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# Network Security Engineer L3

- **Company:** Vantage Point
- **Location:** Woodbridge Township, NJ, United States
- **Contract:** Permanent contract
- **Skills:** Access Network, Catalyst (Software), Complex Networks, Computer Networks, Data Centers, Network Address Translation, Disaster Recovery, Intrusion Detection and Prevention, Virtual Private Networks (VPN), Network Security, Network Architecture, Network Monitoring, Network Segmentation, Software Vulnerability Management, Wide Area Networks, Wireless Access Point, Wireless Networks, Cloud Platform System, System Availability, Firewalls (Computer Science), Build Management, Network Support, Enterprise Integration, Operational Systems, Firewall Services Module, Open Network Automation Platform, Cisco Switches, Cisco
- **Published:** November 4, 2026
- **Apply:** https://www.thejobnetwork.com/job/fa2afa36-f4dd-4c7d-95f0-0d5e45f15700/network-security-engineer-l

## About the Role

* Cisco Switching (Catalyst)
 * Cisco Wireless
 * Cisco SD-WAN
 * Palo Alto Firewalls
 * Cisco Catalyst Center (DNA Center)
 * Enterprise Network Security
 * LAN/WAN Architecture & Design
 * Network Segmentation
 * Manufacturing Environment Experience
 * Operational Technology (OT) Network Experience

## Description

Design & Architecture

 * Design and build secure enterprise network infrastructure across manufacturing and corporate environments.
 * Design Cisco-based LAN, WAN, Wireless, and SD-WAN solutions to support business and operational requirements.
 * Develop network segmentation strategies for IT and Operational Technology (OT) environments.
 * Design secure connectivity solutions between manufacturing sites, data centers, and cloud environments.
 * Create high-availability and disaster recovery network architectures.
 * Develop network standards, templates, and design documentation.

Build & Implementation

 * Build, configure, and deploy Cisco Switching infrastructure (Catalyst platforms).
 * Implement and manage Cisco Wireless networks, including controllers, access points, and security policies.
 * Deploy and support Cisco SD-WAN solutions across multiple locations.
 * Configure and maintain Palo Alto Firewalls, security policies, NAT, VPNs, and threat prevention features.
 * Implement Cisco Catalyst Center (DNA Center) for network automation, monitoring, and lifecycle management.
 * Execute network refresh, migration, and transformation initiatives.

Operational Technology (OT) Networking

 * Design and support OT network infrastructure within manufacturing and industrial environments.
 * Implement secure IT/OT network integration while maintaining operational security and compliance.
 * Support industrial network segmentation and access controls.
 * Collaborate with plant operations teams to ensure high availability of manufacturing systems.

Security & Compliance

 * Design and implement network security controls and best practices.
 * Manage firewall policies, network access controls, and security monitoring.
 * Support vulnerability remediation and network hardening initiatives.
 * Ensure compliance with organizational and industry security standards.

Operations & Support

 * Provide Level 3 support for complex network incidents and problem management.
 * Monitor network performance, capacity, and availability.
 * Perform root cause analysis and implement corrective actions.
 * Support change management, maintenance activities, and network upgrades.
 * Maintain network documentation, diagrams, and operational procedures.

Collaboration & Governance

 * Work closely with Infrastructure, Security, OT, and Application teams on network projects.
 * Participate in architecture reviews and technology roadmap discussions.
 * Provide technical guidance and mentorship to junior engineers.
 * Support 24x7 operational environments and critical manufacturing operations.