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Senior Network Engineer; IR35, Cisco, Arista, Palo Alto
Job in
Greater London, London, Greater London, W1B, England, UK
Listed on 2026-10-15
Listing for:
Xcede
Full Time
position Listed on 2026-10-15
Job specializations:
-
IT/Tech
Network Engineer, Systems Engineer, Cloud Computing: Infrastructure & Operations, Cybersecurity
Job Description & How to Apply Below
Location: Greater London
A global financial markets firm needs a Senior Network Engineer to support latency-sensitive trading infrastructure across on-prem and cloud environments. The role covers customer connectivity, complex troubleshooting, and building the automation and observability tooling that keeps critical systems running. You'll work across on-prem and cloud, with real ownership over production network infrastructure.
Responsibilities:- Engineer and support customer connectivity across on-prem and cloud, including circuit provisioning, AWS networking, and VPN
- Configure and deploy production changes across routing, firewall, and cloud network infrastructure
- Troubleshoot complex environments (BGP, OSPF, MPLS, multicast, HSRP)
- Provide real-time monitoring and incident response for global network infrastructure
- Lead escalations and advanced troubleshooting across network, cloud, and infrastructure domains
- Build automation, monitoring, and observability tooling via scripting and API integrations (Python)
- Perform deep packet analysis and contribute to root cause investigations
- 5+ years' network engineering experience across Cisco, Arista, and Palo Alto
- Strong fundamentals in routing, switching, and firewall technologies (BGP, OSPF, Multicast)
- Packet analysis experience (tcpdump, Wireshark, tshark)
- Scripting or API-driven automation experience (Python)
Initial 6-month contract, with a significant pipeline of work in 2027.
Position Requirements
10+ Years
work experience
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