Quant Interview Prep Roadmap
A practical roadmap for quant interview prep: diagnose your level, sequence core topics, practice deliberately, and know when you are ready for mocks.
Candidates starting quant interview prep who need a clear sequence instead of a pile of random questions.
Start with a baseline
A roadmap only works if it starts from your current level. Take a mixed diagnostic across probability, expected value, mental math, estimation, statistics, market making, and coding. Tag each miss by method, not by topic label alone, because a card problem can really be a combinations problem and a trading game can really be an expected value problem.
Sequence the core topics
Build the first pass around transferable fundamentals: probability setup, counting, conditional probability, expected value, variance intuition, mental arithmetic, and clear explanation. Add market making and trading games once the math foundations are stable enough that arithmetic does not consume the whole interview.
Use a weekly practice loop
A useful week has one diagnostic or mixed block, two focused repair blocks, one timed block, and one review session. For example, if the diagnostic shows weak conditioning, spend two sessions on Bayes, cards, and conditional probability before returning to mixed probability questions. Volume matters less than whether the same miss disappears.
Concrete roadmap example
A candidate with six weeks might spend week one on calibration and probability foundations, week two on counting and expected value, week three on statistics and mental math, week four on market making games, week five on mixed timed sets, and week six on mock interviews and targeted repairs. The exact order can change, but the loop stays the same: diagnose, repair, mix, review.
Common mistakes
Candidates often collect resources instead of practicing, memorize famous puzzles, or move to timed mocks before the basic methods are reliable. Another mistake is treating prep as complete because a solved problem looked familiar. Readiness means you can solve variants, explain assumptions, and recover when the interviewer changes the setup.
Prep path
Use LeetQuidity calibration to find the weakest bucket, then follow the curriculum or guide topics for that bucket before returning to mixed practice. When misses are rare and explainable, start mocks. If a mock exposes a repeated failure mode, pause broad practice and repair that method directly.
Practice the pattern
Use the LeetQuidity curriculum and calibration to turn this topic into a focused practice plan.