Top Systems Administrator Jobs

Leads infrastructure across three museum sites, administering Windows and Linux servers, Hyper-V virtualization, identity services, backups, networking, firewalls, wireless, monitoring, and security tooling. Owns disaster recovery, documentation, infrastructure projects, vendor relationships, server rooms, and on-call support. Mentors a junior administrator, builds institutional knowledge, leads cross-training, and ensures resilient operations while supporting museum applications, cloud migration, and technology initiatives.

Maintain, configure and support unified communications and VoIP systems including 911 alerting, SIP/PRI/analog lines, endpoints, QoS and DHCP/DNS. Provide application support for customer engagement products, generate call usage reports, troubleshoot telephony services, and collaborate with networking team on UC deployments and configurations. Onsite presence in Palmerton and occasional travel within company footprint required.

Administer and validate automated and computerized systems for manufacturing and lab operations to maintain cGMP compliance. Configure process control and monitoring software, manage backups and recovery, lead validation (SAT/FAT), author change controls and lifecycle documentation per GAMP 5, troubleshoot automation systems, integrate with LIMS/Historian, lead projects, and drive continuous improvement across cross-functional teams.

Own and scale Harness’ corporate IT environment across identity and access management, SaaS applications, macOS and mobile device management, automation, endpoint security, networking, and infrastructure. Lead IT projects, provide Tier-3 troubleshooting, support incident response and root-cause analysis, maintain documentation, and participate in on-call coverage. The role supports over 1,000 users across multiple locations and requires independent systems ownership, automation expertise, and occasional office travel.

Provide desktop and server technical support: install, maintain, and troubleshoot PCs, printers, servers, network and voice systems; manage user accounts and directory services; perform backups; document systems; provide on-call and regional support; collaborate with IT team to evaluate tools and resolve outages.

Provide Linux systems administration for a defense program: manage CentOS/RHEL/Rocky servers, upgrades, hardware installs, STE and data transfer tasks, PXE and VM builds, automation (Ansible), IDM/LDAP integration, TLS troubleshooting, and Windows workstation administration. Must hold active Top Secret/SCI with favorable polygraph.

Perform Linux systems administration, storage and KVM virtualization management; implement automation with Ansible/Salt; manage FreeIPA, scripting (Bash/Perl/Python), SSP compliance, STE/STN support, and AWS cloud operations while maintaining required security posture.

Manage and monitor servers, networks, and cloud environments; implement and maintain CI/CD pipelines; troubleshoot and ensure high availability; automate tasks with Ansible and Terraform; enforce system security (firewalls, antivirus, access controls); collaborate with development teams; maintain documentation and stay current with DevOps trends.

Mid-level Linux systems administrator responsible for CentOS/RHEL/Rocky server administration, upgrades, hardware installation, STE and customer data transfer tasks, IDM/LDAP integration, building VMs with Proxmox, PXE boot, TLS troubleshooting, and general Linux/Windows system support.

Provide day-to-day systems administration and IT operations support for Windows and Linux servers, networking, virtualization, and cloud services. Monitor systems, respond to alerts, perform provisioning, patching, backups, and disaster recovery. Manage Active Directory and Microsoft 365, troubleshoot network and hybrid cloud connectivity, document configurations, and contribute to automation and Agile project work.

Lead Salesforce administration for Sales and Service Clouds, manage integrations and data flows, define system roadmaps, optimize business processes, document configurations, and partner cross-functionally to drive scalable GTM system solutions.

Provide onsite Linux system and network administration for NAVAIR systems at Patuxent River NAS: install, configure, monitor, troubleshoot, and maintain LAN/WAN, VMware, SAN, and related hardware/software. Implement backups, disaster recovery, and security measures (STIGs/ACAS), support users, and respond to outages. Work requires DoD security compliance and collaboration with program and technical teams.

Provide tier-2 IT support in a hospital: troubleshoot workstations, servers, network equipment, and applications; administer Windows Server/Active Directory, Group Policy, Office 365 tenant, and VMware; maintain backups and antivirus; manage help-desk requests; and support departmental projects while complying with HIPAA and safety policies.

Administer, secure, monitor, patch, and troubleshoot enterprise Linux environments while providing Tier 2/3 infrastructure support. Support Windows Server, VMware, OpenShift, Kubernetes, containerized applications, enterprise applications, and security hardening. Collaborate with development, DevOps, infrastructure, and security teams, document procedures, resolve vendor issues, and participate in weekly on-call rotation with travel to other locations as required.

Administer and optimize Workday Financials, manage releases and integrations, maintain security and data integrity, support testing and deployments, produce reports and documentation, train users, and collaborate with Finance, IT, and vendors to improve processes and ensure compliance.

Provide Tier 2-3 Unix/Linux systems administration and troubleshooting for large-scale OSS environments. Ensure system availability and uptime, enforce security policies, manage privileged accounts, collaborate with clients and operational teams, create/update documentation and WLAs, and support a 24/7 on-call rotation with potential off-hours work.

Senior Systems Administrator responsible for SCCM 2007/2012 management, patching, imaging, and mass software deployment. Troubleshoots complex system issues, tunes systems for performance, coordinates releases with customers and vendors, mentors staff, documents procedures, and maintains enterprise desktop/application deployment standards.

Administer and maintain the Microsoft 365 environment (SharePoint, Exchange, Teams, OneDrive, Intune, Entra), troubleshoot M365 issues, support helpdesk escalations, manage Windows servers and virtualization, produce usage and license reports, and provide user training and implementation support during migration to Microsoft 365.

Configure, deploy, and maintain Windows servers and Windows 11 desktops, LAN/WAN, printers, and network security for ~75 users and 125 devices. Perform ACAS/SCAP vulnerability scans and patch remediation, harden systems, schedule backups, build lab/test environments, and prepare documentation for eMASS ATO submissions. Provide onsite system administration and support.

The Systems Administrator II is responsible for maintaining enterprise IT systems, troubleshooting server issues, managing Azure accounts, and ensuring compliance with security protocols while providing documentation and support for enterprise assets and operations.

The Systems Administrator III is responsible for managing and configuring systems, supporting Active Directory and cloud services, maintaining data encryption, and ensuring system compliance, among other IT tasks.

Manage and modernize enterprise endpoint environment using SCCM and Intune. Oversee Windows 10/11 lifecycle, implement Autopilot provisioning, maintain GPO/cloud policies, automate with PowerShell and Microsoft Graph, ensure endpoint security and compliance, deploy applications, monitor health, and troubleshoot complex deployment issues while collaborating with security, infrastructure, and helpdesk teams.

Administer and optimize enterprise monitoring platforms, maintain secure STIG-aligned configurations, perform patching and vulnerability remediation, configure alerts/dashboards, provide Tier 3 troubleshooting, collaborate with engineering and cybersecurity teams, and maintain documentation to support audit and accreditation.

Provide systems administration and network support for SMB clients: manage Windows servers, Office 365, Azure, virtualization, switches/firewalls, and perform end-to-end troubleshooting, automation, change control, and client communication. Must be local to Fair Lawn, NJ.

Lead design, implementation, and operation of enterprise Microsoft Azure infrastructure and services. Drive cloud migrations, IaC, CI/CD, identity and security, monitoring, disaster recovery, cost optimization, and Microsoft 365/AVD services. Act as senior escalation for incidents, document architectures and runbooks, mentor staff, and manage vendor partners to ensure secure, resilient, and cost-effective cloud platforms across corporate and property environments.