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Network Administrator III

LmcuGrand Rapids, MIMay 24th, 2026
Primary Location: Grand Rapids, MIEmployee Status: Full-Time SalariedEstimated Hours/Week: 38 hours/weekRemote: HybridWho we are:At LMCU, you'll find more than just a job - discover a fulfilling career where your contributions truly matter.Join our talented team at Lake Michigan Credit Union and discover the difference an employer who puts people first can make in your career and life.About This Position: LMCU is looking for a Network Administrator III who will be responsible for the maintenance, troubleshooting, and administration of the organization’s production voice, video, and data network infrastructure. This includes LAN, WAN, VLAN, WLAN, wireless bridging, VoIP, QoS, firewall, telephony systems, telecommunications, DR connectivity, and network security systems. The individual in this position will work closely with members of the IT staff to ensure very high levels of network availability, security and efficiency with 99.9% uptime for LMCU systems.What You’ll Do: Installs, configures, and maintains LANs and WANs, physical and virtual servers, UPS, network cabling, and Ethernet networks allowing for optimal operationPerforms network address assignmentPerforms Cisco hardware upgrades and maintenanceConfigures Cisco switches, routers, firewalls, and access pointsAssigns routing protocols and routing table configurationDesigns WAN and LAN infrastructure layoutsDesigns and configures network security (perimeter and edge firewalls)Assists in developing system strategies and policiesMonitors and maintains firewalls and intrusion detection systemsManage Cisco VoIP phone systemDesigns and implements IP telephony solutionsPerforms as backup and high-level resource for Desktop Support TechniciansImplements network and infrastructure related projectsAssist with on-call for network outagesConfigures and manages network monitoring toolsAddresses end-user help requests as necessary through ticketing systemsTrouble-shoots higher-level errors and issuesWhat You’ll Bring: Five or more years of similar or related experience, including preparatory experience. Experience with the following is highly preferred: Vendor (Cisco, F5), Layer 2 and 3, BGP, load balancing traffic and engineering for automatic failover, multiple methods for equal-cost load balancing, routing policy to manipulate BGP attributes, and flow analysis. Microsoft Windows Server, MS Exchange, and Active Directory/GPO operations including hardening strategies and techniques. Firewalls, VPN,SSL remote access, LAN/WLAN configuration and maintenance. Writing and using scripting tools for automated deployment of system changes and software applications. Organizing and/or managing projects and producing documentation for all staff levels including non-technical staff. What you’ll get: All Employees: weekly pay and retirement savings options.Full Time Employees: comprehensive health coverage including medical (with prescription), dental, vision, HSA match, paid parental leave, and tuition reimbursement.To see a full list of our benefit offerings, check out this helpful guide!Have additional questions about the role? Email the Talent Acquisition Team at: Careers@lmcu.org.If you lack access to the internet or require an accommodation in the application process, please send your resume via mail to 5664 Prairie Creek Drive, Caledonia, MI 49316.LMCU is an Equal Opportunity Employer