
illustration
System Designer

Persona
Maya Chen
A frontend engineer preparing for senior interviews who needs to turn scattered system-design knowledge into explanations she can defend under time pressure.
Enters at/learn
1 journey
7 scenesFrom one request hop to a timed system-design interview
Maya uses System Designer as a progression: learn one causal model, stress it with real capacity numbers, and then explain a related design under interview conditions.
She begins a timed URL-shortener design session with a request model and capacity language she has just practised.
Web7 scenesRead the journey