AWS Network Operations Engineer

Stanford Black Limited; Greater London; On-site; GBP 92,000 - 148,000; Full time

Job summary

Stanford Black Limited is seeking a Network Operations Engineer to join the AWS Cloud Engineering team in London. You’ll work hands-on within a highly technical cloud environment supporting a global AWS network used by application and infrastructure teams.

The role focuses on automation, IaC, and operational excellence, collaborating with security, IT and senior engineers. The successful candidate will operate AWS networking across environments, implement Terraform modules, and contribute to

Qualifications

• 2–4 years' experience in cloud, infrastructure or network operations engineering.
• Solid networking fundamentals including IPv4, DNS, TCP/UDP and routing.
• Hands-on AWS networking experience across VPC, Transit Gateway and Route53.
• Practical Infrastructure-as-Code experience with Terraform.
• Python and/or Bash scripting experience.

Responsibilities

• Operate and support a complex global AWS network across production environments.
• Implement network changes using Infrastructure‑as‑Code, primarily Terraform.
• Maintain and enhance Terraform modules to enable consistent, repeatable deployments.
• Develop automation and operational tooling using Python and/or Bash.
• Execute controlled production changes through CI/CD pipelines with testing and peer review.
• Troubleshoot AWS connectivity and configuration issues using native and third‑party tooling.
• Contribute to monitoring, observability, documentation and runbooks.

Skills

AWS Networking

Python scripting

CI/CD

Infrastructure‑as‑Code (Terraform)

DNS/IPv4/Routing

Tools

Terraform

CloudWatch

Grafana

VPC IPAM

Infoblox

Job description

Network Operations Engineer - AWS (Contract)

London | Systematic Hedge Fund

A leading quantitative and systematic investment manager is looking for a Network Operations Engineer to join its AWS Cloud Engineering team. This is a hands‑on opportunity to work within a highly technical cloud environment, supporting a global AWS network used by application and infrastructure teams across the business.

The team is responsible for providing a scalable, secure and highly available AWS foundation, with a strong focus on automation, Infrastructure-as-Code and operational excellence. You'll work closely with senior engineers, application teams, Security and IT to ensure network services remain reliable, well‑governed and easy to operate at scale.

The Role

• Operate and support a complex global AWS network across production environments
• Implement network changes using Infrastructure-as-Code, primarily Terraform
• Maintain and enhance Terraform modules to enable consistent, repeatable deployments
• Develop automation and operational tooling using Python and/or Bash
• Execute controlled production changes through CI/CD pipelines, with appropriate testing, validation and peer review
• Assess change risk and implement appropriate testing, impact analysis and rollback strategies
• Troubleshoot AWS connectivity and configuration issues using native and third‑party tooling
• Support network‑related incidents and service requests from internal stakeholders
• Contribute to monitoring, observability, documentation and operational runbooks
• Identify opportunities to automate repetitive tasks and improve operational processes
• Work alongside senior engineers on the continued evolution and scaling of the AWS platform

The role offers the opportunity to deepen your experience across cloud networking, automation and platform engineering, with exposure to a sophisticated production environment and large‑scale AWS infrastructure.

Requirements:

• 2-4 years' experience within cloud, infrastructure or network operations engineering
• Solid networking fundamentals including IPv4, DNS, TCP/UDP and routing
• Hands‑on AWS networking experience, ideally across VPC, Transit Gateway and Route53
• Practical Terraform / Infrastructure-as-Code experience
• Python and/or Bash scripting experience
• Strong troubleshooting skills and a methodical approach to production issues
• Experience working with tickets, incidents and internal stakeholders
• Comfortable operating in a fast‑paced, technically demanding environment
• Experience operating AWS networking across multiple environments or regions
• CI/CD and automated deployment experience
• AWS VPC IPAM or Infoblox
• ALB / NLB
• CloudWatch, Grafana or other observability tooling
• AWS VPC Lattice or other newer AWS networking services

Company Highlights:

• Technology‑led culture - engineering and technology sit at the heart of the investment platform
• Significant growth across compute, storage, and networking platforms, creating a strong pipeline of upcoming projects
• Opportunity to work on complex infrastructure and cloud networking challenges at scale
• Strong focus on automation, Infrastructure-as-Code and engineering excellence
• c.2,000 employees - large enough for scale, small enough for meaningful individual impact
• Brand‑new London HQ - core engineering and trading hub with free on‑site gym
• Flat organisational structure - meaningful ownership and direct exposure to senior technical leadership
• Highly collaborative culture with close interaction between engineering, infrastructure, security and application teams
• Excellent Glassdoor ratings consistently quoting a strong work‑life balance