Senior Network Engineer - Data Center & Incident Lead

HCLTech; Fremont (CA); Hybrid; USD 140,000 - 180,000; Full time

Benefits offered by this job

Medical, Dental, Vision coverage

401(k) retirement plan

Paid time off and holidays

Job summary

HCLTech is seeking a Senior Network Support Engineer (L3) to lead advanced troubleshooting, documentation, and optimization across data center and enterprise networks. You will resolve complex issues, coordinate with vendors, and drive improvements with a focus on security and performance.

The role offers growth, mentorship, and opportunities to work on cutting-edge networking projects with flexible remote options. Prior CCNP/CCIE credentials and hands-on Nexus/Arista exposure are highly valued.

Qualifications

• CCNP and CCIE with lab required.
• Proven expertise in routing, switching, and convergence technologies (QOS, BGP, OSPF, EIGRP, HSRP, STP, VRRP).
• Hands-on experience with Nexus 7k/9k, Cisco 6500 series, ASR/ISR routers, Cisco WAAS, and ACS.
• Proficiency with Aruba Wireless, Nexus, Brocade, Arista, HP/Extreme switches, and load balancers (Riverbed, Netscaler).
• Strong knowledge of network monitoring and diagnostic tools (Solarwinds, NetFlow, packet captures).
• Experience with Visio for documentation.
• Familiarity with DC, DNS/DHCP, VPN, and client connectivity.

Responsibilities

• Lead troubleshooting for complex network issues escalated from L1/L2 within SLA commitments.
• Create and maintain detailed documentation including SOPs, processes, and root-cause analyses.
• Collaborate with vendors for bug fixes, firmware upgrades, and hardware/software enhancements.
• Drive P1/P2 incident bridge calls and coordinate cross-functional teams for swift recovery.
• Monitor network performance, capacity planning, and implement tuning strategies.
• Identify infrastructure gaps and provide strategic recommendations for improvements.
• Support network architecture design, implementation, and maintenance for large-scale data centers and WAN/LAN environments.
• Maintain expertise on network security features and configurations.

Skills

CCNP

CCIE

Routing & Switching

BGP/OSPF/HSRP

Nexus 7k/9k

Aruba Wireless

Network security

Documentation

Vendor coordination

Tools

Solarwinds

NetFlow

Visio

Packet captures

ServiceNow

Riverbed/Netscaler

Job description

HCLTech is seeking a Senior Network Support Engineer (L3) to lead advanced troubleshooting, documentation, and optimization across data center and enterprise networks. You will resolve complex issues, coordinate with vendors, and drive improvements with a focus on security and performance.

The role offers growth, mentorship, and opportunities to work on cutting-edge networking projects with flexible remote options. Prior CCNP/CCIE credentials and hands-on Nexus/Arista exposure are highly valued.