with teams to resolve technical issues and maintain systems.