intermediateSystem Design
Low-Level Design & OOP Interviews
Machine-coding rounds, SOLID, and designing under a 90-minute clock
Low-Level Design & OOP Interviews: Machine-coding rounds, SOLID, and designing under a 90-minute clock.
What you'll be able to do
- Decompose a problem quickly
- Apply SOLID without cargo-culting
- Finish a machine-coding round
Curriculum
Getting started
How this course workspreview
Setting up your environmentpreview13m
Starter repo & setup checklist
Core concepts
The mental model19m
Working through the happy path16m
What breaks in production (and why)
Tradeoffs and alternatives14m
Interactive walkthrough
Applied practice
Building the reference implementation27m
Guided exercise: build it yourself
Cheat sheet, templates & further reading
Build & assess
Knowledge check
Low-Level Design & OOP Interviews: final assignment
Where to go next
Reviews
Imran Sayyed★★★★
The practice sessions are worth it even if the SOLID module is basic.
Pooja Iyer★★★★★
The 90-minute practice format is exactly like the real thing.