Michael Hart

Senior Principal Engineer at Cloudflare

Melbourne, Victoria, Australia
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Summary

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Michael Hart is a Senior Principal Engineer based in Melbourne with 14 years of experience building high-performance, cloud-native systems and developer platforms. He currently leads engineering work at Cloudflare on distributed AI deployments, global smart placement, a vector database, and an AI documentation assistant running on Workers and Queues. Previously he scaled analytics pipelines and reduced Lambda cold starts at Bustle, led research engineering and containerized ingestion for billions of events, and earned recognition as an AWS Hero for deep cloud expertise. A pragmatic polyglot engineer and ex-CTO, he’s shipped production infrastructure from EC2/DynamoDB to serverless and container runtimes, and has repeatedly optimized build and CI pipelines for order-of-magnitude gains. An active open-source contributor, his work touches critical AWS tooling—contributions to projects like aws-sam-cli, lambci/docker-lambda and amazon-cognito-identity-js show a knack for hardening runtime compatibility, crypto refactors, and lightweight Docker images. He combines systems-level thinking with hands-on devops and backend craftsmanship, often tackling subtle performance and compatibility issues others overlook.
code14 years of coding experience
job20 years of employment as a software developer
bookThe University of Melbourne
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Stackoverflow

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Github Skills (58)

alpine-linux10
build-script10
javascript10
docker10
back-end-development10
validations10
biginteger10
testing10
configuration-management10
server-side-rendering10
aws-lambda10
authentication10
user-authentication10
bash10
validation10

Programming languages (29)

C#CGoHTMLTypeScriptShellROCaml

Github contributions (5)

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lambci/lambci

Jun 2016 - Dec 2020

A continuous integration system built on AWS Lambda
Role in this project:
userDevOps Engineer
Contributions:201 commits, 17 PRs, 71 pushes in 4 years 6 months
Contributions summary:Michael primarily contributed to the infrastructure and build processes of the LambCI project. Their work included modifying CloudFormation templates, adjusting configuration files, updating build scripts, and migrating to a SAM-based template. They also focused on improving the build environment by adding support for new runtimes and dependencies, reflecting their role in enhancing the project's CI/CD pipeline.
serverlessaws-lambdacontinuousawscontinuous-integration
mhart/alpine-node

Apr 2015 - Jan 2023

Minimal Node.js Docker Images built on Alpine Linux
Role in this project:
userDevOps Engineer
Contributions:799 commits, 12 PRs, 668 pushes in 7 years 10 months
Contributions summary:Michael's commits primarily focused on maintaining and updating the Dockerfiles for the `alpine-node` images. Their contributions involved updating npm and yarn to the latest versions, building slim images with smaller sizes, and creating builds for various Node.js versions. The user also worked on adjusting build scripts and updating dependencies within the Docker images, demonstrating an understanding of the build process and infrastructure configurations.
dockerfiletiddlywikidocker-imagenode-jsdocker-machine
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Michael Hart - Senior Principal Engineer at Cloudflare