Learn and Practice
A focused home for interview prep, with structured learning and hands-on practice built to move you from concepts to confidence.
Structured lessonsHands-on drillsCurated scope
33 lessons75 questions
System Design
Deep dives on architecture, tradeoffs, and scalable thinking.
Blind 75
Community-curated set of core algorithm questions.
Tracks
Choose your focus
Choose a learning track or jump straight into practice based on where you are in your prep.
Learn33 lessons
System Design
Deepen architectural intuition with building blocks, tradeoffs, and full interview-style case studies.
Start learning→
Practice75 questions
Blind 75
Sharpen algorithm fundamentals by practicing a community-curated set of core algorithm questions.
Start practicing→
Coming soonIn progress
Product Architecture
Design systems from the client's perspective: contracts, API boundaries, and usable interfaces.