Backend Engineering

The requests library is probably the most commonly used library in Python, having been used in...

As we move into 2026, the demand for efficient data retrieval remains a cornerstone of professional Python development. Mastering the… Continue reading on Mediu

As we move into 2026, the demand for efficient data retrieval remains a cornerstone of professional Python development. Mastering the… Continue reading on Mediu

Você já tem um projeto Express organizado em MVC, com sua rota inicial funcionando e uma view de...

Se você já programa em JavaScript no navegador e quer dar o próximo passo, levando essa linguagem...

Existe um erro que derruba MUITAS APIs Spring Boot em produção: “HikariPool - Connection is not...

Serverless conversations split into two camps: believers and skeptics. The reality is more useful than either extreme. Here's the honest version of what no

I Built a Password Strength Analyzer API with Python + FastAPI 🔐 As a backend developer, I...

Java is one of the most important programming languages in modern software development. It powers backend systems, enterprise applications… Continue reading on

Apart from CRUD work in backend, there is a lot more to learn and implement in your projects to allow...

So you scaffolded a blog post and handled permissions in a clean way… Perhaps… const...

Around 2018, I sat across from a coworker — let's call him D — who had a habit of stepping away for...

When it comes to database interaction in Java, a choice is usually made between Java Database...

I've used both in production — Puppeteer for Pikkuna's Finnish VAT invoices, @react-pdf/renderer for pi-pi.ee's Cyrillic invoices. Here's the honest…

MERN Stack becomes easier when beginners stop jumping between tools and start understanding how a real full-stack application works. Continue reading on Medium

If you manage a realtime application, you know that Redis is often the beating heart of your infrastructure. Recently, our production application—which relies h

PHP 8.5 is here, and while it may not feel quite as dramatic as PHP 8.4’s property hooks and...

I recently started learning JavaScript, and I didn't come in blind. I had Go in my head — how it...

Part 2: Commands, Queries, Events, and Sagas — The Backend’s Redux + useEffect Continue reading on JavaScript in Plain English »

A beginner-friendly guide to CORS, same-origin policy, and why browsers sometimes block API requests.

JSON Web Tokens are everywhere. They're the de facto standard for stateless API authentication and...

As TypeScript developers, we use Tuples when we want to define an array with a fixed number of...

Callback Functions A callback function is a function which is passed as an argument to...

I've been mildly obsessed with typing games since I first used TypeRacer in 2009. Last month I...

Photo by Headway on Unsplash Continue reading on Medium »

Want to use Git like a senior developer? It’s not about knowing hundreds of commands - it’s about...

Why Beginners Struggle with Git Git isn’t just about commands - it’s about understanding...

Mastering Regular Expressions in JavaScript: From Basics to Real-World Validation At first...

Advanced MEAN Stack Certification Continue reading on Medium »

Handling duplicate requests in APIs, especially in payment systems, is a headache. NestJS RedisX...

A Backend Developer Application Built Around Failure Modes A Backend Developer...

Hiring for the Backend Engineer Who Makes Production Boring Hiring for the...

I've built this thin Pydantic-over-asyncpg layer too many times now. Every project ends up with the...

localStorage, sessionStorage, IndexedDB, Cache API, Origin Private File System, cookies — six browser storage APIs that each solve a… Continue reading on Medium

localStorage, sessionStorage, IndexedDB, Cache API, Origin Private File System, cookies — six browser storage APIs that each solve a… Continue reading on Medium

TrueFramework is a small, opinionated PHP framework built around three rules: plain PHP and plain...

The Node.js ecosystem has relied on the ws library for 15 years. It’s reliable, but it was built for...

Foundry vs Hardhat in 2026: Which Solidity Toolchain Wins? Two toolchains. Same goal:...

Most beginners think Node.js is “easy” until their app becomes slow, buggy, or impossible to maintain. These are the exact mistakes almost… Continue reading on

How I Built a Stripe Webhook in Node.js (Full Guide) Webhooks are essential for modern payment processing systems, and Stripe's implementation is particularly e

One of most important and basic operations in Java Backend is Consuming Rest api. In this blog I use...

Have you notice something like this in your url. It sometimes look like this...

Consider you need to branch your code logic according to the existence of a certain function within a class. Continue reading on Medium »

The difference between a system that scales to millions and one that collapses under pressure usually comes down to a single architectural… Continue reading on

Overcoming the fear of big T Continue reading on Medium »

When interviewers ask async JavaScript questions in Node.js interviews, they usually don’t want textbook definitions. Continue reading on Medium »

Dealing with HTTP requests is also learning a lot about network issues and distributed data problems....

Learn how to build a complete audit log in Laravel using spatie/laravel-activitylog v5. Covers setup, model events, Filament display, and v4 migration.