Systems Design & Architecture

Embedding promotes methods, it does not give you inheritance. Here is where the method-set rules and accidental interfaces bite Go developers.

Introdução Classes abstratas são contratos parcialmente implementados. Você define o que...

Covers: Probabilistic Data Structures, False Positives vs False Negatives, Counting Bloom Filters,...

Rate Limiting: The 5 Algorithms That Protect Every API on the Internet Series: System...

Authentication & Authorization: OAuth2, JWT, and the Equifax Breach That Changed...

Introduction WPF and the MVVM (Model-View-ViewModel) pattern are powerful tools for...

Introdução O TypeScript oferece várias formas de combinar tipos para criar estruturas mais...

Setting up a scalable backend application requires a clear separation of concerns. While FastAPI...

Most backend systems look simple, until they don't. A single server, a database, with requests coming...

Reflecting on two major technical challenges from my backend engineering internship, focusing on...

Table of Contents What Does the PID Temperature Control Algorithm Control in Commercial...

Microservices solve an org problem you don't have yet. Here's the distributed-systems tax you pay before product-market fit, and when to split.

Timeout as a first-class saga state, idempotent compensation, and the unhappy path your test suite quietly skips.

The Challenge: Millions of Drivers, Every 4 Seconds Answer-first: Uber and Grab handle...

How extends constraints, conditional types, and infer let you pull a type out of another type. Unwrap a Promise, an array, and build a tiny DSL.

Tag your union, switch on the discriminant, and let assertNever turn a forgotten variant into a compile error instead of a 2am page.

Plain-struct domain events, an in-process dispatcher, and a transactional outbox. No event bus library, no message broker required.

A repository is a domain port, not an ORM wrapper. Keep SQL at the edge with sqlc and pgx, map rows to aggregates, and keep the core clean.

A reflection on performance optimization at scale and building reliability mechanisms; two tasks that...

Passing the certification is the easy part. Here's what actually matters when you're using...

A step-by-step guide to prepare for System Design Interviews for FAANG and non-FAANG companies

The Architectural Shift: Client-Side vs. Server-First For years, the standard for building...

A breakdown of SSR, CSR, SSG, and ISR with real code examples and honest tradeoffs — written by someone who was genuinely confused about this for way too long.

Mastering Concurrency with the Sleeping Barber Problem Hey there, fellow coder! Today,...

Quick intro about me. I am a backend engineer mostly focused on distributed systems and databases. I...

Two users edit the same document at 9:03 AM. No locking. No coordination. Just two clients writing to...

This morning I was working on a design document. The task was clear: build a self-check mechanism...

One of the most challenging pieces of work I have encountered isn't building software from scratch....

Imagine you're building an app that needs to perform a task every 5 minutes. Examples: Send...

Covers: Two-Phase Commit, Saga Pattern, Choreography vs Orchestration Sagas, Compensating...

Next.js route groups, parallel routes, and intercepting routes: advanced routing...

Introduction Object-Oriented Programming (OOP) is built on four core...

A complete solution: expressive range types in your domain layer, full PostgreSQL...

A walkthrough of designing a real-time collaborative whiteboard from a blank page to a production-ready architecture.

Você já deve ter ouvido a palavra entidade em diferentes contextos no desenvolvimento de software. No...

One of the reasons I often find myself disagreeing with modern software trends is that many...

Polymorphism, Rethought at Compile-Time In this article, we will explain how the features...

Covers: L4 vs L7, Algorithms, Sticky Sessions, Active-Active vs Active-Passive, Health Checks, SSL...

Most business applications start as CRUD. Create a record. Edit it. Delete it. Show it in a...

A seemingly cryptic Next.js error led to a deep dive into build processes and environment variables, revealing a common pitfall for solo developers on limited i

AMD EPYC 8005 Series Architectural Specifications When evaluating dedicated server CPUs...

I'm Building an OS From Scratch in Rust — And It Already Has a Desktop, Filesystem, and...

Introduction Building modern software applications requires much more than writing code. As...

Every microservices deck draws the same box: one database per service, labeled as a security...

This article was written with the assistance of AI tooling for structure and syntax. The concepts,...

Definição O Composite é um padrão de projeto estrutural que permite compor objetos em...

In the last part, we talked about why we built Vyshyvanka. Today, we're going to talk about how....

Intermittent connectivity is the norm on cold-chain lanes, not the edge case. The on-device logging, store-and-forward reconciliation, and timestamp-integrity d