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🎯L3 · 6 modules · 100 lessons

Interview Prep

LeetCode patterns in Python + behavioral STAR

100 lessons across 6 modules: Big-O & easy patterns, arrays/strings/two-pointer, trees + graphs + BFS/DFS, DP + heap + tries, system design + STAR behavioral, plus concurrency/OS/ML interview topics and a full mock-onsite capstone.

Browse all 100 lessons →Try the first lesson — no signup
100
lessons
6
modules
4
capstone missions
18
languages
What you'll learn

From day one

  • Big-O fundamentals + complexity drilling
  • Two-pointer + sliding window + hash maps
  • Trees + graphs + BFS/DFS + topological sort
  • Dynamic programming + heap + trie + Fenwick tree
  • GIL + asyncio + threading questions
  • ML interview topics + bias-variance + train/test discipline
  • System design rounds: capacity, sharding, caching
  • STAR behavioral framework + 8-10 ready stories
  • Mock onsite capstone + closing-question strategy
Curriculum

6 modules · 100 interactive lessons

#1Module 1 · Big-O & Easy Patterns
#2Module 2 · Arrays, Strings, Two-Pointer
#3Module 3 · Trees, Graphs, BFS/DFS
#4Module 4 · Dynamic Programming & Heap
#5Module 5 · System Design & Behavioral
#6Module 6 · Concurrency, OS, ML Interview Topics
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Frequently asked

How is this different from LeetCode?

LeetCode is a problem set. This track is a curriculum — patterns first, then problems organised by pattern. You'll see the same 8 shapes (hash map, two pointers, sliding window, stack, BFS/DFS, heap, binary search, DP) over and over.

Does it include behavioural prep?

Yes — STAR framework, 3-story rule, anti-patterns. The mock-interview drill has a behavioural mode.

What level does it target?

Junior + mid Python interviews (FAANG-adjacent + scale-up engineering orgs). Staff+ is partly covered by Senior Deep-Dives + System Design.

Is the mock interview AI-powered?

Yes — Claude plays the interviewer. Three modes: behavioural, technical-junior, system-design. Adaptive probing. Offline 15-question bank available without an API key.

How long should I spend per day for an upcoming interview?

1.5h focused beats 4h scattered. The track's 6-week plan assumes 6-8h/week. For the last week before an onsite, 3 mocks + re-walk through your 2 strongest projects.

First 15 lessons free, no signup

All 100 lessons unlock for $12/month or $89/year. 7-day free trial — card required, cancel in 1 click anytime in Settings.

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