Performance Optimizations For Frontend System Design Interviews

Once you’ve wrapped up all the core topics in your front-end system design interview, architectural design, API design, client data modeling, and more, this is your chance to stand out. The last part of your interview is where you shift gears and dive into front-end optimizations. This guide covers frontend performance optimization end to end, using Google’s Core Web Vitals as the yardstick.

When it comes to optimizations, you want to think about every aspect that affects your app’s performance and user experience, but focus on what matters for the specific question you’re solving. This article gives a high-level overview of the most critical optimization techniques you can bring up in any front-end system design interview. Don’t feel pressured to use every method you know; instead, select the optimizations that best fit the scenario in front of you.

Please spend no more than 20% of your interview explaining this portion.

High-performing frontends scale well, respond quickly, and stay consistent across all types of user hardware. If... premium content.