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Lessons from building real systems — written for engineers, recruiters, and anyone who likes to understand the why behind technical decisions.

2025·5 min read

Why I Used Signed URLs for File Uploads in AWS S3

Building a video streaming platform forced me to rethink how file uploads work. Here's why routing uploads through the backend was a mistake — and how signed URLs changed everything.

#AWS#S3#Node.js#System Design

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