Senior Network Engineer – Routing & Switching Specialist
Comgent
contract
Posted on:
Location Type: Hybrid
Location: London • United Kingdom
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Job Level
About the role
- Audit and document the existing network estate (~1,000 devices across both banking entities)
- Identify and remediate non-standard routing configurations, including atypical EIGRP deployments
- Define and implement standardised change categories, change risk classifications, and change management templates
- Support the transition from hybrid ACI to target-state architecture
- Develop network documentation and operational runbooks
- Provide detailed input into the network baseline assessment
- Act as a subject matter expert during change approval board (CAB) reviews
- Work with managed service providers to ensure designs and standards are followed during implementation.
Requirements
- Expert-level Cisco Routing & Switching: IOS, IOS-XE, NX-OS
- Hands-on experience with Cisco Nexus platforms (2K, 5K, 7K, 9K)
- Deep routing protocol knowledge: EIGRP, OSPF, BGP — including troubleshooting of complex or misconfigured environments
- Familiarity with Cisco ACI and spine-leaf fabric architectures
- Proficiency with network documentation tools and diagramming
- Experience working in dual-stack (legacy + modern) environments
- Understanding of network security segmentation and firewall integration
- Advantageous CCIE or CCNP (Routing & Switching or Data Centre)
- Automation/scripting experience (Python, Ansible, or similar)
- Experience in financial services or similarly regulated environments
Applicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills & Tools
Cisco RoutingCisco SwitchingIOSIOS-XENX-OSEIGRPOSPFBGPCisco ACIPython
Soft Skills
documentationchange managementtroubleshootingsubject matter expertcollaboration
Certifications
CCIECCNP