Senior Cloud Platform Engineer

We are seeking a Senior Cloud Platform Engineer to help build, secure and operate our AWS and Azure environments, with a primary engineering focus on AWS.

This is a hands-on role with an opportunity to drive the adoption of Infrastructure as Code (IaC), automation and modern cloud engineering practices across the infrastructure team, while working closely with our Data & AI, Cyber Security and broader technology teams.

Design, build and operate secure AWS infrastructure using Terraform and reusable IaC patterns.

Support and evolve our multi-account AWS environment, including landing zone architecture, governance, guardrails and account onboarding.

Drive IaC adoption across the infrastructure team, establishing standards and mentoring team members in Terraform, Git and automation.

Design and support cloud networking and security across AWS and Azure, including centralised networking, connectivity and security controls.

Implement security and governance requirements through IaC and automation and assist with remediation of cloud security findings.

Partner with Data & AI and other technology teams to enable secure, well-governed deployment of infrastructure and workloads into AWS.

Develop and maintain CI/CD and secure infrastructure deployment processes using GitHub Enterprise.

Use AI-assisted engineering tools, including Cursor, as part of day-to-day IaC development, and develop reusable knowledge and patterns covering Terraform, platform standards and review practices.

Provide BAU support across AWS and Azure, including troubleshooting, incident resolution and continuous improvement.

Support the progressive adoption of Terraform and automation across existing Azure infrastructure.

Maintain technical documentation and operational runbooks and lead infrastructure components of technology projects.

Advanced Terraform proficiency and demonstrated enterprise Infrastructure as Code experience.

Strong hands-on experience designing, building and operating AWS infrastructure and multi-account environments.

Practical experience managing and supporting Azure infrastructure.

Strong cloud networking, network security, IAM and cloud governance knowledge.

Experience implementing secure IaC, guardrails and automated cloud security controls.

Experience with Git, CI/CD and automated infrastructure delivery.

Demonstrated experience supporting production cloud environments and resolving infrastructure incidents.

Ability to establish engineering standards, influence technical direction and mentor others in IaC adoption.

Strong understanding and practical application of the AWS Well-Architected Framework.

Strong troubleshooting, communication and documentation skills.

AWS landing zone experience, including AWS Landing Zone Accelerator, Control Tower, AWS Organizations or equivalent.

Centralised AWS networking and AWS native security experience.

GitHub Enterprise administration and governance.

Okta, Entra ID and Active Directory experience.

Infrastructure as Code experience with networking or security platforms.

Experience supporting data or AI platforms in AWS.

Experience using AI-assisted engineering tools such as Cursor, GitHub Copilot or equivalent within IaC, platform engineering or automation workflows.

FinOps or cloud cost optimisation experience.

Experience working within Financial Services or another regulated environment.

Relevant AWS and/or Azure certifications.