Senior Network Engineer

Salary: £124,800 - 128,960 per year

Requirements:

• 8-10 years Network Engineering experience at Senior/L3 level
• Strong Cisco and Arista routing and switching experience
• Excellent knowledge of OSPF, VLANs, routing, and ACLs
• Experience supporting IoT connectivity from a network infrastructure perspective
• Strong multicast configuration and troubleshooting experience
• Advanced network troubleshooting experience, including packet capture and root cause analysis
• Recent experience working within Financial Services
• Strong understanding of CAB/change control processes
• CCNP required; CCIE highly desirable
• Excellent communication and stakeholder management skills
• Availability to support Saturday network change windows

Responsibilities:

• Join a major network infrastructure programme supporting IoT deployments within a Financial Services environment
• Provide senior-level network engineering support for routing, switching, and connectivity issues
• Configure and troubleshoot multicast, OSPF, VLANs, routing, and ACLs
• Support network troubleshooting activities, including packet capture and root cause analysis
• Work within CAB and change control processes
• Support scheduled change windows, including Saturday work as required

Technologies:

• Cisco
• IoT
• Support
• Network
• Windows

More:

We are hiring on a 12-month contract for a Senior Network Engineer (L3) in a hybrid London role, with three days per week on site and some Saturday work required for scheduled change windows. This is a hands-on opportunity to join a major network infrastructure programme supporting IoT deployments in a Financial Services environment. The rate is £60-£62 per hour, deemed inside IR35 via umbrella, and the start date is ASAP following completion of background checks.

last updated 38 week of 2026