Systems Design & Architecture

Adding a column is a migration. Adding a state to an Order aggregate is an evolution. They look alike, but the failure modes and rollbacks are not.

TenantId in the domain, tenant-aware adapters at the edge. The seam that turns cross-tenant leaks from a code-review problem into a compile-time one.

When people think about working in a CRM, they usually think about features such as, form, dashboards, workflows. Continue reading on Medium »

In today’s fast-paced engineering and manufacturing world, precision is everything. Whether you're...

Using the wrong form of synchronized doesn't throw an exception. It silently corrupts data under concurrent load. Here's what each form… Continue reading on Sta

While working with large enterprise GIS datasets in ArcGIS Pro SDK, one issue I frequently...

An Order is one aggregate. Customer plus Orders plus Invoices is not. Where the boundary goes decides whether your writes survive Black Friday.

Order, Catalog, Billing, Identity are different domains. They should look different in your namespaces, your tables, and your tests.

I'm going to argue that the most important chart in an agent cockpit isn't accuracy, latency, or...

TL;DR I spent the last several months building Jda — a self-hosted systems programming...

Living Systems as the Benchmark for Scalable, Resilient, and Self-Learning...

The cockpit I built has to work in four different operating modes without code changes. Live cloud...

The role of an engineering leader who can build a platform team from scratch is becoming increasingly...

Recently, I ran an experiment across several of the projects I’ve been building. The focus of that...

In the first post of this series I talked about the dual-write problem on the producer side — the...

Use layered thinking to place logic in the right part of your application before it turns into a mess.

title: "Welcome to the Distributed Systems World — The Challenges Nobody Warned You About" published:...

This is Part 2 of the Core Rust Concepts series. If you haven't read Part 1, start there — it covers...

Don't Let Your Services Go Rogue: Mastering the Circuit Breaker Pattern Ever feel like...

Ports, adapters, use cases — they earn their keep. Sometimes. The other times, the ceremony costs more than the coupling it prevents.

The Go scheduler is one of the most sophisticated pieces of the runtime. It manages thousands of...

When your Go program creates a struct or a slice, where does that memory actually come from? The...

There comes a point in every system’s life where things start to break; not because the system is...

1. The Origin of the Dual-Thread Architecture When WeChat first introduced Mini Programs...

The first time Carbon compiled my code successfully, I smiled. Continue reading on Medium »

Most codebases don't have accurate architecture documentation. Either it was never created, or it...

Real software isn't separate front-end, back-end and infrastructure components. They must work together seamlessly.

The Navigation API is a new interface for managing client-side navigation in single-page applications, now available in major browsers as of January 2026. It ad

Solving the classic Dining Philosophers problem with Permits and Condition Variables. Continue reading on Medium »

Every representation of a system is partial — capturing some knowledge dimensions while omitting others — and the question is not whether… Continue reading on M

The Problem Everyone Faces Continue reading on Medium »

ByteByteGo or Hello Interview? Which one are you using for coding interview preparation in 2026? Continue reading on Javarevisited »

By Terence Nashawn Glenn | The Architect Continue reading on Medium »

Building a great product often means scaling your internal tooling. But as a company grows, a common...

Microservices became a meme. SCS is the pattern indie builders should look at first. Continue reading on Medium »

It is common to build backend architectures around horizontal layers. We separate systems into familiar tiers like presentation… Continue reading on Medium »

Comment DDD, l'architecture hexagonale et Spring Modulith te permettent d'utiliser Claude,...

Microfrontends sound amazing on architecture diagrams. Continue reading on Front-end World »

The rules that hold underneath the spec and the loop. Four locality principles, three contract principles, three quarantine principles. Plus what the audit corr

Most Angular apps fail scalability because the frontend was never designed around the business itself. Here's how Domain-Driven Design fixes that — with Nx, Sig

The BFF Pattern: Your Frontend's Best Friend in the Microservices Maze Ever felt like your...

Some of the best engineering decisions I’ve made weren’t inspired by architecture books, design...

Plenty of tools will scan a codebase or platform and hand you a graph : dependencies services packages tables endpoints ownership tags That can be genuinely use

Why Your Server Dies When Three Users Show Up Continue reading on Medium »

Qué son los patrones de diseño, por qué importan más que nunca, y ejemplos reales en Java y TypeScript: Singleton, Strategy y Observer explicados sin academicis

When building distributed systems or breaking down an existing monolithic system, managing...

7 TypeScript Patterns I Use in Every Project These aren't groundbreaking. They're the...

When I first started learning system design, one term appeared literally everywhere → Distributed Systems Continue reading on Medium »