Network SME / Lead – Switching & Routing

Job Description: Network SME / Lead – Switching & Routing

Location

San Jose / Fremont / Irvine, CA

Work Mode

100% Onsite

Experience

14+ Years

Job Summary

We are seeking an experienced Network SME / Lead to design, implement, manage, and support enterprise network infrastructure. The ideal candidate will have strong expertise in Cisco and Arista switching and routing, enterprise LAN/WAN, wireless networking, BGP, EVPN/VXLAN, and network troubleshooting.

The role requires technical leadership across network operations, infrastructure upgrades, incident management, and network optimization while ensuring high availability, security, and performance.

Top 3 Required Skills

• Cisco and Arista Switching & Routing
• BGP / EVPN / VXLAN
• Enterprise Network Troubleshooting

Key Responsibilities

• Design, implement, and support secure, scalable, and highly available enterprise network solutions.
• Lead network operations and provide technical leadership across Routing, Switching, Wireless, SD-WAN, Proxy Security, DDI, and F5 environments.
• Troubleshoot and resolve complex Layer 2, Layer 3, wireless, and security-related network issues.
• Manage and optimize enterprise LAN/WAN infrastructure to ensure maximum availability and performance.
• Lead major incident management activities and perform root cause analysis for critical outages.
• Design, deploy, and optimize Wireless LAN infrastructure, including RF tuning, capacity planning, and security enhancements.
• Support SD-WAN deployments, migrations, policy configurations, and overlay/underlay troubleshooting.
• Administer Zscaler ZIA and Blue Coat Proxy environments, including SSL inspection, web filtering, and secure internet access controls.
• Manage Infoblox DNS, DHCP, and IPAM services.
• Configure and maintain F5 Load Balancers, SSL certificates, health monitors, virtual servers, and application delivery services.
• Collaborate with application, security, cloud, and infrastructure teams to support business initiatives.
• Drive network standardization, technology refreshes, infrastructure upgrades, and continuous improvement.
• Coordinate with vendors, ISPs, and technical support teams for hardware, software, and service-related escalations.
• Review network capacity and performance trends and recommend proactive improvements.
• Develop and maintain technical documentation, network diagrams, implementation plans, and operational procedures.
• Mentor junior engineers and provide technical guidance during implementations, migrations, and troubleshooting.
• Ensure compliance with security policies, operational standards, and industry best practices.
• Support 24x7 operations and participate in on-call escalation activities as required.

Required Technical Skills

Switching & Routing

• Cisco Catalyst and Nexus switching technologies.
• Arista switching and routing.
• VLAN, STP, VTP, Port-Channels, Stacking, HSRP, and VRRP.
• Routing protocols: OSPF, BGP, EIGRP, Static Routing, and Route Redistribution.
• BGP, EVPN, and VXLAN.

Network Infrastructure & Operations

• Enterprise LAN/WAN infrastructure.
• Network troubleshooting and root cause analysis.
• Manufacturing LAN and wireless networking.
• Wireless LAN design, RF tuning, and capacity planning.
• SD-WAN deployment and management.

Network Security & Services

• Infoblox DNS, DHCP, and IPAM (DDI).
• Zscaler ZIA and Blue Coat Proxy.
• F5 Load Balancers and application delivery services.
• SSL certificates, health monitors, and virtual servers.

Monitoring & Automation

• SolarWinds and ThousandEyes.
• Ansible automation.
• Aruba Central and AirWave.
• Network performance monitoring and capacity planning.

Additional Requirements

• Strong technical leadership and problem-solving skills.
• Excellent communication and stakeholder management abilities.
• Experience leading major network incidents and performing RCAs.
• Ability to mentor junior engineers and coordinate with cross-functional teams.
• Willingness to support 24x7 operations and on-call responsibilities.
• Background verification must be successfully cleared before the start date.