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Senior network engineer (aws)

London
Hamilton Barnes ?
Network engineer
€80,000 a year
Posted: 20 April
Offer description

Salary: Up to £80,000 (depending on experience) THIS IS A PERMANENT OPPORTUNTIY

We are currently supporting a global financial organisation seeking an experienced Senior Network Engineer (AWS) to initially play a key role in the migration of critical applications from a Cisco-based on‑premise environment to AWS. This role focuses on designing, implementing, and optimizing cloud networking solutions to ensure a seamless transition with minimal downtime.


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


Requirements

* 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
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