You send a message in Slack, and within milliseconds, it appears on your colleague’s screen...
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Search across 92 posts, 11 explainers, and 55 topics
Paxos: The Democracy of Distributed Systems
How a simple voting algorithm keeps distributed systems in agreement
Imagine you’re running a bank with branches in New York, London, and Tokyo. A customer...
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Write-Ahead Log: The Golden Rule of Durable Systems
How a simple log file prevents your data from disappearing into the void
Picture this: You’re transferring $500 to your friend through a banking app. You hit “Send,”...
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Building Distributed Counters for High-Traffic Systems
From simple incrementers to battle-tested architectures that handle millions of operations
You’ve probably implemented counters dozens of times. A simple count++ here, a database increment there....
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How Stripe Prevents Double Payments
Learn the engineering patterns that prevent duplicate charges and how to implement them in your payment systems
You’re checking out online. Click “Pay Now”. Nothing happens. Click again. Boom - charged twice....
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From Manual Testing to Automated Excellence: GitHub Actions
Turn your repository into an automated testing and deployment machine that catches bugs before they reach users
Think of GitHub Actions as your digital assistant that never sleeps. Every time something happens...
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55 Million Requests Per Second: Inside Cloudflare's Magic
Picture this: it’s Black Friday, millions of shoppers worldwide are frantically clicking “Add to Cart”...
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How Uber Finds Nearby Drivers at 1 Million Requests per Second
Picture this. You’re standing outside Select City Walk in Saket, tired after shopping, and you...
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From Panic to Performance: A Guide to Grafana k6 Load Testing
From panic to performance confidence – scripting, scaling, observing, and automating load tests with k6
1. From Firefighting to Foresight
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WhatsApp's Scaling Secrets: A Deep Dive into System Design and Architecture
WhatsApp is a household name, but for software engineers, it’s a legendary tale of massive...
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Prompt Engineering Basics for Software Developers
Prompt engineering is a critical skill for software developers working with AI models like GPT....
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Git Command Line Basics: Essential Commands for Software Developers
Git is an indispensable tool for software developers, enabling version control, collaboration, and efficient workflows....
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Taming Pipeline Chaos: How I Used GitLab APIs and GPT to Analyze Thousands of Failures and Boost Stability
Imagine this: It’s 9 AM, your nightly scheduled CI/CD pipeline has failed again, and you’re...
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