We are partnering with a large enterprise operating critical network infrastructure and are seeking an experienced Senior Network Engineer (L3 SME) to join a long-term managed services engagement.
This role will suit someone who enjoys solving complex network challenges, acting as the senior escalation point for critical incidents, and ensuring the stability and performance of large-scale Cisco environments.
About the Role
As the Senior Network Engineer, you will serve as the technical SME and L3 escalation point for complex routing and switching issues. You will play a key role in incident resolution, root cause analysis, operational governance, network compliance, and mentoring junior engineers.
Key responsibilities include:
Acting as the L3 escalation point for complex network incidents
Troubleshooting routing and switching issues across large-scale settings
Performing root cause analysis (RCA) for major incidents
Supporting network stability, resilience and operational excellence
Reviewing and approving network changes
Maintaining network standards and configuration compliance
Working closely with security, load balancing and infrastructure teams
Mentoring and supporting engineers within the wider operations team
Contributing to service improvement initiatives and operational reporting
What We're Looking For
Essential Experience
8+ years' experience as a Network Engineer within enterprise, managed services or critical infrastructure workplace
Experience supporting Operational Technology (OT), industrial, utilities, mining, energy, transport, manufacturing or critical infrastructure environments
Robust Cisco routing and switching expertise
Experience acting as an L3 escalation point for complex incidents
Advanced troubleshooting capabilities across Layer 2 and Layer 3 technologies
Experience managing major incidents and service restoration activities
Strong understanding of change management and operational governance
Technical Skills
Cisco Catalyst Switching
BGP
OSPF
EIGRP
STP / RSTP / MST
HSRP / VRRP
Network monitoring and compliance tools
ServiceNow or similar ITSM platforms
Certifications
CCNP Enterprise or equivalent
CCIE highly regarded
Highly Desirable
Managed services experience
Experience within highly available production environments