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HCLTech · 1 day ago

Network Engineer – L3

Warsaw, IN

Full-time

Onsite

Senior Level, Lead/Staff

10+ years exp

HCLTech is a leading technology company, and they are seeking a Senior L3 Network Engineer to design, implement, and support complex enterprise network environments. This role involves high-level troubleshooting and management of global network operations, ensuring stability and security across data center and cloud infrastructures.

Information and Communications Technology (ICT)IT ManagementOutsourcingSoftwareTelecommunications

H1B Sponsor Likely

Responsibilities

Provide expert-level (L3) troubleshooting and management for global enterprise network operations

Strong expertise and Hands-on experience with ACI

Configure and maintain Cisco Nexus platforms and manage Cisco ACI fabric, including the definition and troubleshooting of fabric policies and tenant configurations

Manage Citrix NetScaler ADC for load balancing, GSLB, SSL offloading, and traffic optimization; utilize Citrix ADM Dashboard for centralized monitoring

Design and optimize wireless performance via Cisco WLC and manage cloud-based networking (VPN, Firewalls, SD-WAN) through Cisco Meraki

Implement and maintain identity management and web security using Cisco ISE and Cisco Umbrella

Administer IPAM (Men & Mice) and oversee the lifecycle of SSL certificates via Digicert and CSC

Optimize network visibility using SolarWinds and Grafana, including alert suppression and performance dashboarding

Act as the primary technical point of contact for major telecom providers (Zayo, Lumen, AT&T, Granite) to resolve WAN and circuit issues

Ensure secure administrative access using Putty, Jump Servers, and FTP protocols

Qualification

Cisco ACICitrix NetScalerCisco MerakiRouting & SwitchingNetwork SecurityAnalytical ThinkingCommunicationCollaboration

Required

10+ years of progressive experience in network engineering within large-scale environments

Exceptional root-cause analysis skills for resolving complex, multi-vendor network outages

Ability to document high-level designs and present technical solutions to stakeholders and leadership

Proven track record of working effectively in high-pressure, mission-critical environments

Advanced knowledge of APIC controllers, leaf-and-spine architecture, and policy-driven fabric deployment

Hands-on experience with high-availability configurations, Content Switching, and Rewrite/Responder policies

Proficiency in managing MX Firewalls, MS Switches, and MR Access Points via the Meraki Dashboard

Expert-level mastery of Cisco Nexus (9K/7K/5K) and Catalyst platforms