Senior Network Administrator

SchoolsFirst Federal Credit Union

. Administer, configure, install, provision, monitor, and troubleshoot network infrastructure systems .

Posted 9/18/2026full-timeTustin • California • United StatesSenior💰 $42 - $64 per hourWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in administering and troubleshooting network infrastructure systems, with a strong focus on Cisco technologies and network monitoring. Proficient in developing documentation and standards while ensuring compliance with regulatory requirements.

Highest-signal resume keywords

Cisco CCNA Routing And SwitchingNetwork Infrastructure ExperienceSD-WAN KnowledgePython And Ansible ProficiencyNetwork Monitoring Applications

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

RoutingSwitchingLAN/WANTCP/IPOSIVLANsNATQoSDHCPDNS

Soft Skills

Incident ManagementProblem SolvingTeam CoordinationCommunication

Tools & Technologies

Live ActionThousand EyesSolarwindsF5-CAAruba Wireless

Certifications & Qualifications

Cisco CCNA WirelessCisco CCNA SecurityACMAACCACCSA

Industry Keywords

Network OperationsKPI ReportingRegulatory ComplianceBranch ConnectivityData Center Standards

Tech Stack

Tools & technologies

AnsibleDNSITSMPythonSwitchingTCP/IP

About the role

Key responsibilities & impact

Administer, configure, install, provision, monitor, and troubleshoot network infrastructure systems
Support enterprise Cisco network infrastructure, including routing and switching, wireless networking, SD-WAN, network monitoring, branch/ATM connectivity, and network operations
Install, configure, maintain, patch, upgrade, and troubleshoot network systems and related infrastructure
Develop and maintain configuration standards, operating procedures, documentation, runbooks, and process improvements
Coordinate with vendors for technical support and upgrades
Monitor network health, availability, alerts, logs, performance, capacity, and system integrity; provide KPI and metrics reporting
Respond to incidents, problems, service requests, and escalations; monitor ITSM queues and prioritize resolution
Lead root cause analysis efforts for major incidents
Act as an escalation point for complex network issues
Coordinate with team members, vendors, engineering teams, and service stakeholders for support, upgrades, maintenance, and project work
Create, change, and delete user accounts per request
Provide assistance for support cases escalated by Network Administrators I & II
Conduct after-hours maintenance and participate in the on-call rotation supporting the production environment 24x7x365
Travel to remote office and ATM locations up to 50% of the time
Perform other duties as assigned
Comply with regulatory compliance and assigned training requirements, including applicable BSA regulations

Requirements

What you’ll need

High School Diploma or GED required
Bachelor's Degree in a related field or equivalent years of experience required
3-5 years of relevant network infrastructure experience required
Cisco CCNA Routing and switching required
Cisco CCNA Wireless preferred
Cisco CCNA Security preferred
ACMA/ACCA preferred
CCSA preferred
F5-CA preferred
Participation in the CA DMV pull program may be required depending on assignment
Intermediate knowledge of routing, switching, LAN/WAN, TCP/IP, OSI, VLANs, trunking, NAT, QoS, DHCP, DNS, HSRP, IPsec, EIGRP, OSPF, and BGP
Foundational to intermediate knowledge of SD-WAN, branch connectivity, circuit failover, DIA, broadband, MPLS, cellular connectivity, and enterprise network monitoring
Foundational to intermediate knowledge of Python and Ansible
Foundational to intermediate knowledge of monitoring applications: Live Action, Thousand Eyes, Solarwinds, and other products
Foundational to intermediate knowledge of wireless networking, including Aruba, Cisco Wireless, access point monitoring, client troubleshooting, and RF basics
Foundational to intermediate knowledge of incident, request, task, and change management workflows; device lifecycle support; configuration validation; backup review; and standardization efforts
Foundational to intermediate knowledge of network documentation, configuration checklists, diagrams, branch/ATM support documentation, standard operating procedures, automation, reporting, and operational efficiency practices
Intermediate knowledge of SNMP, logging, packet capture, operating systems, servers, storage, audit/security best practices, and data center standards including cabling, power, fire suppression, and safety