Study tracks

Curated paths for each career stage — patterns, problems, system design, techniques, tradeoffs, and behavioral, sized for the level.

Junior

Land your first or second engineering job. Build pattern recognition for the easy/medium-easy problems that dominate junior loops, learn the Big O basics, and tell good stories about learning and ownership.

~25h·4 modules · 43 curated items

Mid-level

Interviewing for a mid-level role. Expand pattern coverage, get fluent with the most common system design prompts, know the everyday tradeoffs cold, and have stories that show ownership and scope cuts.

~60h·8 modules · 92 curated items

Senior

Full senior loop prep. All patterns, hard problems, the complete SD bank, every production technique and tradeoff, and behavioral that probes leadership, judgment, and strategic thinking.

~120h·8 modules · 27 curated items