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Thoughts on frontend development, tooling decisions, and building things that people actually enjoy using.

BullMQJul 16, 2026·7 min read

BullMQ Essentials: Background Jobs and Queues for Backend Developers

Move slow work out of the request with BullMQ: queues, jobs, workers, retries with backoff, cron jobs, a dead letter queue, and NestJS setup.

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ElasticsearchJul 16, 2026·7 min read

Elasticsearch Essentials for Backend Developers

How Elasticsearch finds text fast: shards, the inverted index, Query DSL, analyzers, filters vs queries, aggregations, and how it sits beside PostgreSQL.

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RedisJul 16, 2026·7 min read

Redis Essentials for Backend Developers

Redis is more than a cache. Which of its five core data types fits which job, plus TTL, cache-aside, sessions, rate limiting, Pub/Sub and persistence.

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DatabaseJul 16, 2026·7 min read

NestJS + Sequelize: Connecting Your API to PostgreSQL

Connect NestJS to PostgreSQL with Sequelize: models, migrations, relations, validators, hooks and transactions, plus the settings that bite in production.

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DatabaseJul 16, 2026·7 min read

PostgreSQL & Database Essentials for Backend Developers

The PostgreSQL basics you'll use every week: keys, joins, indexes, transactions, normalization, and when JSONB or full-text search is enough.

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NestJSJul 16, 2026·6 min read

Full-Stack Auth: NestJS + React — Signup, Login & Session Management

Signup and login between NestJS and React: bcrypt hashing, JWTs, CORS, where to keep the token, and protecting routes on both sides.

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NestJSJul 16, 2026·6 min read

Building Your First NestJS API: From Zero to a Validated Endpoint

Build a NestJS API from scratch: install the CLI, add GET and POST routes, then use class-validator so a string like "hello" can't break your math.

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NestJSJul 16, 2026·8 min read

NestJS Fundamentals: Controllers, Services, Modules & the Request Lifecycle

How a request moves through NestJS: controllers, services, modules and DI, plus where pipes, guards, interceptors and filters fit, with code.

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Backend BasicsJul 16, 2026·4 min read

What Is a Server? The Client-Server Model Explained

A server is a program that waits for requests and answers them. How clients find it with DNS and ports, and the request loop under every backend.

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BackendJul 15, 2026·7 min read

Learning Backend for Real: NestJS, PostgreSQL, Redis, BullMQ & Elasticsearch

Five backend tools, one job each. A plain map of what NestJS, PostgreSQL, Redis, BullMQ and Elasticsearch do, and how a request moves through them.

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Performance & SEOJul 15, 2026·9 min read

Core Web Vitals, Page Speed & Technical SEO: The Complete Guide

What LCP, INP and CLS measure, what makes each one bad, and how to fix them, plus the technical SEO basics that decide whether a fast page gets indexed.

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