Every big tech loop has at least one behavioural round, and at senior levels it often decides the offer and the level. Twelve modules show how these interviews are scored, how to shape an answer, how to build a small bank of true stories that covers most questions, and what changes at senior and staff level. Each one has an animation of what the interviewer is listening for, a tool to work on your own answer, and an invented model answer you can pull apart.
Coding and design rounds test what you can do in 45 minutes. The behavioural round tests what you have done over years: how you own problems, work with people who disagree, recover from mistakes and lead without authority. Interviewers can't watch you do that, so they listen for evidence in your stories.
| Round | What it measures | What wins it |
|---|---|---|
| Coding | Problem solving under time pressure | A clean, correct solution, explained as you go |
| System or low-level design | Judgement about structure and trade-offs | A design that fits the requirements, with its costs named |
| Behavioural | How you have actually worked, and at what scope | Specific, true stories where your own actions and their results are clear |
Every module has the same ten sections, so you always know where to look:
The idea in plain words, an animation of what the interviewer hears and writes down, then a tool to work on your own answer.
What weak, good and strong answers sound like, and an invented model answer, annotated part by part.
A memory hook, common mistakes, a practice exercise with your own stories, a quiz, and where to go deeper.
Thirty minutes a day, five days a week. Week 1 builds the method, weeks 2–3 fill your story bank against the core questions, and week 4 tunes it for the company and level you're aiming at. Say every answer out loud: a story you've only written down isn't ready.
| Week | Study | Output by Friday |
|---|