Network Security Engineer L3

Vantage Point Consulting

  • Alpharetta, GA
  • 5 days ago

    Highlights

    Implement Cisco Catalyst Center (DNA Center) for network automation, monitoring, and lifecycle management. Implement and manage Cisco Wireless networks, including controllers, access points, and security policies.

    Numbers & Facts

    LocationAlpharetta, GA

    Description

    Key Responsibilities

    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.

    Required Skills

    • 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

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