Phan Khoi Nguyen
(Leo)

software engineer·distributed systems·cloud infra·agentic ai

I build backend platforms and the plumbing that holds them together — multi-tenant SaaS, GitOps clusters, edge deployments, agentic AI tooling.

NowBuilding an AI phone agent. Build notes live in the blog.

01Stack

Languages

GoPythonTypeScriptJavaScriptSQLBash

Backend

NestJSGinFastAPIOdoogRPCGraphQLREST

Frontend

ReactReact Router 7Next.jsReact NativeTailwind

Data

PostgreSQLMySQLMongoDBRedisQdrantNATSRabbitMQKafka

AI / LLM

Anthropic SDKOpenAI SDKVercel AI SDKClaude Code pluginsAgentic flowsPrompt engineering

Cloud / Infra

AWSCloudflareKubernetesk3sDockerHelmPulumiFluxCDGitOps

Tooling

GitGitHubLinuxBunTurborepoVitest

Personal projects monorepo. Bun workspaces + Turborepo, deploys to Cloudflare Workers.

AI-assisted vocational guidance for Vietnamese students. NestJS API on self-hosted k3s, RR7 frontend on the edge.

A real phone number that picks up and converses with callers via an STT → LLM → TTS pipeline. In progress.