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v4.0
SS
SysScale
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LV 1
Level 1 — Intern 0 / 100 XP
Today's Mission
Quick Start
🎯
Mock Interview
35-min timed session. Pick a system, work from memory, check your answer.
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⚡
Estimator
Tune sliders — watch traffic, storage, bandwidth, and architecture update live.
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🧠
Fundamentals
CAP theorem, consistency, replication, load balancers — foundations every interview tests.
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📖
Reference
Capacity constants, latency numbers, throughput limits. Keep open in another tab.
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🏢
Company Intel
Rubrics, top systems, insider tips for Google, Meta, Amazon, Netflix and more.
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Learning Tracks
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Achievement Unlocked