Senior Network Administrator
Remote / Online - Candidates ideally in
Tustin, Orange County, California, 92681, USA
Listed on 2026-08-22
Tustin, Orange County, California, 92681, USA
Listing for:
Jobtailor
Remote/Work from Home
position Listed on 2026-08-22
Job specializations:
-
IT/Tech
Network Engineer, Systems Administrator, Systems Engineer, Cybersecurity
Job Description & How to Apply Below
- 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, engineering teams, service stakeholders, and team members for technical support, upgrades, maintenance, and project work
- 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 for major incidents and act as an escalation point for complex network issues
- Create, change, and delete user accounts per request
- Assist with support cases escalated by Network Administrators I and II
- Conduct after-hours maintenance and participate in the 24x7x365 on-call rotation supporting the production environment
- Travel to remote office and ATM locations up to 50% of the time
- Perform other duties as assigned and comply with regulatory compliance and training requirements
- 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 including Live Action, Thousand Eyes, and Solar Winds
- 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
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 Switching
- Network Infrastructure Experience
- SD-WAN Knowledge
- Python And Ansible Proficiency
- Network Monitoring Applications
- Routing
- Switching
- LAN/WAN
- TCP/IP
- OSI
- VLANs
- DHCP
- DNS
- SNMP
- Packet Capture
- Incident Management
- Problem Solving
- Collaboration
- Communication
- Cisco CCNA Wireless
- Cisco CCNA Security
- ACMA
- ACCA
- CCSA
- Network Operations
- Network Health Monitoring
- KPI Reporting
- Regulatory Compliance
- Branch Connectivity
- Live Action
- Thousand Eyes
- Solar Winds
- Cisco Wireless
- Aruba
Position Requirements
10+ Years
work experience
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