Series

System Design

System Design Concepts in-detail

System Design - Back-of-Envelope Estimation
The Skill That Separates Senior Engineers from Everyone Else
May 31, 20269 min read
1. Scalability in System Design: Why Your App Survives 10 Users but Dies at 10 Million
Series: System Design Mastery — Day 1 of 15 Reading time: 10 min Covers: Vertical vs Horizontal Scaling, Auto-Scaling, Stateless Design
Jun 11, 20268 min read
2. Availability & Reliability: What "99.9% Uptime" Really Means (And Why It's Not Enough)
The $150 Million Outage On July 8, 2015, the New York Stock Exchange halted trading for 3.5 hours due to a software glitch. On the same day, United Airlines grounded flights due to a router issue. Two
Jun 11, 202610 min read
3. System Design - Back-of-Envelope Estimation: The Skill That Separates Senior Engineers from Everyone Else
The Interview That Changed How I Think About Numbers Imagine you're in a system design interview. The interviewer says: "Design YouTube." Candidate A immediately starts drawing boxes — video service,
Jun 11, 202610 min read
4. Consistency Models Explained: Why Your Bank and Your Twitter Feed Play by Different Rules
Series: System Design Mastery — Day 2 of 15 Reading time: 11 min Covers: Strong → Eventual Consistency Spectrum, Quorum Reads/Writes, Vector Clocks, Real-World Failures The $440 Million Bug On August
Jun 11, 202610 min read
System Design - 5. Latency vs Throughput Latency vs Throughput: Why "Average Response Time" Is the Biggest Lie in Engineering
Series: System Design Mastery — Day 2 of 15 Reading time: 10 min Covers: Latency vs Throughput, Tail Latency (p99/p999), Amdahl's Law, Real Production Lessons The Misleading Dashboard Imagine you're
Jun 11, 202610 min read

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