Top Network Administrator Jobs

Administer and maintain GLWA’s network, server, storage, voice, radio, printing, and data infrastructure. Responsibilities include provisioning, configuration, upgrades, patching, troubleshooting, security, capacity and performance management, documentation, architecture reviews, infrastructure planning, and staff training. The role requires working assigned shifts, including weekends and holidays, supporting IT equipment and facilities, and maintaining compliance with safety and security procedures.

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

Maintain and secure on-premises and cloud servers, networks, identity, Microsoft 365, backups, telecom, and endpoints for a 24x7 emergency communications environment. Administer virtualization, SANs, firewalls, monitoring, incident response, SOC 2 controls, and create runbooks. Own projects from planning through go-live and provide after-hours callback support for critical issues.

Operate, upgrade, and troubleshoot enterprise routing and switching equipment; perform IOS and firmware upgrades; provision network devices; implement STIGs; draft SOPs; resolve and close network tickets; perform root cause analyses; support implementations, site surveys, and technical refreshes, often independently in remote locations.

The Network Admin will troubleshoot and maintain the network infrastructure, resolve outages and connectivity issues, and communicate with remote locations and AT&T for support.

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

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.

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.

Provide day-to-day support for Collateral, SCI, and SAP environments for DoD customers. Install, maintain, audit, and troubleshoot secure Microsoft Windows networks, Exchange, file servers, firewalls, security monitoring, and backup systems. Perform maintenance, firmware upgrades, tape backups, document systems, attend planning meetings, and offer technical guidance. Support accreditation and security requirements.

Administer, secure, and modernize enterprise Windows and Linux server and network environments. Manage DNS, DHCP, Active Directory/GPOs, patching, OS upgrades, SQL databases, DISA STIG compliance, and automation (PowerShell). Provide technical leadership, troubleshooting, documentation, and coordination with engineers, cybersecurity staff, and stakeholders to support mission-critical operations.

Design and support enterprise firewall/security architecture, deliver strategic firewall services, troubleshoot L4 issues for Check Point and Fortinet (IPsec VPN), collaborate with network architects on frameworks and gap analysis, use FortiManager/FortiAnalyzer, manage Cisco ASA and Juniper SSL/VPN, administer Unix/Linux systems, leverage VMware virtualization, script in Perl/Korn/Bash, and track multiple firewall projects.

Administer and support Menard's enterprise network and security infrastructure across data centers, corporate, distribution, manufacturing, and retail sites. Tasks include routing/switching, firewall-based segmentation, VPNs, authentication, load balancing, monitoring, IPAM, troubleshooting, new system implementation, documentation, and automation using Python. Provide on-call and vendor support and assist design with senior staff.

Provide Level III administration, troubleshooting, and recovery for a large Global Active Directory environment. Configure and diagnose domain infrastructure (DNS, DHCP, ADLDS, ADFS, FIM Sync), Windows servers, RADIUS/NPS, Office365/Azure identity integration, and federation protocols. Support M&A AD activities, perform outage communications, rotate on-call shifts in a 24x7 operations center, and apply remediation procedures for hardware/software failures.

Lead design, implementation, administration, and troubleshooting of enterprise network and computer systems. Support WAN/BAN/LAN/Wi‑Fi, routers, switches, and firewalls. Drive modernization, patching, firmware updates, STIG/system hardening, vulnerability remediation, and compliance activities. Maintain documentation, support audits, and collaborate with engineers and stakeholders.

Provide Level 2 network monitoring, advanced troubleshooting, incident remediation, and configuration support in a 24×7 NOC. Own escalated tickets, document root causes, produce reports, maintain network documentation, and create runbooks for Level 1 training.

The Computer Systems Administrator I will manage and maintain IT infrastructure for DoD environments, ensuring system performance and security. Responsibilities include administering Windows and Linux systems, virtualization, and collaborating with cybersecurity and engineering teams.

Administer, maintain, and monitor LAN/WAN network systems and data circuits for the bank. Install, upgrade, and configure servers, routers, switches, firewalls, wireless APs and SDWAN. Troubleshoot network performance using analysis tools, manage Active Directory user permissions, ensure software license compliance, perform light scripting for automation, document changes, and coordinate repairs with vendors and IT team.

Provide Tier 2 support and maintenance for a Microsoft-based environment (on-premises and O365 Hybrid). Install, configure, troubleshoot servers, workstations, network devices, backups, SharePoint, Skype for Business, Exchange, SCCM, and support SQL/EHR applications while documenting systems and assisting end users and helpdesk for ~350 users.

Support, maintain, and optimize DeltaV control systems and associated network/server infrastructure. Design and test network architectures, perform configuration management, cybersecurity assessments, system patching, virtualization and backup/recovery tasks, troubleshoot hardware/software and network issues, and produce clear technical documentation while supporting customer projects and emergency service requests.

The Network & Systems Administrator supports and maintains network infrastructure and core enterprise systems, ensuring their health and availability while managing various IT services and mentoring junior team members.

The role involves the implementation, administration, and troubleshooting of various CA products and SQL Server, along with Windows and Unix/Linux systems management.

Provide Tier 2-3 Unix/Linux systems administration and troubleshooting for large-scale OSS environments. Ensure system availability and uptime, enforce security policies, manage privileged accounts, collaborate with clients and operational teams, create/update documentation and WLAs, and support a 24/7 on-call rotation with potential off-hours work.

Provide Tier II and Tier IV system and network monitoring, build and modify BSM and Node Manager views/topologies, manage SNMP configurations and site-specific monitoring, monitor and resolve Remedy incidents, manage operator access and critical alerts, and troubleshoot regional systems and assets.

Designs, implements, and supports network and server infrastructure. Manages network devices, patches, firmware, capacity planning, virtualization (VMWare), Windows and Linux servers, security updates, and vendor/system access. Monitors network health, documents changes, partners with teams on IT projects, and maintains compliance and operational reliability.