Everything to prep, in one place

Interview prep resources

Thousands of verified interview questions, worked frameworks and tutorials, organized by company and role. Free to read. Practice every one of them out loud with AI feedback in the app.

Question bank

All questions & answers

Thousands of real interview questions with full model answers: system design, coding, behavioral, finance, product and more. Search and filter by role, category and company.

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Tutorials

Know the framework, nail the answer

The exact structures top candidates use: STAR, CIRCLES, sliding window, the MBB case arc, the LBO walkthrough, A/B test design, each applied step by step to a real question.

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Deep-dive course

Coding & data structures, from first principles

A book-length course, not a cheat sheet: every pattern with the invariant that makes it correct, the complexity argument that makes it fast, and runnable code you can edit. Foundations, hashing and counting, linear structures, sorting and selection.

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Deep-dive course

System design, with the arithmetic left in

The method that survives a real interviewer: requirements before boxes, capacity estimates you can run and edit, a datastore chosen for a stated reason, and the caching failures that take sites down.

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Deep-dive course

Product management, past the framework

Four rounds score four different things. Sizing a segment instead of sensing one, a north star that decomposes, the sample size your experiment actually needs, and taking a metric drop apart before you guess at why.

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Deep-dive course

Behavioral rounds, scored the way they're actually scored

The signals on the form, where the four minutes of an answer really go, a story inventory built by coverage instead of count, and why the same story is a hire at one level and a down-level at the next.

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Deep-dive course

Data science, and the number that can't tell you what you asked

Which of the four data-science jobs a loop is hiring for, a sample size derived rather than looked up, why an excellent ROC-AUC can hide an unusable model, and the censoring bug that turns flat retention into a cliff.

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Deep-dive course

Finance, where the memorised answer breaks on the first follow-up

Which desk's questions you are about to get, the depreciation answer as two expressions rather than three numbers, a DCF whose terminal value turns out to be 76% of the answer, and the exact premium at which an accretive deal stops being one.

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By company

Questions by company

Google, Meta, Amazon, OpenAI, McKinsey, Goldman Sachs and hundreds more: every company in the bank, with how many verified questions it holds.

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By role

Questions by role & category

Software Engineer, Data Scientist, Product Manager, Investment Banking Analyst and more, plus every question organized by category (system design, coding, behavioral…).

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Reading isn't the same as practicing

ChannelPulse turns every question and framework above into a real mock interview: it asks, follows up, and scores your answer with feedback and a model answer.

Practice runs in your browser. See pricing · macOS: if you see a "can't be opened" warning, it's a one-time fix →