Network Engineer L3- Warsaw, Indiana,(Onsite)

Network Operations & ImplementationLocation: Warsaw, Indiana, USA (100% On-site)Experience Required: 12 Years Role Type: Full-Time | Network Operations & Implementation Team Band/Level: Level 3 (Senior Individual Contributor)Role OverviewWe 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 ResponsibilitiesNetwork 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 & MentoringCreate 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 SkillsTechnology Domain - Required ExpertiseCisco Routing & Switching - Deep expertise in Catalyst 9000, Nexus, ISR/ASR platforms; BGP, OSPF, EIGRP, HSRP/VRRP, STP, VPC, VRF, QoS, multicastEnterprise Wireless - Cisco 9800 & AireOS WLC (5508/5520), CleanAir/RRM, RF design & optimization, 802.11ac/ax, DNA Center/Catalyst CenterCisco Meraki - Full-stack Meraki (MX, MS, MR) dashboard administration, SD-WAN, deployment & troubleshootingSD-WAN - Cisco Catalyst SD-WAN (Viptela) — vManage, vSmart, vBond, vEdge/cEdge; policy, templates, overlay/underlayCitrix NetScaler - ADC/Load Balancer L3/L4 troubleshooting, VIP/vServer config, SSL offload, content switching, GSLB, high availabilityMen & Mice (Micetro / DDI) - DNS, DHCP, IPAM administration and troubleshooting; IP space management and integrationAzure Networking - VNets, VNet Peering, ExpressRoute, Site-to-Site VPN, NSG/UDR, Azure Firewall, Load Balancer, hybrid on-prem integrationDesirable / Value-Add SkillsNetwork 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 preferredCisco SD-WAN Specialist / Meraki Solutions Specialist (ECMS)Citrix Certified (CC-ADC / CCP-AppDS)Microsoft Azure certifications (AZ-700 Azure Network Engineer Associate)Experience & QualificationsMinimum 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 RequirementsStrong 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.