Top Systems Administrator Jobs

The Network Systems Admin will support app teams in change and code deployments, incident resolution, and event monitoring requiring communication skills and system administration expertise.

Responsible for provisioning, installation, configuration, operation, and maintenance of systems hardware and software and related infrastructure. Participates in technical research and development, assists project teams, and performs daily system monitoring and troubleshooting.

Provide installation, configuration, and support of software and tools, maintain networks, diagnose issues, and work with vendors on software integration.

The Systems Administrator/SR is responsible for configuring and supporting TFS and SharePoint, documenting processes, and resolving software issues with vendors.

The Systems Administrator will manage and monitor servers, handle technical issues, support various IT teams, and ensure compliance with security standards.

This role involves implementing, troubleshooting, and maintaining IT systems, including managing infrastructure and providing Tier I and II support, focusing on UNIX and Windows operating systems as well as network components.

Maintain and support Windows and IIS production environments for secure federal applications. Duties include server administration, patch management, monitoring, troubleshooting, user access management, automation, availability and performance support, and collaborating with development, DBAs, cybersecurity, and infrastructure teams.

Administer, patch, configure, monitor, and troubleshoot enterprise systems and applications in a secure federal environment. Perform vulnerability remediation, access management, incident response, backups, change management, documentation, and operational reporting while collaborating with engineering, cybersecurity, and service desk teams to ensure mission continuity and secure operations.

Administer and maintain the Fiserv DNA core banking system and connected interfaces. Manage updates, patches, security controls, user access, reporting (DNA Publisher/SQL/Oracle), and vendor coordination. Troubleshoot core-related incidents, support integrations (APIs, automation), document configurations, participate in projects and on-call rotations to ensure reliability and regulatory compliance.

Support and optimize Intake-to-Pay and Purchase-to-Pay systems (Coupa/Levelpath/ERP). Troubleshoot issues, manage integrations, configure workflows and user access, onboard suppliers, monitor performance, gather requirements, and drive continuous improvement to keep procurement and invoicing processes running smoothly.

Manage and maintain the OA DCGS virtualized SDDC IaaS environment: administer vSphere/ESXi, server and storage hardware (Dell/EMC), monitor backups and performance, troubleshoot outages, document configurations, collaborate with security, and mentor Tier 1/2 staff.

Provide on-site and remote IT helpdesk support for the Fullerton site: troubleshoot and repair PCs, laptops, printers and mobile devices; manage imaging, deployments, moves/adds/changes, and equipment lifecycle; perform basic network tasks; maintain asset inventory and documentation; ensure endpoint protection and updates; support site production/office technology and assist with administration of platforms like Active Directory, Microsoft 365, Ninja One, and Intune.

Administer and optimize the Appian platform across environments for the USCG cloud modernization program. Manage upgrades, security, authentication, CI/CD, monitoring, backups, integrations, troubleshooting, governance, and support additional low-code platforms while collaborating with development, infrastructure, and business teams.

The Senior Systems Administrator analyzes, designs, implements, administers, and maintains IT infrastructure systems including virtual systems, servers, and backups, collaborating with multiple teams for system improvements.

Maintain and improve the Integrated Management System (ISO 9001/14001/45001/50001), manage document control, coordinate audits, track nonconformances and CAPAs, produce IMS data/KPIs and dashboards, support cross-functional process alignment, training, and continuous improvement to sustain certification and compliance.

As a Senior IT Systems Administrator, you will manage classified IT systems, configure secure networks, maintain virtualization platforms, and ensure compliance with security standards while supporting a team in a closed environment.

Provide administration and support for Windows Server 2019/2022 and Windows 10/11 clients, manage AD/DNS/Certificate Authorities, administer RHEL/Amazon Linux in AWS, deploy and maintain AWS and on-prem environments, and automate provisioning and configuration using SaltStack, Ansible, Bash and Python.

Operate and maintain JWICS-connected enterprise systems for PACAF A2Y, including Active Directory, Exchange, VMware, backups, patching, and restoration. Monitor system health, meet availability targets, administer AVAMAR backups, manage patches via SCCM/WSUS/Tanium, govern AD replication and NetIQ DRA, document events in SolarWinds/Splunk/ITSM, and produce vulnerability and patch reports. Provide SOPs, training, and technical leadership to ensure security and mission readiness.

The MS Enclave Administrator will manage Azure environments, troubleshoot issues, maintain systems, and lead projects while collaborating with Microsoft teams and customers.

The Systems Administrator is responsible for managing Windows-based systems, Microsoft 365, Active Directory, and virtualization technologies while troubleshooting and resolving technical issues.

Responsible for maintaining and supporting mission-critical communications systems infrastructure, including installation, performance tuning, and cybersecurity compliance.

Provide IT systems administration in a mixed Microsoft Windows and Redhat Linux environment while ensuring compliance with DoD security requirements.

Provide IT systems administration in a Windows and Red Hat Linux environment, troubleshoot technical problems, and obtain security certification within 6 months.

The Systems Administrator III will manage and optimize virtual infrastructure, ensure system performance, address failures, and support complex systems while collaborating with team members.

The Windows Systems Administrator will manage Windows Server operations, Active Directory, patch automation, and VMware systems, while leading a team and ensuring effective communication.