Mockrounds Blog
Crafted by Industry Experts. Calibrated for Every Level.
System Design, API Design, Low Level Design, DSA, and Behavioural guides with answers calibrated from student to Staff engineer. Practice it live when you're ready.
Behavioural
Coding
Low Level Design
Mock Practice
System Design
System Design
Design a URL Shortener: A Level-by-Level Interview Walkthrough
A deep TinyURL/bit.ly system design walkthrough scored the way real interviewers score it, with exactly what a Mid, Senior, and Staff answer must say at each decision and the follow-ups that separate them.
29 min read
System Design
How to Approach Any System Design Interview (A Repeatable Framework)
A step-by-step framework for system design interviews covering requirements, estimation, API, data model, high-level design, and deep dives, with what interviewers actually score.
4 min read