AWS Platform Engineer

AWS Platform Engineer

Location: London, UK (hybrid)

Engagement: Professional services / contract

Level: Principal / Senior

Positions: 4 (mix of Principal and Senior)

Industry: Financial services (global financial markets infrastructure)

About the Client

Our client is a leading global financial markets infrastructure and data provider, headquartered in London. They are undertaking a major cloud platform engineering programme to build secure, regulatory\-compliant AWS foundations and a Kubernetes\-based cloud management control plane. You will join an established agile squad delivering this platform.

The Role

We are seeking four AWS Platform Engineers (a mix of Principal and Senior level) to design and build the client's AWS landing zone foundations and core platform capabilities. This is a hands\-on engineering role focused on multi\-account, multi\-org AWS architecture, networking, security/IAM, and reusable Infrastructure\-as\-Code.

Key Responsibilities

• Design and build AWS landing zones across a multi\-account, multi\-org estate


• Develop reusable Infrastructure\-as\-Code modules in Terraform, delivered through CI/CD pipelines


• Implement automated guardrails and golden patterns for platform consumers


• Build secure ingress and egress patterns


• Standardise DNS, routing, and traffic segmentation across the platform


• Design and automate cross\-cloud and intra\-cloud connectivity


• Implement a unified IAM model and privileged access management (PAM)


• Design secure landing zone baselines and enable regulatory\-compliant architectures


• Contribute to the cloud management engine (control plane)


• Work as part of an existing agile squad, with delivered work accepted against an agreed definition of done

• Deep hands\-on AWS platform engineering experience at enterprise scale


• Strong AWS network engineering: VPC design, Transit Gateway, routing, DNS, traffic segmentation


• Strong AWS security and IAM expertise, including identity federation and least\-privilege design


• Expert\-level Terraform and CI/CD pipeline experience (module design, automated testing, release workflows)


• Experience designing landing zones, guardrails, and golden\-path patterns in regulated environments

• Python and/or Golang development experience


• Experience in financial services or other highly regulated environments


• Exposure to Kubernetes\-based control planes and platform engineering practices

Work Location: In person

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