Back2 posts

Blog

Writing on systems, architecture, and things I build.

Apr 10, 2025

Building a Fault-Tolerant Job Queue with Redis and Node.js

How I designed the job queue architecture behind VTU AutoPilot — handling concurrency, session expiry retries, and real-time progress streaming via SSE.

node.jsredisarchitecturebackend

Mar 18, 2025

Zero-Knowledge File Sharing: How PandaShare Encrypts Before Upload

A deep dive into the client-side AES-256-GCM encryption architecture of PandaShare — why the server never sees your file, and how we keep the encryption key out of every network request.

securitycryptographynext.jsarchitecture