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Job Description: Network L3 Engineer Network Operations & Implementation

Location: Warsaw, Indiana, USA (100% On-site 5 Days Work From Office) Experience Required: 12 Years Role Type: Full-Time | Network Operations & Implementation Team Band/Level: Level 3 (Senior Individual Contributor)

Role Overview

We are seeking a highly experienced Network L3 Engineer to join our Network Operations and Implementation team supporting a large-scale, global enterprise environment. The ideal candidate will be a hands-on subject matter expert across Cisco Routing & Switching, Enterprise Wireless, Cisco Meraki, SD-WAN, Citrix NetScaler, Men & Mice (DDI), and Azure Networking. This is a senior escalation and implementation role responsible for driving stability, resolving complex incidents, delivering change and project work, and mentoring L1/L2 engineers.

This is a 100% on-site role based in Warsaw, Indiana, requiring physical presence 5 days a week to support datacenter, campus, and manufacturing network infrastructure.

Key Responsibilities

Network Operations (Run)

• Act as the highest-level (L3) escalation point for complex network incidents across LAN, WLAN, WAN, SD-WAN, load balancing, and DDI domains.
• Perform advanced troubleshooting and root cause analysis (RCA) for P1/P2 incidents, ensuring adherence to SLAs and minimizing business impact.
• Lead Major Incident technical bridges, coordinate with vendors (Cisco TAC, Citrix, Microsoft), and drive incidents to resolution and permanent fix.
• Own Problem Management deliverables RCA documentation, known-error database updates, and preventive action implementation.
• Ensure proactive monitoring, capacity management, and health checks across the estate.

Implementation & Change (Build)

• Design, plan, and execute network changes, migrations, and refresh projects following strict change management (Doer Checker) governance.
• Implement and validate configurations for new sites, datacenter fabric, campus, and manufacturing/OT network segments.
• Prepare Method of Procedure (MOP), rollback plans, and post-implementation validation checklists.
• Support automation and standardization initiatives; contribute to template-driven, repeatable deployments.

Governance & Mentoring

• Create and maintain SOPs, runbooks, and knowledge articles to strengthen L1/L2 capability and reduce escalations.
• Mentor and technically guide junior engineers; conduct knowledge transfer (KT) sessions.
• Ensure documentation and audit-readiness for all operational and change activities.

Mandatory Technical Skills

Technology Domain

Required Expertise

Cisco Routing & Switching

Deep expertise in Catalyst 9000, Nexus, ISR/ASR platforms; BGP, OSPF, EIGRP, HSRP/VRRP, STP, VPC, VRF, QoS, multicast

Enterprise Wireless

Cisco 9800 & AireOS WLC (5508/5520), CleanAir/RRM, RF design & optimization, 802.11ac/ax, DNA Center/Catalyst Center

Cisco Meraki

Full-stack Meraki (MX, MS, MR) dashboard administration, SD-WAN, deployment & troubleshooting

SD-WAN

Cisco Catalyst SD-WAN (Viptela) vManage, vSmart, vBond, vEdge/cEdge; policy, templates, overlay/underlay

Citrix NetScaler

ADC/Load Balancer L3/L4 troubleshooting, VIP/vServer config, SSL offload, content switching, GSLB, high availability

Men & Mice (Micetro / DDI)

DNS, DHCP, IPAM administration and troubleshooting; IP space management and integration

Azure Networking

VNets, VNet Peering, ExpressRoute, Site-to-Site VPN, NSG/UDR, Azure Firewall, Load Balancer, hybrid on-prem integration

Desirable / Value-Add Skills

• Network automation exposure Python, Ansible, Terraform, REST APIs, Git/GitHub.
• Exposure to observability/AIOps and monitoring tooling (SolarWinds, ThousandEyes, Netcool, etc.).

Certifications (Preferred)

• CCNP Enterprise / CCIE (Enterprise Infrastructure or Wireless) strongly preferred
• Cisco SD-WAN Specialist / Meraki Solutions Specialist (ECMS)
• Citrix Certified (CC-ADC / CCP-AppDS)
• Microsoft Azure certifications (AZ-700 Azure Network Engineer Associate)

Experience & Qualifications

• Minimum 12+ years of hands-on enterprise network engineering experience, with significant time in a senior L3 operations and implementation capacity.
• Bachelor's degree in Computer Science, Electronics, Telecommunications, or related field (or equivalent experience).
• Proven track record supporting large-scale, global enterprise networks in a 24x7 managed-services or in-house operations model.

Soft Skills & Work Requirements

• Strong analytical, troubleshooting, and problem-solving abilities under pressure.
• Excellent written and verbal communication; able to produce clear documentation and lead technical bridges.
• Ability to work independently, own outcomes, and mentor a team.
• Must be able to work on-site in Warsaw, Indiana, 5 days a week, with flexibility for occasional after-hours change windows or major incident support.

Disclaimer

HCL is an equal opportunity employer, committed to providing equal employment opportunities to all applicants and employees regardless of race, religion, sex, color, age, national origin, pregnancy, sexual orientation, physical disability 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 for investigation.

Compensation and Benefits

A candidate s pay within the range will depend on their 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 disability 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