Top Systems Administrator Jobs

Provide systems administration and operational support for intelligence training applications and infrastructure (Windows/Unix/Linux, VDI, VMware, NetApp). Act as Cyber Security Liaison for ticketing systems, manage accounts/LMS, build and deploy baselines/images, perform backups/restores, and deliver classroom/instructor support. Maintain documentation, SOPs, and adhere to DoD cybersecurity requirements while supporting NIPR/SIPR and classified environments.

Lead and supervise a team of Functional Systems Administrators supporting intelligence training systems. Provide hands-on administration for Windows/Unix/Linux platforms, VDI and VMware infrastructures, NetApp storage, GCCS-I3, LMS/IMI delivery, ticketing (ServiceNow/Remedy), account management, backup/restore, and cybersecurity liaison duties. Ensure system baselines, imaging, and operational support for classified and unclassified environments while delivering classroom and instructor support.

Configure, deploy, and maintain virtual and physical servers, workstations, and network infrastructure for the MACC-TTE. Integrate and operate cohesive virtual/physical environments, implement IA controls, perform testing and reset, automate provisioning and orchestration (Ansible/Python), and support diverse devices including ICS/SCADA, IoT, and RF.

Provides on-site IT support, systems administration, hardware and software troubleshooting, network and server maintenance, endpoint security, helpdesk ticket resolution, inventory management, vendor coordination, and location setup. Supports Windows and Mac users, infrastructure, phones, mobile devices, AV equipment, and security surveillance. Travels up to 60% to Carvana locations, participates in hardware refresh projects and on-call rotations, and documents solutions in Jira.

Maintains and configures Workday Financials, including security, reporting, integrations, troubleshooting, release support, and operational procedures. Analyzes requirements, tests solutions, resolves complex issues, supports internal teams and vendors, and participates in special projects. The role requires strong communication, organization, problem-solving, customer service, and financial-report interpretation skills. A bachelor’s degree or two years of relevant Workday experience is required; Workday Pro certification is preferred.

Provides on-site systems administration for GEOINT exploitation systems, including troubleshooting hardware, software, VDI endpoints, virtual machines, and geospatial applications. Automates software deployments, packages software, maintains system security and documentation, supports backups and recovery, develops testing strategies, and recommends corrective solutions. The role also manages accounts, evaluates vendor products, trains users, documents issues, and provides technical guidance to junior staff in a customer-site environment.

Administer AWS cloud infrastructure, virtual machines, and Windows or Linux systems in an onsite defense intelligence environment. Maintain secure RMF/STIG-compliant systems, support virtualization, and potentially automate processes with Ansible, containers, scripting, and DevOps tooling. The role requires an active DoD Top Secret/SCI clearance and IAT Level II certification, with approximately 10% travel.

Administers, integrates, secures, and improves classified and unclassified systems for the Air Force Research Laboratory. Troubleshoots servers and applications, manages Windows, Linux, and virtualized environments, performs patching and backups, maintains access controls and configurations, monitors system performance and security, and supports STIG compliance, vulnerability remediation, PKI, COMSEC, and RMF activities. The role also documents changes, supports upgrades and recovery services, and communicates technical recommendations to government and contractor teams.

Provide systems administration and account-management support for Distributed Ground System operations. Provision and maintain user accounts with SailPoint, troubleshoot access and system issues, support upgrades, perform health checks across infrastructure, document configurations in SharePoint, collaborate with security teams, and guide Tier 1 and Tier 2 support staff. The role operates on rotating four-day, 10-hour shifts and requires an active TS/SCI clearance.

Administer and support Windows workstations and servers, including Active Directory, software installations, upgrades, troubleshooting, performance monitoring, backups, system audits, and security compliance. Educate end users, support hardware and software configurations, contribute to system evaluations and long-term planning, and participate in special projects. The role requires 5+ years of systems administration experience, a qualifying DoD IA certification, and an active TS/SCI clearance with polygraph.

Administers and supports Windows, macOS, Apple, mobile, and other endpoint systems throughout their lifecycle. Manages imaging, application deployment, patching, device management platforms, operating systems, software integrations, printer servers, licensing, and endpoint security. Develops PowerShell and Linux automation scripts, provides second- and third-level support, troubleshoots hardware and software, documents procedures, coordinates with vendors and technicians, and recommends hardware and software improvements.

Administers the Dotti platform after customer onboarding, managing client data, system configurations, user permissions, catalogs, pricing, variable-data solutions, kits, and multi-location distribution programs. Tests releases, implements enhancements, translates business requirements into scalable workflows, and resolves system, data, customer, and production issues. Partners with Production, Scheduling, Kit Engineering, and other stakeholders to align technology with order intake, manufacturing, fulfillment, and distribution processes.

Serves as the primary on-site technical authority for NALCOMIS and NTCSS virtual environments at NAS JRB Fort Worth. Administers servers, virtual machines, databases, accounts, storage, interfaces, system updates, cybersecurity controls, and availability requirements. Coordinates downtime across supported Navy aviation sites, provides outage response, maintains compliance records and reports, performs quality checks, and trains fleet personnel, DBAs, and system administrators. Requires extensive Navy aviation maintenance administration, IT, systems administration, and NALCOMIS DBA experience.

Provides on-site NALCOMIS systems administration and continuity support for Navy aviation environments. Responsibilities include Veeam backups, disaster recovery, VM replication, system startup and shutdown, contingency SOPs, remote access troubleshooting, connectivity diagnosis, technical scripting, ITSM change and trouble reporting, and DoD security compliance. Requires maintaining 99% availability and responding to outages within two hours, with a 5:00 a.m. start time and active Secret clearance.

Maintains, configures, and troubleshoots operating systems, servers, networks, and software. Monitors system performance, manages backups and restores, supports end users, documents configurations, and implements security protocols. The role also involves virtualization, cloud services, enterprise networking, VLAN architecture, network protocols, and scripting. A Secret clearance is required to start, with up to 10% local travel.

Administer and support IT systems in an automotive manufacturing environment, including MES and ERP administration, network and device monitoring, firewalls and cybersecurity systems. Manage Microsoft Active Directory, Cisco infrastructure, and VMware virtualization. Ensure reliable system operations and collaborate across teams to support production environments.

Manages and maintains IT systems, networks, workstations, servers, applications, and infrastructure across multiple sites. Provides remote and onsite troubleshooting for Windows, network, operating system, application, Azure, and Active Directory issues. Installs and administers Windows and iOS systems, supports virtualization and cloud environments, and explains technical concepts to nontechnical users. The role requires strong customer service, communication, collaboration, independent judgment, and regular local travel, with occasional overnight travel.

Administer and improve Microsoft 365, Azure, AWS, Windows Server, identity, endpoint, networking, monitoring, backup, and security environments. Lead complex troubleshooting, infrastructure migrations, incident response, disaster recovery, vulnerability remediation, and cloud initiatives. Automate administration with PowerShell and cloud CLIs, implement infrastructure as code, maintain technical documentation, and optimize reliability, performance, security, and cost across hybrid and multi-cloud infrastructure.

Administer classified Windows workstations, servers, Active Directory, and Open Storage Area infrastructure. Troubleshoot user and system issues, manage accounts, patch systems, monitor health and audit logs, conduct Nessus vulnerability scans, perform SCAP/STIG assessments, remediate findings, maintain security baselines and inventories, support DCSA inspections, and coordinate compliant media transfers. The role also supports continuous monitoring, security impact analyses, configuration control, and escalation of security incidents.

Administer and troubleshoot IBM z/OS network systems and connectivity, including VTAM, TCP/IP, TN3270, FTP, Policy Agent, and SMTP. Manage TSO, ISPF, JCL, VSAM, catalogs, and JES2 operations. Develop automation scripts and monitoring or reporting tools, support MQ, DB2, CICS, file transmission, printing, and email infrastructure, and collaborate with enterprise network and security teams.

Administer and support IBM z/OS environments, including installations, upgrades, maintenance, lifecycle management, and complex troubleshooting. Use SMP/E for software maintenance, PTFs, APARs, and HOLDDATA processing. Develop REXX automation and administer z/OSMF services and workflows. Monitor performance, availability, capacity, and system health; support upgrades, migrations, disaster recovery testing, production operations, and on-call activities. Collaborate across infrastructure teams, maintain technical documentation, and mentor other mainframe administrators.

Administer and maintain Windows/Linux servers, AD, IAM, M365, Azure and AWS cloud services, virtualization, SAN/storage, SIEM, MDM, email gateways, backups and monitoring. Perform patching, troubleshooting, scripting/GPOs, documentation, security/compliance (CJIS), on-call rotation, ticket queue support, and participate in ISD projects.

Administer and maintain Nearmap's revenue tech stack (Salesforce, CPQ, NetSuite), build declarative automation, configure Conga CPQ, monitor integrations, support end users, run UAT, maintain documentation, and coordinate changes with global admins and engineering.

Install, configure, test, troubleshoot, secure, and support Windows-based applications (Microsoft Office, Java, Visual Studio, Raytheon EAGLE, SharePoint/Power Platform). Provide ticketing-system support to application owners and developers, implement DISA STIGS, perform upgrades/patching (may include occasional off-hours), and perform other assigned duties.

Administer and troubleshoot Windows Server 2012, SLES/RHEL Linux, and VMware ESX environments. Configure and maintain 1Gb/10Gb LANs and Layer 2/3 Ethernet devices. Support PC and server architecture, perform setup, configuration, and network troubleshooting. Collaborate with team; requires 3-5 years of applicable experience.