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"How Many Servers Do We Need?" — Back-of-the-Envelope Estimation for System Design

"How Many Servers Do We Need?" — Back-of-the-Envelope Estimation for System Design

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3 min read
What I’ve Been Building While Looking for My Next Opportunity

What I’ve Been Building While Looking for My Next Opportunity

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4 min read
Meta's "Combined Reaction Volume" SQL Question, Explained Simply

Meta's "Combined Reaction Volume" SQL Question, Explained Simply

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3 min read
Apigee X Interview Question: How Do You Store Environment-Specific Configuration?

Apigee X Interview Question: How Do You Store Environment-Specific Configuration?

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2 min read
The 60-second self-introduction that actually works

The 60-second self-introduction that actually works

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8 min read
How to practice system design interviews when you have nobody to practice with

How to practice system design interviews when you have nobody to practice with

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4 min read
The Other Side of the Table: What 10 Developer Interviews Taught Me About the AI Gap

The Other Side of the Table: What 10 Developer Interviews Taught Me About the AI Gap

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11 min read
Everyone Says “Clarify the Requirements” in System Design. But How?

Everyone Says “Clarify the Requirements” in System Design. But How?

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9 min read
How interviewers actually ask Two Sum, and the four follow ups that matter more than the answer

How interviewers actually ask Two Sum, and the four follow ups that matter more than the answer

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2 min read
JavaScript and TypeScript Interview Questions Explained With Real Production Examples, Part 2: Algorithms

JavaScript and TypeScript Interview Questions Explained With Real Production Examples, Part 2: Algorithms

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5 min read
React interview practice: explain a stale search result before fixing it

React interview practice: explain a stale search result before fixing it

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3 min read
How to answer “How would you optimize a slow .NET API?”

How to answer “How would you optimize a slow .NET API?”

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3 min read
Turn an interview question list into a practice session

Turn an interview question list into a practice session

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2 min read
Crack the JavaScript Interview: 20 Core Concepts Explained Like a Chat Over Coffee

Crack the JavaScript Interview: 20 Core Concepts Explained Like a Chat Over Coffee

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4 min read
Stop Grinding the Same 100 Problems: Prep for the OA You’ll Actually Get in 2026

Stop Grinding the Same 100 Problems: Prep for the OA You’ll Actually Get in 2026

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3 min read
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