Lead Cloud Network Engineer AWS - Hedge Fund

Client Server Limited; Greater London; Hybrid; GBP 100,000 - 140,000; Full time

Benefits offered by this job

In-house gym and steam room

Games room and pool tables

Library and free high quality catering

Job summary

Client Server Limited is seeking a senior Lead Cloud Network Engineer in London to spearhead AWS cloud networking design, delivery and security. The role focuses on reliable, scalable architectures across VPCs, Transit Gateway, Direct Connect, VPN and Route 53, with IaC in Terraform and CI/CD automation.

You will mentor engineers, collaborate with Cyber Security and Platform teams, and shape cloud networking standards while enabling secure hybrid connectivity between AWS, Azure and on‑premises

Qualifications

• Experience with designing and delivering AWS cloud networking
• Strong Terraform IaC experience, including modules and state management
• Leadership/mentoring of engineering teams and collaboration with DevOps and security teams

Responsibilities

• Lead the design, delivery and troubleshooting of AWS cloud networking
• Design highly available network architectures across VPCs, Transit Gateway, Direct Connect, VPN, Route 53, security groups and NACLs
• Mentor engineers and collaborate with Cyber Security, DevOps and Platform teams
• Automate network provisioning and change management using Terraform and CI/CD pipelines

Skills

AWS networking

Terraform

CI/CD

Network security

Disaster recovery

Automation

Observability

BGP

VPN

Leadership

Tools

Terraform

AWS

Job description

London, Greater London | £100k - £140k per year

Lead Cloud Network Engineer (AWS Terraform) London / WFH to £140k

Do you have expertise with AWS networking?

You could be progressing your career in a senior, hands‑on Lead Cloud Network Engineer role at a highly profitable, systematic Hedge Fund that invests in sports betting markets whilst enjoying a range of perks and benefits.

As a Lead Cloud Network Engineer you'll lead the design, delivery and troubleshooting of AWS cloud networking, with a strong focus on reliability, resilience and security. You'll design highly available network architectures across VPCs, Transit Gateway, Direct Connect, VPN, Route 53, security groups and NACLs, while embedding segmentation, least privilege access and threat protection by design.

Collaborating with Cyber Security, you'll implement and continuously improve cloud network security controls, monitoring and architecture. You'll also design and maintain secure hybrid connectivity between AWS, Azure and on‑premises datacentres, with strong observability, monitoring and capacity planning across the wider network estate.

Infrastructure as Code and automation will be central to the role. You'll build reusable Terraform modules and patterns, develop CI/CD pipelines for network provisioning and change management and automate repeatable operational tasks.

You'll help define cloud networking standards and best practice, mentor engineers and work closely with DevOps, Platform and wider technology teams to deliver robust, scalable infrastructure.

Location / WFH:

You’ll be based in fantastic offices in a vibrant area of London with in‑house gym and steam room, games room with pool tables and dart boards, library and free high quality catering (breakfast, lunch, dinner) from the onsite chef with flexibility to work from home once a week (please note that during probation you will be required onsite five days a week).

About you:

• You have indepth AWS networking expertise including VPC, Transit Gateway, Direct Connect, VPN, Route 53, security groups and NACLs
• You have achieved an AWS Advanced Networking Specialty certification (or are working towards it)
• You have strong Infrastructure as Code skills, Terraform including modules, state management, workspaces
• You're a technical leader, happy to set the direction and mentor others
• You have experience of designing for reliability and resilience: HA, failover, disaster recovery
• You have a good working knowledge of Network security including segmentation, least privilege access, secure connectivity, threat protection
• You have strong automation and CI/CD experience, provisioning, pipelines, network tooling
• You have a good knowledge of Routing and Switching (BGP), VPNs (IPSec, SSL), Network Monitoring and Observability
• You're collaborative and pragmatic, able to push back where necessary

What's in it for you:

• Competitive salary, to £140k
• Pension
• Private medical care and wellness days
• Training and conference budget to support your personal development