Paul Yeoh

Driving improvement projects for an infrastructure platform supporting over 800 engineers.

• Built centralised WAF management, replacing legacy approval flows and risky practices — eliminating production incidents from firewall misconfiguration.
• Automated mass-import of 100+ production AWS accounts into Terraform state via GitHub Actions and terragrunt.
• Systematised the decomposition and refactoring of a gigantic, IaC monorepo actively used across the organisation which had become a bottleneck for development velocity and reliability.
• Created a git-managed documentation store for the platform team, with CI/CD to surface runbooks on a docs site and an AI knowledge base.

Led a 3-person platform engineering team providing CI/CD and cloud platform services to 50+ product teams.

• Built the organisation-wide CI/CD platform: trunk-based development, build-once-deploy-anywhere, and self-service config management.
• Standardised AWS environments across the organisation using HCP Terraform Cloud.
• Deployed a private CA on HCP Vault for internal service identities with IAM Roles Anywhere.
• Led CDN migration from Edgio to AWS CloudFront, improving reliability and operations.
• Led containerisation of workloads from EC2 to ECS Fargate, improving security profile.
• Drove cloud cost optimisation: right-sizing compute, fixing access patterns, eliminating overprovisioned resources, and surfacing missing database indices.

Grew from developer consultant to tech lead with a specialisation in cloud infrastructure.

• Tech Lead on a government health data engineering project (Databricks, Scala, Python).
• Backend engineer on a major Indonesian super-app (Go, Clojure).
• Full stack development for an employment benefits provider on Azure (terraform, .NET Core, React Native).

Backend and DevOps engineer building services in Go, Ruby, and JavaScript. Projects included MyENV and NTUC.

• Pioneered use of serverless architecture (Lambda / APIGW) in the organisation to reduce running costs and handle traffic spikes.
• Migrated workloads from Ruby on Rails to Go, improving performance and reducing hosting costs.

Freelance web development with Ruby on Rails, WordPress, and Backbone.js.