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Network Security Engineer

Job in Oklahoma City, Oklahoma County, Oklahoma, 73116, USA
Listing for: Addison Group
Contract position
Listed on 2026-01-26
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Engineer, Network Security, IT Specialist
Job Description & How to Apply Below

Key Responsibilities

  • End-to-end ownership of the enterprise network and network security environment
  • Administration, configuration, and troubleshooting of Cisco Meraki infrastructure via the Meraki Dashboard
  • Design, configuration, and support of Cisco ASA firewalls and Any Connect VPN solutions
  • Daily administration and advanced troubleshooting of Cisco ISE
    , including 802.1X authentication
    , NAC policies, and switch integration
  • Network performance monitoring, alerting, and capacity management using Solar Winds (nodes, alerts, IPAM, logging, live sessions)
  • Investigate network security threats, vulnerabilities, and anomalous activity in coordination with an outsourced SIEM/SOC vendor
  • Serve as the primary technical contact for firewall, security posture, and threat mitigation with third-party security vendors
  • Configure and support Cisco switches and routers via CLI (including 9300, 2960, 3650 or equivalent)
  • Maintain accurate and up-to-date network and security architecture documentation using Visio
Required Skills & Experience
  • Strong, hands-on experience with Cisco ISE (troubleshooting, policy enforcement, 802.1X required)
  • Cisco ASA firewall and Any Connect VPN expertise
  • Cisco Meraki Dashboard administration (switching, wireless, security appliances)
  • Solar Winds network monitoring experience is mandatory
  • Solid understanding of network security principles, threat detection, and incident response workflows
  • Experience working with SIEM/SOC providers and managing security investigations and tickets

Assignment Type: 6-month contract-to-hire

Benefits:
This position is eligible for medical, dental, vision, and 401(k).

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