Top Systems Administrator Jobs

Maintain integrity and quality of enterprise database systems by ensuring security, performing backups, monitoring environments, troubleshooting access and performance issues, working with service desk tickets, and supporting database implementations with senior ODBA staff.

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

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.

Maintain and administer Red Hat Linux and Windows Server systems, supporting server farms and cloud environments (AWS). Perform system tuning, account and storage management (SAN/NAS), integrate NM/EM systems, apply DISA STIG security baselines, document procedures, coach junior staff, and provide M-F and on-call support with occasional travel. Track SLA/ALP metrics and support backups and recovery.

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.

Administers and optimizes Red Hat Enterprise Linux infrastructure, including server installation, monitoring, troubleshooting, patching, virtualization, and containerization. Maintains Puppet manifests and modules, develops infrastructure-as-code automation, manages version-controlled deployments, and supports service outages. The role requires onsite work at Langley AFB, active TS/SCI clearance, collaboration across teams, documentation, and assistance with 24/7/365 shift operations.

Administer IBM mainframe VTS, DASD, SAN, and storage replication environments supporting disaster recovery and failover. Monitor capacity, performance, availability, backups, and replication; troubleshoot incidents; configure storage; conduct recovery testing; maintain runbooks; coordinate with IBM and HPE vendors; and mentor junior staff in high-availability enterprise environments.

Provide senior Linux systems administration and engineering support in a Kubernetes-based Intelligence Community mission environment. Administer CentOS/RHEL systems, Kubernetes tooling, containers, and Bash-based workflows while supporting software productization. The role requires an active TS/SCI clearance with polygraph, Security+ certification, and at least 10 years of Linux administration or systems engineering experience. Desired qualifications include Red Hat certification, Python, Ansible, Salt, VMware, DevOps, classified networking, encryption, storage, authentication, and physical server administration experience.

Own Salesforce CPQ configuration, quote-to-cash workflows, contract and e-signature integrations, and end-user support. Manage Salesforce request intake by gathering requirements, scoping complexity, creating actionable tickets, and routing or prioritizing work. Resolve low-complexity configuration requests, improve documentation and requirements processes with AI-assisted tools, and collaborate with Sales Operations, Marketing Operations, and RevOps stakeholders.

Provide desktop and systems support across Mac, Windows, and Linux; administer cloud services (Office 365, Azure, Exchange), device management (JAMF, Intune), backups, and networks; onboard/offboard staff; manage assets/licenses; support videoconferencing and collaborate on IT procurement, security, and integration efforts.

Provide onsite systems and network administration: deploy and troubleshoot Windows desktops/laptops, manage VMware infrastructure (vCenter/ESXi/vSAN), maintain Active Directory/Azure AD/GPO, support backups (Nakivo), patch Windows/Linux, configure network switches and VLANs, and manage Intune and Bitdefender AV.

Mid-level Linux Systems Administrator role supporting an aerospace and defense client onsite in Virginia Beach, VA. Must be a U.S. citizen with an active Secret clearance and fully vaccinated for COVID-19. Experience with cloud service providers and Kubernetes is preferred.

The Systems Administrator III manages Windows and Linux servers, VMware, O365, and IT infrastructure, providing support and mentoring to staff. Responsibilities include designing applications and maintaining business continuity plans.

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.

Supports and manages center networks, computers, software applications, hardware, and IT assets. Maintains LAN operations, software updates, drivers, firmware, backups, inventories, and equipment repairs. Provides help desk support, manages support tickets, coordinates video conferencing, researches hardware and software purchases, trains staff on system changes, and ensures security awareness records are maintained.

Administer and maintain enterprise Linux environments supporting mission-critical testing and operational readiness. Responsibilities include system configuration, software installation, network component maintenance, Tier 1 incident troubleshooting, hardware support, Bash scripting, capacity analysis, monitoring, performance improvement, and customer communication. The role requires maintaining secure, stable, reliable, and repeatable Linux platforms for testing, validation, and deployment activities.

Provide hands-on support for lab hardware, OS, and applications in an embedded DoD environment. Perform STIG application, patching, vulnerability scanning, backups, scripting, and automation with Ansible. Troubleshoot hardware, OS, applications, and network issues while ensuring compliance with DoD security standards.

The Linux Systems Administrator supports lab environments by maintaining hardware and operating systems, ensuring compliance, troubleshooting issues, and collaborating with teams.

Manages and supports IT infrastructure, including networks, servers, software systems, workstations, user accounts, wireless networks, and cybersecurity initiatives. Troubleshoots hardware, software, connectivity, and outage issues; deploys updates; monitors performance; manages IT tickets; documents procedures; supports user training; tracks KPIs; and coordinates issue resolution. The role also supports manufacturing operations and maintains AS9100, NIST 800-171, and CMMC compliance.

Leads enterprise Linux architecture, administration, governance, and lifecycle activities for classified government systems. Designs backup, disaster recovery, high-availability, virtualization, containerization, networking, identity, monitoring, and security solutions. Directs system enhancement projects, automation, documentation, and cross-platform operations while resolving complex issues independently. Provides technical mentorship and leadership across teams. Requires on-site work, after-hours support as needed, a current Top Secret clearance with SCI eligibility, IAT Level II certification, and ability to obtain a CI polygraph.

Administer and maintain an operational Cross Domain Solution environment at FNMOC. Responsibilities include monitoring systems and logs, implementing updates, managing users and accounts, administering endpoints and bridge servers, maintaining data flows, provisioning and testing Linux systems, securing systems with STIGs and vulnerability scanners, supporting storage and backups, and providing emergency break-fix support. The role is onsite, may require occasional after-hours support, and includes training travel to Stennis Space Center.