11 · SOFTWARE ENGINEERING · REACT NATIVE · AWS

Fitness Application — Video Loading Optimization

Overview

Diagnosed a major media-loading bottleneck in a React Native / Node.js fitness app and moved video delivery to AWS S3, reducing load time from about five minutes to roughly three seconds per video.

Details

Key result5 min → ~3 sec — video loading time

Links

YouTube demo

Stack

React NativeNode.jsAWS S3REST APIsMobile Performance

50+workout videos

~5 minbefore

~3 secafter

AWS S3media delivery

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A frame from the real application demo. The full video is embedded below.