Stanford Black Limited
AWS Network Operations Engineer
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Network Operations Engineer – AWS (Contract)
Location: London
Company: 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
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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
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Desirable:
- 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
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