Top Network Administrator Jobs

Administer and maintain a mission-critical physical and virtual network enclave: install and configure network equipment and firewalls, perform patches, backups, vulnerability scanning, data management/transfers, troubleshoot connectivity, and ensure compliance and security. Must obtain DoD 8570 IAT Level II within six months and hold TS/SCI with polygraph.

Manage and maintain CRC Americas server, network, virtualization, storage, and voice environments. Administer Windows, AD/GPO, Exchange, O365, VMware, Cisco networking and VoIP; perform monitoring, backups, security filtering, troubleshooting, reporting, documentation, help-desk escalation, automation, and participate in after-hours support and infrastructure projects.

Provide day-to-day administration, monitoring, and security operations for classified DoD networks (Collateral, SCI, SAP). Lead IT ops team, manage SIEM and monitoring tools, perform vulnerability and security assessments, implement RMF/JSIG controls, build SOPs/O&M checklists, support incident response, and maintain virtualization, server, and networking environments.

Maintain and troubleshoot networks and systems (VPNs, routers, switches, LAN/WAN, mainframes). Provide helpdesk support, onboard/offboard users, document network configurations, assist with ERP and Ignition issues, review updates for compliance, and deliver user training and escalation to management.

The System/Network Administrator manages server and client administration, maintains network hardware, troubleshoots issues, and oversees IT infrastructure projects.

The Network Systems Admin will support application teams with infrastructure tasks, including change deployments, incident resolution, and event monitoring.

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.

Provide 24/7 systems administration and incident response for US BICES-X. Administer VMware virtual environments, Windows Server and Microsoft stack (Exchange, SharePoint, SQL), SCCM, AD, and VDI. Implement DISA security policies, develop automation scripts, maintain system documentation, and support infrastructure design, monitoring, and performance tuning.

Provide day-to-day administration and support of secure MS Windows networks within DoD Special Access Programs (SAP/SCI). Maintain servers, firewalls, backups, security monitoring, and network protocols; troubleshoot anomalies; perform maintenance and firmware updates; support A&A and RMF activities; interface with customers and attend planning meetings; support operational tests and provide technical guidance.

Deploy, configure, maintain and monitor enterprise Cisco/Juniper network equipment and cloud firewalls; troubleshoot production network issues; implement security hardening; manage user accounts and VPNs; perform upgrades; support third-party apps; maintain SOPs and network documentation; optimize network performance and monitor availability.

Manage Development, QA, and Production environments for ODS/data warehouse/data mart solutions. Perform ETL design, deployments, Informatica administration, patching, load monitoring/recovery, performance tuning, and coordinate with offshore teams and vendors.

The Network/Systems Administrator will maintain data security, track network requests, provide communication to customers, log contacts, and report activities.

Maintain network identities and provisioning systems: create, update, and disable accounts; configure access and distribution lists; troubleshoot account issues; record special access requests; support network systems staff; and improve provisioning processes. Role covers weekend shifts and one weekday.

Manage and secure enterprise LAN/WAN and mixed-server environments for NASA HQ. Administer routers, switches, firewalls, VPNs, Proxmox clusters, Windows and Linux servers, backups, and desktop support. Ensure compliance with RMF/STIGs, monitor logs/alerts, investigate incidents, and collaborate with security staff. Support IT lifecycle including procurement, deployment, and secure decommissioning.

Provide day-to-day administration and operations of government systems and networks supporting Collateral, SCI, and SAP environments. Install, configure, monitor, and remediate systems using SIEM, vulnerability tools, and COTS/GOTS products. Build O&M checklists, SOPs/TTPs, tailor event rules/reports, participate in incident response, analyze technical risk, and support RMF/authorization processes.

Provide Level 2 escalated support for campus wired and wireless networks, perform routine network hardware/software maintenance, troubleshoot connectivity issues, assist with network security and disaster recovery, maintain inventory and documentation, coordinate with vendors, and mentor Level 1 service desk staff.

The role involves entry-level network administration, including monitoring, troubleshooting, and maintaining network infrastructure and protocols, with a focus on Cisco technologies.

The Network Automation Administrator is responsible for administering the environment, resolving issues, implementing security practices, supporting customers with new systems, and ensuring disaster recovery planning.

Responsible for designing, implementing, optimizing, and maintaining databases supporting network management systems while ensuring high performance, availability, and security.

Provide desktop and endpoint support for staff: provision hardware, install/configure OS and applications, diagnose/repair issues, administer Active Directory/Group Policy/Office365/MDM, maintain asset inventory, procure equipment, and deliver end-user training and documentation.

Provide day-to-day secure IT support for DoD/SAP environments: install, maintain, audit Windows servers and Exchange, manage networking (LAN/WAN/Cisco), firewalls, backups and COMSEC integration, perform troubleshooting, firmware/upgrades, RMF/A&A compliance, and support operational tests and customer-facing IT issues.

Oversees daily operations of network/computer systems, manages provisioning and compliance, mentors technicians, and maintains documentation and security.

Lead and manage the statewide network services team, overseeing LAN/WAN/SD‑WAN, Wi‑Fi, VPN, DNS/DHCP/IPAM, monitoring, incident response, vendor management, modernization roadmaps, security/compliance, budgeting, and cross‑team collaboration to ensure secure, highly available services.

Perform senior-level network and systems administration across Windows, Linux, and Mac platforms. Plan, implement, secure and monitor on-premise and cloud infrastructure; administer backups and disaster recovery; troubleshoot servers, networks, and applications; manage projects, vendor relationships, policies, and IT budgets; provide user support and documentation while maintaining compliance (PCI DSS) and security best practices.

Diagnose and troubleshoot advanced server, networking, virtualization, email, and cloud services; manage escalations with internal teams and vendors; administer Windows Server, Active Directory, Group Policy, file services (DFS, Folder Redirection, OneDrive), DHCP/DNS, Exchange/O365 and Cisco networking; maintain Hyper-V/VMware hosts; automate tasks using PowerShell, batch, and Kaseya scripting.