Senior L3 Network Engineer - Cisco, Palo Alto, SD-WAN, Cloud & OT

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Job Title: Senior L3 Network Engineer Cisco, Palo Alto, SD-WAN, Cloud & OT Location: Durham, NC (Hybrid Minimum 3 days onsite per week_ Local candidates) Duration: 12 months Interview Process: Face to Face interview Position Overview: The client is looking for a highly experienced Senior L3 Network Engineer to provide advanced network engineering and support across enterprise, data center, cloud, manufacturing, and Operational Technology (OT) environments. The ideal candidate will have strong hands-on experience with Cisco networking, Palo Alto firewalls, SD-WAN, cloud networking, network micro-segmentation, OT/industrial networks, BGP, Terraform, and Ansible . Must-Have Skills:

• Network Micro-Segmentation experience, including:
  • Cisco ISE
  • Security Group Tags (SGTs)
  • Private VLANs (PVLANs)
  • Network segmentation / Zero Trust
• OT / Industrial Networking experience with environments containing:
  • PLCs
  • HMIs
  • SCADA
  • MES
  • Manufacturing systems
• Strong BGP routing experience
• Strong overall enterprise network engineering knowledge
• Hands-on experience with Terraform and Ansible
• Strong Cisco and Palo Alto experience
• SD-WAN experience
• Cloud networking experience

Key Responsibilities:

1. Provide L3 network support across enterprise, data center, cloud, and manufacturing environments.
2. Design, deploy, and maintain Cisco routing and switching infrastructure .
3. Manage advanced routing protocols, including:
   • BGP
   • OSPF
   • EIGRP
   • MPLS
   • Route redistribution
4. Configure and support Layer 2/Layer 3 technologies, including:
   • VLANs
   • STP
   • EtherChannel
   • HSRP
   • QoS
5. Administer Palo Alto Strata Next-Generation Firewalls, Panorama, GlobalProtect, NAT, and security policies.
6. Implement Zero Trust, network segmentation, and IT/OT security controls.
7. Design, deploy, and support SD-WAN solutions, including:
   • Cisco SD-WAN / Viptela
   • Palo Alto Prisma SD-WAN
8. Support compute-related projects, including the VMware vSAN project in the U.S. domestic region.
9. Manage WAN connectivity across:
   • MPLS
   • Internet
   • DIA
   • VPN
   • Hybrid network environments
10. Design and support cloud networking across Azure, AWS, and GCP.
11. Implement and maintain:
    • Azure ExpressRoute
    • AWS Direct Connect
    • Cloud VPN
    • Transit Gateway
    • Virtual WAN

1. Support Operational Technology (OT) networks , including manufacturing, SCADA, PLC, and industrial systems.
2. Perform root cause analysis, problem management, and major incident resolution for network outages.
3. Develop network automation using:
   • Terraform
   • Ansible
   • Python
   • Infrastructure-as-Code practices

1. Monitor network performance, security, and availability using enterprise monitoring and security tools.
2. Create technical documentation and contribute to network modernization initiatives.
3. Collaborate with security, cloud, infrastructure, and other technology teams on strategic projects.

Required Technical Skills: Networking

• Cisco Routing & Switching
  • Catalyst
  • Nexus
  • ISR
  • ASR
• BGP
• OSPF
• EIGRP
• MPLS
• VLANs
• STP
• EtherChannel
• HSRP
• QoS

Network Security

• Palo Alto Strata
• Palo Alto Panorama
• GlobalProtect
• NAT
• Security Policies
• Zero Trust
• Network Micro-Segmentation
• Cisco ISE
• SGTs
• PVLANs

SD-WAN

• Cisco SD-WAN / Viptela
• Palo Alto Prisma SD-WAN

Cloud Networking

• Azure
• AWS
• GCP
• ExpressRoute
• Direct Connect
• Cloud VPN
• Transit Gateway
• Virtual WAN

OT / Industrial Networking

• Operational Technology (OT)
• Manufacturing Networks
• SCADA
• PLC
• HMI
• MES
• Industrial Network Security

Automation / Infrastructure as Code

• Terraform
• Ansible
• Python
• Network Automation
• Infrastructure as Code

Monitoring / Troubleshooting

• Wireshark
• SolarWinds
• ThousandEyes
• Splunk

Experience

• 10+ years of enterprise network engineering experience
• Strong experience across:
  • Cisco
  • Palo Alto
  • SD-WAN
  • Cloud Networking
  • Network Security
  • Manufacturing / OT Networks

Certifications

Preferred:

• CCNP
• PCNSE

Dheeraj Galav

Senior Technical Recruiter

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