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Senior Firewall Security Engineer

Intone Networks Inc

 

Iselin, NJ 08830, USA

Posted On: 8 days ago
Experience: 10+ years
Availability: Remote
Openings: 1
Category: Network Firewall Security Engineer
Tenure: No Preference/Any
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Description

This role focuses on advanced firewall security administration, troubleshooting, and optimization using Cisco Secure Firepower technologies.

Responsibilities

  • Administer and maintain Cisco Secure Firepower Firewalls in production environments
  • Perform advanced troubleshooting across firewall infrastructure, including intrusion prevention and file policy analysis
  • Configure and troubleshoot Snort 3 policies for intrusion detection and prevention (IPS) and file-based security controls
  • Analyze traffic flow and conduct packet-level inspection to diagnose network security issues
  • Configure and troubleshoot Network Address Translation (NAT) and Port Address Translation (PAT) settings
  • Manage Security Intelligence policies to control network access based on threat intelligence
  • Review and analyze access control rules to ensure proper security posture
  • Manage Cisco Secure Firewall Management Center (FMC) operations and policy deployment
  • Troubleshoot and support VPN technologies, particularly Cisco AnyConnect implementations
  • Support secure network routing and optimization across multiple OSI layers

Qualifications

  • Required
    • Strong hands-on experience with Cisco Secure Firepower Firewalls
    • Advanced troubleshooting experience with Snort 3 (IPS and File Policies)
    • Demonstrated expertise in traffic flow analysis and packet inspection
    • Proficiency in NAT/PAT configuration and troubleshooting
    • Experience with Security Intelligence policies
    • Ability to analyze access control rules and optimize firewall policies
    • Knowledge of OSI Layers 1–7, with particular emphasis on Layers 1–4
    • Solid operational experience with Cisco Secure Firewall Management Center (FMC)
    • Proven experience troubleshooting VPN technologies, including Cisco AnyConnect
    • Strong understanding of routing concepts and protocols in secured network environments

Education

Any Graduate

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