# Petar Ivanov Tech

> Production-grade architecture for full-stack JavaScript developers — React, Node, and AI systems. Move from writing code to designing systems. Join 30,000+ engineers.

Petar Ivaylov Ivanov is a JavaScript Architect. Helping JavaScript developers level up from writing code to designing systems — production-grade React and Node.js architecture.

## Books
- [The Conscious React](https://petarivanov.tech/books/conscious-react/): The React architecture book for the AI era — 100+ production tips covering React 19, Server Components & the Compiler, plus 4 runnable companion repos.
- [The Conscious Node](https://petarivanov.tech/books/conscious-node/): The gap between a Node developer and a Node architect: 157 production tips across 10 chapters — architecture, APIs, data, observability, testing & deploys.

## Free Resources
- [Production-Grade React Architecture Playbook](https://petarivanov.tech/resources/production-grade-react-architecture-cheatsheet/): A free one-page-per-lens playbook for senior React engineers. Six architectural lenses, decision trees, and the 10 rules of senior React — distilled to a single PDF.
- [Production-Grade Node.js Architecture Playbook](https://petarivanov.tech/resources/production-grade-nodejs-architecture-playbook/): A free one-page-per-lens playbook for senior Node.js engineers. Five architectural lenses, decision trees, and the 10 rules of senior Node — distilled to a single PDF.
- [The TypeScript Architecture Cheat-Sheet](https://petarivanov.tech/resources/typescript-architecture-cheatsheet/): A free reference: the 10 architecture decisions that keep a Node/TS codebase from rotting into mud — where logic goes, Result types vs throwing, when to abstract, idempotency, and module boundaries.
- [The JavaScript Architect Roadmap](https://petarivanov.tech/resources/javascript-architect-roadmap/): A free 6-stage roadmap from mid-level developer to JavaScript architect — language mastery, clean code, architecture, data, distributed systems, and the architect’s craft. What to learn, in what order.

## Key Pages
- [About Petar Ivaylov Ivanov](https://petarivanov.tech/about/)
- [Talks & Conference Sessions](https://petarivanov.tech/talks/)
- [Sponsorship](https://petarivanov.tech/sponsorship/)
- [Bundles](https://petarivanov.tech/bundles/)
- [Newsletter (30,000+ engineers)](https://petarivanov.tech/blog/)

## Recent Articles
- [CQRS Without the Astronaut Architecture](https://petarivanov.tech/blog/cqrs-without-the-astronaut-architecture-split-read-write-paths-typescript-nodejs-backend-service/)
- [You're Using React Compound Components Wrong](https://petarivanov.tech/blog/you-are-using-react-compound-components-wrong-type-safe-typescript/)
- [How to Stop Charging Customers Twice: A Practical Idempotency Guide](https://petarivanov.tech/blog/how-to-stop-charging-customers-twice-practical-idempotency-guide-http-message-queues/)
- [My Frontend Stack In 2026](https://petarivanov.tech/blog/my-frontend-stack-in-2026-react-nextjs-pnpm-vite-ts-tailwind-storybook-tanstack-zustand-zod-oxlint-oxfmt-msw-vitest-playright-sentry/)
- [Stacked PRs: The Code Review Workflow That Changed How I Ship Features](https://petarivanov.tech/blog/stacked-prs-the-code-review-workflow-that-makes-difference/)
- [20 Mistakes That Quietly Destroy JavaScript/TypeScript Codebases (Part 2)](https://petarivanov.tech/blog/20-mistakes-that-quietly-destroy-javascript-typescript-codebases-common-code-smell-patterns-async-performance-testing/)
- [20 Mistakes That Quietly Destroy JavaScript/TypeScript Codebases (Part 1)](https://petarivanov.tech/blog/20-mistakes-that-quietly-destroy-javascript-typescript-codebases-common-code-smell-patterns/)
- [ES2025 Features You Should Actually Use](https://petarivanov.tech/blog/es2025-javascript-typescript-eight-features-you-should-actually-use-production-codebase/)
- [Vertical Slice Architecture in Node.js: One Folder Per Use Case](https://petarivanov.tech/blog/vertical-slice-architecture-in-nodejs-typescript-one-folder-per-use-case/)
- [Dependency Injection in Node.js & TypeScript. The Part Nobody Teaches You](https://petarivanov.tech/blog/dependency-injection-in-nodejs-and-typescript-dependency-inversion-part-no-body-teaches-you/)
- [Screaming Architecture & Colocation: Let Your Project Structure Tell the Story](https://petarivanov.tech/blog/screaming-architecture-and-colocation-nodejs-typescript-react/)
- [4 Disciplines That Separate Effective Engineers From Busy Ones](https://petarivanov.tech/blog/four-disciplines-that-separate-effective-software-engineers-from-busy-engineers/)
- [Database Design Doesn't Start With Table. It Starts With Consequences](https://petarivanov.tech/blog/database-design-foundations-backend-engineers-mistakes-and-lessons/)
- [How to 10x Your Code Quality With Three AI Tools](https://petarivanov.tech/blog/how-to-10x-your-code-quality-with-three-ai-tools-advisors-generators-reviewers/)
- [The Systematic AI Code Review Workflow: Plan, Generate, Validate](https://petarivanov.tech/blog/the-systematic-ai-code-review-workflow-plan-generate-validate/)
- [2-Tier to 3-Tier Architecture: Migration Journey With Modular Monolith and GraphQL](https://petarivanov.tech/blog/two-tier-to-three-tier-architecture-migration-case-stuty-modular-monolith-graphql-api-software-architecture/)
- [Conscious Debugging: 10 Effective Strategies That Actually Work 🐛](https://petarivanov.tech/blog/conscious-debugging-10-effective-debugging-strategies-debug-like-pro/)
- [Functional Error Handling in Node.js With The Result Pattern](https://petarivanov.tech/blog/functional-error-handling-in-nodejs-with-the-result-pattern/)
- [Own Your Onboarding: The First 90 Days That Define Your Career 🚀](https://petarivanov.tech/blog/own-your-onboarding-the-first-30-60-90-plan-new-company-hiring/)
- [Ace Your Next JavaScript Interview: Promises, Async/Await, Event Loop (Part 4) ✨](https://petarivanov.tech/blog/javascript-interview-questions-promises-async-await-event-loop-demystified/)