Senior Network Engineer - Banking & Finance

Key Responsibilities

• Plan and execute migration of network infrastructure from on-prem Cisco environments to AWS
• Design and document AWS network architecture (VPCs, routing, segmentation, security groups)
• Map existing Cisco configurations to AWS services (VPC, Transit Gateway, Direct Connect, NACLs)
• Configure and optimize AWS networking components (subnets, route tables, load balancers)
• Implement network security best practices (encryption, firewalls, DDoS protection)
• Troubleshoot issues, optimize performance, and ensure post-migration stability
• Produce technical documentation and runbooks

Required Skills/Qualifications

• 6+ years’ experience with Cisco/Juniper networking
• Strong routing & switching experience
• Solid experience with BGP, OSPF, STP, IPsec, and WAN technologies (e.g. MPLS)
• Hands‑on experience with Cisco (ASA, Nexus) and Juniper (SRX, EX) devices
• Strong troubleshooting and packet analysis skills
• Experience with AWS networking
• Familiarity with Terraform and infrastructure automation tools

Location

• Hybrid
• Central London (3x per week)

Salary

• Up to £80,000
• Depending on experience

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