Senior Platform / Network Engineer Terraform Expert

Client Server Limited; Greater London; Hybrid; GBP 126,000 - 154,000; Full time

Benefits offered by this job

Pension

Private medical care

Wellness days

Training budget

Job summary

Client Server Limited is seeking a Senior Platform / Network Engineer in London to design, build and secure AWS cloud networking at scale. You will lead the implementation of highly available architectures across VPCs, Transit Gateway, Direct Connect and VPN, while integrating security, observability and capacity planning.

The role emphasizes IaC with Terraform, CI/CD pipelines, and collaboration with Cyber Security and DevOps. On-site initially with potential WFH options.

Qualifications

• IaC with Terraform modules and state management.
• Strong AWS networking including VPC, Transit Gateway, Direct Connect, VPN, Route 53, SGs, NACLs.
• AWS Advanced Networking Specialty certification (in progress ok).
• Technical leadership and mentoring experience.
• Design for reliability: HA, failover, DR.
• Knowledge of network security: segmentation, least privilege, threat protection.
• Automation and CI/CD for provisioning and change management.
• Knowledge of Routing and Switching (BGP) and VPNs.
• Collaborative and pragmatic, able to push back when needed.

Responsibilities

• Lead design, delivery and troubleshooting of AWS cloud networking.
• Design highly available network architectures across VPCs, Transit Gateway, Direct Connect, VPN, Route 53.
• Implement and improve cloud network security controls.
• Design and maintain secure hybrid connectivity between AWS, Azure and on‑premises data centres.
• Build reusable Terraform modules and CI/CD pipelines for network provisioning.
• Define cloud networking standards and best practices.
• Mentor engineers and collaborate with DevOps and Platform teams.

Skills

AWS networking

Leadership

Automation

Security best practices

Observability

Routing & Switching (BGP)

VPNs (IPSec, SSL)

Tools

Terraform IaC

Job description

Senior Platform / Network Engineer (Terraform IaC AWS) London / WFH to £140k

Do you have expertise with Terraform?

You could be progressing your career in a hands‑on Senior Platform / 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 Senior Platform / 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 expert Infrastructure as Code skills using Terraform including modules, state management, workspaces
• You have strong 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'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