Skip to content
← All projects

August 2024

S3 Presigned URL Secure Upload System

Cloud Security Engineer

Overview

A secure way for users to upload large files straight to cloud storage without passing through the application server.

What I did

  • Issued short-lived upload links from a serverless function
  • Scoped permissions per user
  • Added cleanup and monitoring

Main tools

  • AWS Lambda
  • API Gateway
  • Amazon S3
  • IAM