Practice by Round
Drills grouped by interview round. Set your level to tune every session.
- CodingPatterns, problems, and complexity, from spotting the pattern to a full solve.Solve · Pattern Triage · Write the Code
- System DesignRequirements, estimates, and deep dives, graded the way senior and staff loops grade them.Components · Deep Dive · Evolving Scenarios
- Low-Level DesignClasses, APIs, and schemas for the object design round.OOP Design · API Design · Database Design
- PracticalCode review, debugging, refactoring, AI-assisted coding, and take-homes.Code Review · Debugging · PR Review Lab
- Behavioral and LeadershipOwnership, conflict, and leadership stories that hold up under follow-up questions.Prompts · Story Bank · Staff Studio
- FundamentalsSQL, security, concurrency, techniques, and tradeoffs.SQL · Security · Systems and Concurrency
- Role TracksMobile, frontend, data, AI engineer, and ML rounds.In Progress
- MockTimed sessions for one round or the whole loop.Interview Simulator · Mixed Timed Drill