Michael Guay
I build production-grade apps with NestJS, React & TypeScript, and teach how.
Courses, lectures and articles for developers shipping real backends and full-stack apps, and the tools I use to build them.
- 17,724 students on Udemy
- 4.5 rating from 2,051 reviews
- 25,000+ YouTube subscribers
What I make
Courses
Michael Guay courses
Project-based courses and deep-dive lectures on NestJS, microservices and full-stack TypeScript, with captions, transcripts and an AI assistant that knows every lesson.
Browse the library learn.michaelguay.devSaaS starter kit
SaaS Stack
Production-ready SaaS boilerplate: NestJS API, React and Expo apps, auth, teams, Stripe billing and deploy, with an AI layer that builds features your way.
See SaaS Stack stack.michaelguay.devLatest
Lectures All lectures →
Articles All articles →
- Building a Job Queue in Postgres with SKIP LOCKED Oct 4, 2026 · 10 min read
- Optimistic vs Pessimistic Locking in NestJS with Drizzle ORM and Postgres Sep 12, 2026 · 13 min read
- Clean Architecture, DDD, and the Dependency Inversion Principle: How They Fit Together Jul 26, 2026 · 6 min read
- End-to-End Type Safety with TanStack Router, NestJS, oRPC, and Better Auth Jun 13, 2026 · 7 min read
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