Systems Design & Architecture

I spent an entire weekend building a “small” take‑home assignment. Friday to Monday. Stock data app....

If you've ever used mapbox-gl-draw or any MapLibre drawing library, you've probably hit this...

Introduction and Motivation If you've read my previous post on Phase 1, you probably have...

Modern SaaS products live or die by their landing page. A fast, clean, well-structured landing page...

En los últimos años, el sector financiero ha vivido una transformación profunda: presión regulatoria,...

Understanding QIS — Part 8 There is a striking paradox at the center of distributed systems...

缓存架构深度指南：如何设计高性能缓存系统 在现代分布式系统中，缓存是提升系统性能的核心组件。本文将深入探讨缓存架构的设计原则、策略与实战技巧。 ...

B+Tree, B-Tree, LSM Tree — the three structures that explain almost every database performance characteristic. Deep dive with visuals, tradeoffs, and real impli

Lessons from extracting authentication and authorisation into a dedicated microservice, including database migration, in-memory testing, and architectural decis

ABAP OOP Design Patterns — Part 2: Factory, Observer, and Decorator Patterns in Real SAP Systems If...

Array Internals & Memory Layout Before you memorize complexity tables, it helps to...

Distributed systems are notoriously hard. They force us to deal with constant uncertainty: machines...

I’ve been working on a state layer focused specifically on one problem space: 👉 Post-hydration...

Quorum vs. Raft: The Hierarchy of Distributed Systems In distributed systems, we often...

Why This Matters In a distributed system — especially one spanning multiple regions and...

𝐀𝐝𝐝𝐫𝐞𝐬𝐬 𝐒𝐩𝐚𝐜𝐞: Every process running on our systems has memory allocated for its address space. Which...

Building a truly seamless digital ecosystem from scratch is a massive engineering challenge. At...

Chrome wasn't "crashing." It was just...slowly suffocating my system. Over time, RAM usage would...

A deep dive into the Google Zanzibar paper — covering Relation Tuples, the New Enemy problem, Zookies, the Leopard index, and system architecture. With notes on

As developers, we spend our lives building systems, handling edge cases, and trying to predict where...

Anemic domain models put business rules everywhere except where they belong. Here's how to build domain objects with real behavior, value objects with self-vali

Making Your SPA Remember State with localStorage — 3 Patterns and Their Pitfalls In a...

Alright, let's rip into this "Principal Engineer, SOC Physical Design" gig at Renesas. Another day,...

Everyone is building websites. Very few are building systems that actually generate results. That...

Since I started working on the development of the time-series database Apache IoTDB in 2016, I've...

No segfaults. No data races. No garbage collector. Here's the idea behind Rust's most powerful...

How Sessions 5 and 6 of my ERP Modular project turned a login-based prototype into a responsive ERP shell with real navigation, real product data, and validated

In modern software systems, tightly coupled architectures quickly become a bottleneck. As systems...

Object-Oriented Programming (OOPS) is a paradigm that organize the code using Classes and objects....

When it comes to efficient data storage and retrieval, B-Trees and B+Trees are the backbone of...

Most discussions around blockchain architecture focus on decentralization, composability, or...

Object-Oriented Programming (OOP) is one of the most widely used programming paradigms in modern...

⚠️ How to Handle Errors in Camunda 7 vs Camunda 8 Error handling is one of the most critical aspects...

What diagram-as-code teams change in their workflow to keep diagrams useful, current, and easy to...

Performance is about speed for a single request. If your API takes 2 seconds to respond, that's a...

・The dependency that imports an extra module should depend on the abstract interface, but not the...

Most text layout implementations find line breaks by scanning forward character by character,...

"A capacidade de tratar diferentes objetos através de uma interface comum." 📜 A...

I built a retro JavaScript browser game about fixing tickets while surviving Chuck, a brilliant but socially corrosive coworker. Under the pixel-art UI, it beca

A guide to Deploynix's seven server types — App, Web, Database, Cache, Worker, Meilisearch, and Load Balancer — with real architecture examples.

Introduction Industrial IoT (IIoT) architectures often look clean in diagrams but become...

Node.js Distributed Systems: Consistent Hashing, DHTs, and P2P Architecture Every...

I've been building and fixing Asterisk-based systems for close to a decade now. PBX platforms,...

This post is part of a series of corollaries to the Inglorious Web series. It stands alone, but the...

I've built both. Multiple times. At startups with 3 engineers and at companies with 300. The internet...

I got bored and wrote a circuit breaker A few years ago I was working at a fintech...

Practical patterns for writing idempotent consumers, implementing exponential backoff, and avoiding thundering herd on retries.

1. Introduction Abstraction is one of the core concepts of Object-Oriented Programming...