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# Network Security Engineer

- **Company:** Cornerstone Barricades
- **Location:** Chicago, IL, United States (Remote available)
- **Experience:** Expert
- **Salary:** $80,000.0 - $92,000.0
- **Contract:** Permanent contract
- **Skills:** Complex Networks, System Configuration, Distributed Systems, Network Security, Log Analysis, Wide Area Networks, Transport Layer Security, Identity Services Engine, BIG-IP Local Traffic Manager (LTM), Firewalls (Computer Science), Palo Alto Networks, Fortinet, BIG-IP Access Policy Manager (APM), Firepower, Big Ip, Cisco
- **Published:** August 28, 2026
- **Apply:** https://npousa.betterteam.com/senior-network-security-engineer-2/apply

## About the Role

Fundamental Technical Requirements (Must-Have) The candidate must demonstrate practical, in-depth, hands-on experience with the following technologies:
Palo Alto Networks:

 * Advanced configuration and management of NGFW (PA Series).
 * Solid experience with Panorama for centralized management.
 * Proven experience with SASE solutions (Prisma Access) and GlobalProtect.

Fortinet:

 * Advanced management of FortiGate (including VDOM, SD-WAN, SSL Inspection).
 * Experience with the wider Fortinet ecosystem (FortiManager, FortiAnalyzer).

Cisco Security:

 * Experience with Cisco Security solutions (Firepower/FTD, ASA).
 * Knowledge of Cisco ISE (Identity Services Engine) and TrustSec architectures is a strong plus.

F5 Networks:

 * Implementation and management of F5 BIG-IP solutions.
 * Strong configuration and troubleshooting skills on LTM (Local Traffic Manager) and/or APM (Access Policy Manager) / AWAF modules.

Soft Skills & Additional Requirements:

 * Minimum of 5+ years of experience in Network Security Engineering roles.
 * Excellent troubleshooting and problem-solving skills under pressure.

Preferred Certifications (Nice-to-Have):

 * Palo Alto: PCNSE (Palo Alto Networks Certified Network Security Engineer).
 * Fortinet: NSE 4 / NSE 7.
 * Cisco: CCNP Security or CCIE Security.
 * F5: F5 Certified Administrator (F5-CA) or Technology Specialist (F5-CTS).

## Description

We are looking for a highly qualified Senior Network Security Engineer to join our Network & Security Business Unit. The professional will be responsible for the design, implementation, maintenance, and troubleshooting of complex network security infrastructures.

The ideal candidate has deep, vertical expertise with leading security vendors (Fortinet, Palo Alto Networks, Cisco, F5) and a proven track record of managing modern architectures, including SASE solutions., * Design and manage security architectures based on Next-Generation Firewalls (NGFW).

 * Implement and manage SASE (Secure Access Service Edge) solutions for distributed environments.
 * Perform configuration, policy management, and advanced troubleshooting on multi-vendor equipment.
 * Manage perimeter and internal security within Enterprise environments.
 * Conduct log analysis, incident management, and system hardening.
 * Provide technical mentoring for junior team members (optional, if required).


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