Systems Design & Architecture

Your API just shipped a breaking change. /users now returns fullName instead of first_name +...

This article argues that reliable event-driven systems should be designed for replayability as well as uptime. It introduces the concept of Recovery Contracts,

MVC is the first thing anyone learns about Rails and the last thing people actually get right. The...

This massive technical bottleneck creates a frustrating data freeze across your active workflows. For instance, many system builders face… Continue reading on M

A practical look at Google Research’s linear elastic caching work in Spanner.

Every computer requires an Operating System to function. Without it, a computer is just a pile of metal and silicon. Continue reading on Medium »

Bu belge, PastryFlow şube yönetim sistemindeki stok takip mimarisinin statik mutasyon modelinden, defter/hareket tabanlı dinamik yeniden… Continue reading on Me

I solved 100+ System Design problems before I learned this framework

A skeptical review of Critical Code Studies (Marino, MIT Press). No methodology, lots of hype. With PDF link and citations.

In the modern digital workflow, information is scattered everywhere—source code repositories, PDFs,...

1. The Core Problem - Why Virtual Memory Exists Without virtual memory, every program...

When I encounter a system or data design decision I'm unsure about, I endeavor to ask the same thing:...

Originally published at malaymehta.com The Interview Trap If you look at most system...

I Spent Three Years Writing Code That Worked. In Rust, Java, and Python, I Was Doing It Wrong. Continue reading on Systems Engineering Notes »

You're building a B2B SaaS product. 50 enterprise customers. Each one wants their data isolated. Some...

In the first part, we discovered that scalability isn’t about buying bigger servers — it’s about designing systems that continue working… Continue reading on Di

Vending Machine System - State Pattern Implementation This is an implementation of the...

https://dev.to/krupali_gadhiy Left a comment that felt like a good way to end this series. They asked...

https://dev.to/krupali_gadhiy Left a comment that felt like a good way to end this series. They asked...

System design interviews are hard because they're open-ended. Here's exactly how I'd walk through...

This series of guides serves as both a learning resource for those new to microservices and a reference for experienced practitioners seeking to adopt .NET late

What does it take to teach an HTTP server to speak a protocol that isn't HTTP at all? Not "add a...

Recently, I worked on an issue in Apache SeaTunnel where a job could sometimes stay in the CANCELING state forever after a user requested… Continue reading on M

June 26 2026 Programming languages Choosing the right programming language for backend...

A structured framework for evaluating production systems across 12 dimensions — from architecture and security to AI readiness. Includes a scoring model used in

Introduction: The Challenge of Liquid Damage Liquid damage to electronic components, especially...

The pattern isn’t broken. The assumptions behind it are Continue reading on CodeX »

Sometimes the most elegant software architecture was designed centuries before software...

Have you ever stared at a bulky, 3-prong laptop charger and thought: “Why is this extra pin even here?” Continue reading on Medium »

Part 4 of the 30 Must-Know System Design Concepts. Learn how to handle explosive growth, distribute traffic intelligently, and scale your… Continue reading on M

Part 4 of the 30 Must-Know System Design Concepts. Learn how to handle explosive growth, distribute traffic intelligently, and scale your… Continue reading on M

You’ve used Amazon a thousand times. You click “Buy Now,” and within milliseconds — your order is confirmed, a warehouse is notified, a… Continue reading on Med

Most discussions around MCP focus on tool calling. That is natural. When people first see MCP, the...

When people build their first permission system, they often start with roles: admin, regular user, member, guest, super admin. The role… Continue reading on Med

Interoperabilidade em Sistemas de Saúde Pública: Desafios para Integração, Segurança e...

Classes, Objects, and Methods in Java When you start learning Java — or any...

How hypermedia removes the coupling between who defines the data and who displays it Continue reading on Medium »

Walk onto almost any factory floor today and the machines are coordinated by a small, rugged...

How clients, servers, databases, caches, and queues fit together, and what really happens when you tap a button. Continue reading on Medium »

How endless feeds work — from scroll math to the IntersectionObserver. Continue reading on Medium »

Overview In Week 4, I focused on a topic that every distributed system eventually...

Throughout my career, transitioning between CTO roles and, more recently, focusing purely on...

Hey all, I am looking for some advice regarding an application I am developing for a charity as part of a university project. The db will have up to 1000 - 1500

How PainTracker.ca uses local-first design, offline support, and user-controlled exports for sensitive pain tracking.

A low-level networking analysis of custom packet structures, Selective Repeat ARQ window flow controls, and congestion-throttling over UDP.

A compiler engineering guide to tokenizing source code, constructing Abstract Syntax Trees, managing lexical scopes, and runtime call stack evaluation.

This is one of the most important concepts when learning NgRx Signal Store. Continue reading on Medium »

Data Oriented Design is the practice of building code that's optimized for the hardware it runs on. Entity Component Systems help writing DOD-friendly code by l