L3 Support Engineer

4 days ago

Dallas, Texas, United States Inherent Technologies Full time $90,000 - $120,000 per year

Position: L3 Support Engineer (Cisco WSA)
Location:
Frisco, TX
*Day 1 Onsite
NEED SOMEONE WITH EXP IN CISCO WEB SECURE APPLICANCE / PROXY
Position Summary
We are seeking an experienced
L3 Support Engineer
specializing in
Cisco Web Security Appliance (WSA)
to join our network security operations team. The ideal candidate will provide advanced support, troubleshooting, implementation, and maintenance of secure web gateway services, ensuring business continuity and protection against web threats.

Key Responsibilities

  • Provide L3 operational support for Cisco WSA appliances in a global enterprise environment.
  • Should have expertise to deploy WSA appliances from scratch as well as to configure security policy and other features.
  • Monitor, manage, and maintain WSA appliances, ensuring high availability and optimal performance.
  • Handle advanced incident management, problem resolution, and root cause analysis for WSA-related issues.
  • Configure and manage:
  • URL filtering policies, access controls, and user authentication
  • HTTPS decryption policies
  • Application and content filtering rules
  • Malware defense and data security policies
  • Perform firmware upgrades, patches, and hotfixes on WSA devices.
  • Collaborate with SOC, firewall, and proxy teams for security incident investigations.
  • Implement changes following ITIL change management processes.
  • Maintain documentation for policies, procedures, configurations, and troubleshooting guides.
  • Work with vendor (Cisco TAC) for escalations and advanced troubleshooting.
  • Contribute to automation and optimization of web security operations.

Required Skills & Experience

  • 8+ years of hands-on experience in IT security with at least 4 years on Cisco WSA (L3 level).
  • Strong expertise in:
  • Web Security Appliance (WSA) administration and troubleshooting
  • URL filtering, DLP, malware scanning, HTTPS decryption
  • LDAP/AD integration, user/group-based policy enforcement
  • Good understanding of network protocols (HTTP, HTTPS, DNS, TCP/IP).
  • Familiar with email security (ESA) is a plus.

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