Systems Design & Architecture

TL;DR: Black Friday on a 2M-product platform. Before adding a single server, EXPLAIN ANALYZE found...

When I was in the beginning phase of my web development journey, I faced a highly frustrating issue:...

(The following example is fictionalized.) A notification template feature shipped six months ago. It...

Mientras leía el libro Hexagonal Architecture Explained de Alistair Cockburn y Juan Manuel Garrido,...

Great Stack to Doesn't Work — Bonus Monolith vs Microservices: The 2026...

In the previous article, we examined the importance of software design, and how all software...

After a 7-week build sprint, I launched Zooming Fractal: https://zoomingfractal.com It's a free...

All tests run on an 8-year-old MacBook Air. All results from shipping 7 Mac apps as a solo developer....

The biggest and most costly mistakes in my career weren't hidden in a line of code or a misconfigured...

Practical end-to-end Procure-to-Pay test cases across MM and FI to ensure accurate invoicing, postings, and supplier lifecycle with reusable templates

Go Interfaces: Why Less Is Almost Always More If you’re coming to Go from Java or C++,...

In the summer of 2016, Pokémon GO launched to a user base roughly fifty times larger than its...

Your order service takes 200 writes/sec at peak. You audit 6 months of data. Something's off — two...

Regex vs AST: Why Compiler-Aware Code Transformations Are Safer When developers want to...

Backend-for-Frontend (BFF) layers solve a real problem. As systems grow, frontends often need data...

Why We Chose Next.js for Building High-Performance Digital Experiences at Brand Spanner In...

Hey fellow dev — let's tackle the choice that keeps us up at night: which database should you...

One of the biggest mistakes developers make is treating components as UI elements instead of...

By default, Rust treats the fields of a struct as private. However, it does not dogmatically enforce...

🚀 [Part 2] When the Leader goes down, how does the system save itself? In the previous post, we...

Setting up a 10-page marketing site Count the tools. You reach for Next.js or Astro. You...

At some point, a monolith starts working against you. In my case, Finovara was a single Spring Boot...

At some point, a monolith starts working against you. In my case, Finovara was a single Spring Boot...

We are Zaiq, an engineering studio. We built Revenant, a Game Boy and Game Boy Color emulator, from...

In this article, we will explore how to coordinate distributed transactions in Go using the Saga...

Database design for application developers: a practical guide Good database design is the...

Architecture Decision Records exist to solve a recurring and expensive problem: six months after a...

To understand why Solana can process tens of thousands of transactions per second while maintaining...

A few years ago I built an electronic search warrant system for a state law enforcement agency. Paper...

You're building a file upload service. 10TB of user files today. 100TB in 12 months. Your team is...

Pattern Defined Precise Definition: Context Compression is an inference pattern that...

It's 2026. You've watched the language wars get louder for another year. Rust keeps eating systems...

Cómo solucionar el error "Text content does not match server-rendered HTML" en...

Gas cylinders used in CNG vehicles, hospital oxygen systems, hydrogen fuel cells, and firefighting...

Steel Tube Shape Selection Is About Force Direction In fabrication, the most expensive tube choice is...

Steel Tube Shape Selection Is About Force Direction In fabrication, the most expensive tube choice is...

During most of my career, I worked in maintenance rather than software development. When I started...

6 engineering philosophies from the team that built the world's largest object store — and what they mean for how you build systems.

Have you ever stumbled upon code that works almost like a miracle, entirely because of how the...

Set-Chemistry Permissions tables are technical debt. The Primitive: Routes Are...

If you've worked at an early-stage startup, you've probably experienced some version of this: The...

From Learning Syntax to Building Systems When I started programming, I believed that...

Something that has been bothering me for a while in the software industry is how disproportionately...

Bilingual post · Post bilíngue Jump to: English · Português English {#english} ...

Bilingual post · Post bilíngue Jump to: English · Português English {#english} ...

InfoQ 2025: premature microservices are now a top scaling bottleneck. Common failure at ~1,000 concurrent users. The architecture trap.

I pulled up to a Dairy Queen drive-thru last week and ordered a meal in the wrong order. The cashier...

You are building an MVP. Every decision you make either accelerates or delays your path to revenue....