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# Senior Firewall Security Engineer - Cisco Firepower

- **Company:** Intone Networks
- **Location:** United States (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Application Firewall, Network Address Translation, Intrusion Detection and Prevention, OSI Models, Network Security, Routing, Remote Access Technology, Firewall Policy Management, Security Information and Event Management, Cisco Anyconnect, Snort (Software), Firewalls (Computer Science), Firepower, Firewall Services Module, Cisco
- **Published:** November 8, 2026
- **Apply:** https://www.careerbuilder.com/job-details/senior-firewall-security-engineer-cisco-firepower--01b38f36-ccfa-4a77-92a8-65794d18c3b4

## About the Role

Firewalls, Cisco Network Systems, Identify Issues, Cisco Network Systems, Rural Contracts, Firewalls, Firewall Administration, Production Systems, Intrusion Prevention Systems, Policy Analysis, * 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

## Description

We are seeking a Senior Firewall Security Engineer for a 12-month remote contract position based in the United States. 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