The Interview Loop
Run a full round against a timer that will not wait for you to think in silence.
A deliberately vague prompt. Cut it to something buildable in eight minutes of questions.
Build a high-level design in twelve minutes. The interviewer interrupts twice.
Every choice you make is challenged. Hold the good ones and abandon the bad ones out loud.
Negotiate against a recruiter who has a band, a deadline and better information than you.
The other tracks
The machine and the network under every diagram · 5 modules · 23h
Where the state lives, and what it costs to keep it · 6 modules · 30h
Making the second request cheap · 4 modules · 16h
Decoupling two services without losing a message · 5 modules · 21h
From one box to a fleet, without a rewrite · 5 modules · 17h
What happens on the worst day · 5 modules · 18h
The six systems you will actually be asked to draw · 6 modules · 22h
