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Senior Network Administrator

Remote / Online - Candidates ideally in
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
Salary/Wage Range or Industry Benchmark: 90000 - 120000 USD Yearly USD 90000.00 120000.00 YEAR
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
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
Core Competencies

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
ATS Optimization Keywords Hard Skills
  • Routing
  • Switching
  • LAN/WAN
  • TCP/IP
  • OSI
  • VLANs
  • DHCP
  • DNS
  • SNMP
  • Packet Capture
Soft Skills
  • Incident Management
  • Problem Solving
  • Collaboration
  • Communication
Certifications & Qualifications
  • Cisco CCNA Wireless
  • Cisco CCNA Security
  • ACMA
  • ACCA
  • CCSA
Industry Keywords
  • Network Operations
  • Network Health Monitoring
  • KPI Reporting
  • Regulatory Compliance
  • Branch Connectivity
Tools & Technologies
  • Live Action
  • Thousand Eyes
  • Solar Winds
  • Cisco Wireless
  • Aruba
#J-18808-Ljbffr
Position Requirements
10+ Years work experience
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