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Amr Samir

Amr Samir

Amr Samir

Full-Stack Software Engineer

Building high-performance full-stack web applications, scalable architectures, and clean systems with Next.js & Node.js.

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Next.js & React•TypeScript•Tailwind CSS

Amr Blog

Welcome to my Blog

Sharing My Journey in Web Development | Interesting Tools and Methods | And more...

Filtered by:#s3

Secure File Upload Architecture: Direct S3 Presigned URLs & Magic Number Validation

July 13, 20261 min

Secure File Upload Architecture: Direct S3 Presigned URLs & Magic Number Validation

Eliminating server bottlenecks via direct client-to-storage uploads, pre-signed URL generation, magic-byte sniffing, virus scanning, and asynchronous processing.

Backend Engineering

1530

112

#6a85daf80013e0b172566099 #system-design #file-upload #s3 #security

Designing Video Upload & Adaptive Bitrate Streaming Pipelines (HLS/DASH)

July 07, 20261 min

Designing Video Upload & Adaptive Bitrate Streaming Pipelines (HLS/DASH)

System design for large video ingestion: chunked S3 uploads, async worker transcoding clusters with FFmpeg, HLS manifest generation, and CDN edge delivery.

1980

164

#system-design #video-streaming #hls #ffmpeg #s3