Top Systems Administrator Jobs

Responsible for managing the Learning Management Systems (LMS) operations, user management, course management, troubleshooting, reporting, and training users in the use of LMS at the FTC.

Lead IT operations and end-user support: administer Entra ID/Azure AD, Microsoft 365, Intune and Jamf; manage onboarding/offboarding, device lifecycle, software deployment, patching, asset inventory, escalated troubleshooting, and office IT. Improve processes, documentation, and scalability while supporting cloud and on-prem environments for a growing defense/aerospace startup.

Provide systems and network administration for Army/DoD customers, including installing, configuring, and securing workstations, servers, and network devices; monitor performance and security; maintain documentation and web pages; train users; enforce IT policies and Cyber Workforce directives; and support large, multi-year program requirements.

As a Systems Administrator, you will manage IT systems, support users, ensure system security, and optimize infrastructure for clients' needs.

Administer, provision, and maintain HPC/AI compute, storage, networking, and software stacks. Develop automation for provisioning, configuration management, and monitoring. Install, configure, and optimize job schedulers (e.g., Slurm), deploy MPI and containerized HPC applications, perform benchmarking, tuning, capacity planning, security patching, troubleshooting, and vendor coordination while supporting researchers and documenting procedures.

Serve as senior technical owner for enterprise infrastructure across compute, storage, identity, and cloud. Lead Tier-3 incident resolution and root-cause analysis, champion IaC and automation, administer Azure/Power Platform/Intune/Microsoft 365, partner with Security, support network tasks, author SOPs, and mentor junior admins to ensure production availability, performance, and security.

Provide on-site IT support and technical ownership for a facility: desktop support, infrastructure maintenance (servers, network, Wi‑Fi, security cameras), assist with projects (ERP, migrations, hardware refreshes), enforce security/compliance, maintain asset inventory, and provide occasional after-hours/on‑call support.

The Windows Systems Administrator supports curriculum delivery by managing and maintaining Windows servers and desktops, including Active Directory configurations and software rollouts, while ensuring system security compliance.

The Senior Systems Administrator will design, implement, and maintain Windows workstation deployments in a secure DoD environment, ensuring compliance with security standards using various deployment technologies and scripting.

Support, design, configure, and maintain RedHat/CentOS/Linux and Windows Server 2016 environments. Perform patching, vulnerability remediation, VM management, SSL certificate renewals, troubleshoot server/application issues, engage vendors, and track work in ServiceNow. Provide occasional after-hours support and follow VA-approved standards.

Support daily Microsoft 365 and Exchange Online operations, work with Copilot and Power Platform, develop automation solutions, document procedures, and participate in change management and release planning during a full-time 12-week summer internship.

Senior systems administrator responsible for sustaining two critical operating systems onsite at JBAB. Plans and leads major technology assignments, evaluates performance, acts as technical expert across projects, may supervise, and performs system administration tasks including security hardening (FIPS, SELinux, firewalld, fapolicyd) and platform management on RHEL 7/8/9. Works with Java/JEE stack, Apache services, and multiple databases.

Provide systems administration and end-user support for Linux and Windows environments, including Windows Server 2019, Active Directory, virtualization (VMware/Red Hat), deployment/patching, backups, hardware troubleshooting/reimaging, and security monitoring using tools like Ansible, SALT, Splunk, Puppet, SolarWinds, and Nessus. Must hold active TS/SCI with polygraph and be a US citizen.

Provide hands-on implementation, troubleshooting, maintenance, and daily operations for IT systems and infrastructure. Manage client/server/storage/network devices, mobile endpoints, and OS environments (UNIX/Windows/Linux). Deliver Tier I and Tier II support, escalate status to management, resolve hardware/software issues, and support installation/maintenance of Cisco routers and switches.

Lead systems administrator and Information Systems Security Officer (ISSO) for classified intelligence networks. Provide full lifecycle risk management, enforce security policies, drive vulnerability remediation, support assessment and authorization (RMF), integrate MI systems across classified domains, and deliver rapid cyberspace threat analysis and technical responses to keep systems authorized and mission-ready.

Install, configure, monitor, and maintain physical and virtual servers, SAN/NAS storage, backups, and server security. Manage Active Directory, DNS, DHCP and network connectivity; perform upgrades, troubleshooting, vendor coordination, and support for casino-specific systems. Train technicians and assist IT operations and help desk while following IT policies.

Provide Tier 1 and Tier 2 support for staff and campuses, administer and promote Google Workspace and approved productivity tools, create training and documentation, design workflow automations, manage SaaS provisioning and licenses, monitor email security, participate in Sunday campus support rotation, and support on-site and remote events.

Manage and maintain school IT infrastructure and cybersecurity; administer Google Workspace and Chromebooks; provide technical support and training to faculty, staff, and students; coordinate vendors and campus systems (security cameras, access controls, telephony, HVAC controls); oversee backups, licensing, inventories, purchasing, and long-range technology planning while supporting the school's mission.

Manage and secure Microsoft cloud and on-premises infrastructure (Azure, Entra ID, Intune, M365). Provide Level 1/2 user support, endpoint and Windows administration, backups, virtualization assistance, network troubleshooting, and participate in IT projects and documentation.

Manage and secure classified closed-area IT infrastructure: Active Directory administration, desktop support, virtualization (VMware/Hyper-V), monthly patching and STIG compliance, DNS/DHCP and domain health, logging and incident response, documentation, change management, and support for RMF accreditation and audits in a Top Secret environment.

Support data center infrastructure and scientific computing systems: install and manage computer and storage hardware, assist with asset management and DCIM, participate in off-hours support, and help maintain operational readiness for large-scale HPC and data-processing environments.

Manage and support hybrid Windows, macOS, Android, and iOS infrastructure for 200+ users. Administer Windows Server/Active Directory, Google Workspace, MDM, Meraki networking, AWS cloud resources, security tools, and MS SQL. Lead a five-person help desk, oversee disaster recovery, automation, vendor management, and IT documentation while responding to incidents and improving processes.

Provide day-to-day administration and technical support for Linux/Windows systems, virtualization (VMware), storage (NAS/SAN), backups, patching, and hardware/software installs. Configure servers, workstations, and network components; perform capacity planning, tuning, testing, documentation, and troubleshooting in a secure federal environment requiring TS/SCI with polygraph.

Manage enterprise PKI services including issuance, renewal, revocation, token issuance, and MFA enforcement across multiple networks. Monitor certificate health, CRLs, and authentication systems; troubleshoot certificate and authentication failures; support Trusted Agents and admins; maintain documentation and procedures; support identity-related incident response to protect mission-critical systems.

Operate, maintain, and troubleshoot enterprise/DoD VoIP telephony systems (gateways, IP phones, PRI/FXO), perform installations and IMACs, collaborate with network managers, document configurations, and respond to service requests to ensure continuous voice service.