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

1. Cisco and Arista Switching & Routing

2. BGP / EVPN / VXLAN

3. 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.