Event Sourcing, Explained: Store What Happened, Not Just the Final State
Here is a question I like to ask in interviews: your bank account shows a…
Tag
#architecture
20 posts
CQRS Pattern, Explained Simply: Split Your Writes From Your Reads
Most of us start our career with one model for everything. The same class, the…
Patterns & When NOT to Use Kafka
We’ve built Kafka up from the log to production. The last and most valuable…
KRaft & Cluster Architecture
So far we’ve treated “Kafka” as a thing that stores partitions and replicates…
A Multi-Broker Framework
Your strategy should care about trading, not about the quirks of a particular…
Architecture & Order Management
Now we assemble the whole thing. A serious retail algo isn’t one script — it’s a…
The Staff Engineer Track — Scope, Influence, Strategy and Judgment
Most engineering courses teach you to build things. This one is about a…
Architecture and Technical Health
Features get celebrated; technical health gets ignored until it’s a crisis. One…
Capstone: Designing Payments for a Real D2C Product
We’ve covered a lot over eleven lessons. In this last one, let’s design the…
The Cluster: Control Plane and Nodes
In the last lesson, the control loop was abstract: “controllers watch and…
Scaling AI Agents in Production
The first agent I put into production handled about 300 conversations a day. It…
What an AI Agent Really Is (and When Not to Build One)
A few months back, a product manager from a lending startup in Gurugram called…
Cracking the System Design Interview
System design interviews are the most feared round in senior engineering…
Node.js Architecture — Event Loop Deep Dive
Node.js powers some of the highest-traffic systems on the internet — Netflix…
Node.js Architecture — Event Loop Deep Dive
Why the Event Loop Matters Node.js runs JavaScript on a single thread, yet…
Message Queues with RabbitMQ and SQS in Node.js
Why Message Queues Message queues decouple producers from consumers, enabling…
System Design Masterclass
System design is the skill that separates senior engineers from everyone else…
How to Approach Any System Design Problem
Most engineers fail system design interviews not because they lack knowledge…
Why Exponential Backoff in Rabbitmq or In Event-Driven Systems
Understanding Simple Message Workflow First, lets understand a simple workflow…
How to Implement Exponential Backoff in Rabbitmq Using AMQP in Node.js
Exponential Backoff in Rabbitmq Please make sure to read first, why we need the…