Marsh

Actively Hiring

L3 Network Operations Engineer

Cluj-Napoca, Romania

Full time

Role Overview

We are seeking a talented individual to join our Network Operations team at Marsh as an L3 Network Operations Engineer, acting as a senior escalation point for complex network incidents, service issues, and network changes.

About Marsh

Marsh is a global leader in insurance broking and innovative risk management solutions, helping clients succeed by defining, designing, and delivering innovative industry-specific solutions.

Key Responsibilities

Provide L3 escalation support for complex network incidents and major service disruptions.
Lead technical triage, fault isolation, remediation, and service restoration activities.
Troubleshoot complex issues across LAN, WAN, branch connectivity, routing, switching, WiFi, and on-premises network infrastructure.
Configure, support, and troubleshoot Cisco and Arista routers and switches.
Deliver network changes safely and effectively through ITIL-aligned governance.

Requirements & Eligibility

Proven experience in L3 Network Operations, senior network support, or a similar role within an enterprise, NOC, or infrastructure operations environment.
Strong hands-on troubleshooting experience across LAN and WAN connectivity, branch networks, routing and switching.
Solid experience with Cisco multilayer switching, including Layer 2 and Layer 3 troubleshooting, VLANs and trunking, Spanning Tree, SVIs, and inter-VLAN routing.
Professional experience with Cisco and/or Arista routers and switches.
Strong understanding of core networking concepts and protocols, including TCP/IP, DNS, DHCP, HTTP, HTTPS, and TLS.

Required Skills & Tech

CiscoAristaTCP/IPDNSDHCPLANWANWiFiBGPOSPFITIL