Systems Design & Architecture

Most autonomy diagrams lie in the same way. They put one box in the middle and make everything point...

Introduction Immutability is often presented as a best practice: once data is created, it...

Your AI works in a notebook. It fails in production. System design is why. Continue reading on Medium »

Microservices: A Practical Crash Course for Engineers Who Actually Ship Microservices have...

The debate between Monolith vs Microservices is still ongoing in 2026. Continue reading on Medium »

Boss: We need to design a system for realtime streaming of the IPL Finals. Continue reading on Medium »

In the modern Malaysian software landscape, we no longer build “apps” — we build distributed systems. As a senior Application Engineer, my… Continue reading on

If you find this helpful, please like, bookmark, and follow. To keep learning along, follow this...

I solved 847 LeetCode problems. I could design Twitter in my sleep. I failed 19 consecutive interviews. The reason had nothing to do with… Continue reading on S

Three rejections. Same mistake. One framework change. Here’s what Meta actually tests that nobody tells you. Continue reading on Stackademic »

They walked into the system design round knowing exactly what the interviewer was writing down. You probably don’t. Continue reading on Stackademic »

They walked into the system design round knowing exactly what the interviewer was writing down. You probably don’t. Continue reading on Stackademic »

One bad whiteboard session can cost you more than a year of raises — and most engineers don’t even realize it’s happening Continue reading on Stackademic »

Picture a replayed Kafka batch that charges customers twice. The fix is a 60-line idempotency wrapper. Here is the contract every event consumer needs.

What Your Arduino Project Is Missing Isn't a Sensor — It's an Intention Most Arduino...

What Your Arduino Project Is Missing Isn't a Sensor — It's an Intention Most Arduino...

The Story I got tired of staring at traceroute output like this: 1 192.168.1.1 2 ...

In the realm of low-level system architecture and scalable software engineering, relying on a naive Binary Search Tree (BST) is a surefire… Continue reading on

For the longest time, Domain-Driven Design felt like something senior engineers talked about in...

Sagas are state machines with compensations. A working orchestrated order saga in 200 lines of Python, with the compensation-failure cases nobody shows.

A CRUD app does not need two models. The four scenarios where CQRS earns its complexity, and the costs you sign up for the moment you split.

The dual-write problem in concrete terms, then a 200-line transactional outbox in Go: schema, atomic write, relay, idempotency, and the gotchas.

Netflix saves $1 billion every single year with one infrastructure decision that most engineers have never heard of. Continue reading on Medium »

When navigating through Line-of-Business (LoB) applications, you'll notice that most try to follow...

When your profiler swears everything’s fast but your metrics are screaming bloody murder ...

"Choosing between LSM Trees and B-Trees dictates the throughput ceiling of your write-heavy or...

This article covers a few important tips to consider before choosing micro-frontends for your tech stack. I also cover what other tools fit well with it (AI) bu

I used to think I was doing okay in programming. Continue reading on Medium »

The fourth SOLID principle: small, focused interfaces over large, demanding ones. Continue reading on Dev Genius »

Bounded contexts, aggregates, value objects and anti-corruption layer — DDD is the 'why' behind CQRS and event sourcing. Applied to a Go service consuming Binan

Alright, buckle up, tech enthusiasts! Today, we're diving deep into the fascinating world of TiDB, a...

This is Part 2 of a two-part technical write-up. Part 1 ended with the key architecture lesson: A...

Why Your Ultrasonic Distance Sensor Gives You Numbers When What You Need Is Experience ...

https://www.youtube.com/watch?v=4F0dlOMWGHE Monolith or microservices? You've been in this meeting...

The complete guide to microservices architecture real trade-offs, migration patterns, communication strategies, and the brutal truth about… Continue reading on

MVVM — Model-View-ViewModel — is a design pattern that separates your application into three distinct responsibilities. It was popularized… Continue reading on

System Design round where I confidently drew boxes on a whiteboard for 40 and never once did the math on whether any of it would actually… Continue reading on M

I Built a Zero-Backend Kanban Board with React + TypeScript — Here's What I Learned No server. No...

Why the best TypeScript engineers no longer stop at types — they design reliable runtime boundaries that keep real systems honest. Continue reading on Medium »

It’s 4:55 PM on a Friday. Your marketing lead drops a message: “The holiday banner is wrong. It...

For the first three days of the ticket, you barely write a line of code. You read the docs. You open files you don’t strictly need to open… Continue reading on

Nobody writes bad architecture on purpose. That is what makes it so painful when you realize you have been doing it for months. Continue reading on Medium »

A plain-English breakdown for developers migrating from Apollo GraphOS — or just trying to understand...

Introdução Se você já começou a estudar arquitetura de software, provavelmente se deparou com uma...

Modern applications demand scalability, resilience, and real-time responsiveness. Traditional request-response (REST) systems often become… Continue reading on

The smartest engineers often make things look simpler, not more complex. That can be hard to recognize until you’ve seen enough bad… Continue reading on Medium

Navigating Next.js Interviews: A Community-Sourced Guide to Skill Mastery The journey to...

TanStack Start and Next.js both support React Server Components, but their philosophies couldn't be more different. Here's which one to pick for your next proje