Network Engineer - L3

Job Description

Job Description: Network Engineer – L3 (Onsite)

Location: Warsaw, IN

Type: Full-time / Onsite

Role Overview

As a Senior L3 Network Engineer, you will be responsible for the design, implementation, and high-level support of a complex enterprise network environment. You will serve as the highest escalation point for technical issues, ensuring the stability, security, and optimization of data center and cloud-managed infrastructures. This role requires deep expertise in Cisco ACI, Citrix NetScaler, and Meraki ecosystems.

Key Responsibilities

• Infrastructure Support: Provide expert-level (L3) troubleshooting and management for global enterprise network operations.
• Strong expertise and Hands-on experience with ACI.
• Data Centre & Switching: Configure and maintain Cisco Nexus platforms and manage Cisco ACI fabric, including the definition and troubleshooting of fabric policies and tenant configurations.
• Application Delivery: Manage Citrix NetScaler ADC for load balancing, GSLB, SSL offloading, and traffic optimization; utilize Citrix ADM Dashboard for centralized monitoring.
• Wireless & Edge: Design and optimize wireless performance via Cisco WLC and manage cloud-based networking (VPN, Firewalls, SD-WAN) through Cisco Meraki.
• Network Security: Implement and maintain management and web security using Cisco ISE and Cisco Umbrella.
• Operational Management: Administer IPAM (Men & Mice) and oversee the lifecycle of SSL certificates via Digicert and CSC.
• Monitoring & Tooling: Optimize network visibility using SolarWinds and Grafana, including alert suppression and performance dashboarding.
• Vendor Coordination: Act as the primary technical point of contact for major telecom providers (Zayo, Lumen, AT&T, Granite) to resolve WAN and circuit issues.
• Security Protocols: Ensure secure administrative access using Putty, Jump Servers, and FTP protocols.

Required Technical Expertise

• Cisco ACI: Advanced knowledge of APIC controllers, leaf-and-spine architecture, and policy-driven fabric deployment.
• Citrix NetScaler ADC: Hands-on experience with high-availability configurations, Content Switching, and Rewrite/Responder policies.
• Cisco Meraki: Proficiency in managing MX Firewalls, MS Switches, and MR Access Points via the Meraki Dashboard.
• Routing & Switching: Expert-level mastery of Cisco Nexus (9K/7K/5K) and Catalyst platforms.

Qualifications & Soft Skills

• Experience: 10+ years of progressive experience in network engineering within large-scale environments.
• Analytical Thinking: Exceptional root-cause analysis skills for resolving complex, multi-vendor network outages.
• Communication: Ability to document high-level designs and present technical solutions to stakeholders and leadership.
• Collaboration: Proven track record of working effectively in high-pressure, mission-critical environments.

Disclaimer

HCL is an equal opportunity employer, committed to providing equal employment opportunities to all applicants and employees regardless of , , , , , , , , physical or genetic information, military or veteran status, or any other protected classification, in accordance with federal, state, and/or local law. Should any applicant have concerns about discrimination in the hiring process, they should provide a detailed report of those concerns to secure@hcltech.com for investigation.

Compensation and Benefits

A candidate’s pay within the range will depend on their work location, skills, experience, education, and other factors permitted by law. This role may also be eligible for performance-based bonuses subject to company policies. In addition, this role is eligible for the following benefits subject to company policies: medical, dental, vision, pharmacy, life, accidental death & dismemberment, and insurance; employee assistance program; 401(k) retirement plan; 10 days of paid time off per year (some positions are eligible for need-based leave with no designated number of leave days per year); and 10 paid holidays per year.