Performance Optimization and Profiling in Node.js
Profile and optimize Node.js applications — find memory leaks, reduce event loop lag, use worker threads, cluster mode, and caching strategies
The Archive of
Intentional Thought
Technical essays, architectural deep-dives, and practical guides at the intersection of code and design.
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Node.js Architecture — Event Loop Deep Dive
Understand the Node.js event loop, its phases, microtasks vs macrotasks, and how non-blocking I/O actually works under the hood with libuv
MongoDB with Mongoose — Patterns and Pitfalls
Master MongoDB with Mongoose in Node.js — schema design, indexing strategies, population, aggregation pipelines, and common anti-patterns to avoid
Message Queues with RabbitMQ and SQS in Node.js
Implement reliable message queuing in Node.js with RabbitMQ (amqplib) and AWS SQS. Learn exchange types, dead letter queues, retry patterns, and guaranteed delivery
File Uploads and S3 Integration in Node.js
Handle file uploads in Node.js with Multer, stream large files to AWS S3, generate presigned URLs, and implement multipart uploads for large files
Docker and Containerization for Node.js
Containerize Node.js applications with Docker — multi-stage builds, Docker Compose for development, health checks, security best practices, and production optimization
Error Handling and Logging in Production Node.js
Build robust error handling and structured logging for production Node.js apps using Winston, Pino, custom error classes, and centralized error middleware
Deploying Node.js to AWS
Deploy Node.js applications to AWS using ECS Fargate, Lambda, and Elastic Beanstalk — with CI/CD pipelines, auto-scaling, and monitoring
Building REST APIs with Express and Nest.js
A comprehensive guide to building production-ready REST APIs with Express.js and Nest.js, covering routing, middleware, validation, and best practices
Real Project — Build a Production Node.js API
Build a complete production-ready REST API with Node.js, Express, PostgreSQL, Redis, JWT auth, testing, Docker, and CI/CD — putting it all together
Authentication — JWT, Sessions, OAuth in Node.js
Implement secure authentication in Node.js using JWT tokens, server-side sessions, and OAuth 2.0 with Passport.js and best security practices
Claude Code Skills — Build a Better Engineering Workflow with AI-Powered Code Reviews, Security Scans, and More
A practical guide to building Claude Code custom skills for engineering workflows — automated code reviews, security scanning, test generation, commit hygiene, and CI integration with real skill definitions you can use today.