NestJS Developer — Bunny.net Upload Module Security Review & Hardening

We use Bunny.net (CDN + video storage) for file and video uploads in our NestJS backend. Need a senior developer to quickly review and harden the upload module before production. Files to review (3 files): upload.controller.ts — check auth guards, file type/size validation, error handling bunny-storage.service.ts — API key management, .env usage, edge cases bunny-video.service.ts — same as above, plus video upload flow What we expect: Written findings (what's missing or risky) Apply fixes directly to the code Should take 2–4 hours for an experienced dev Tech stack: NestJS · TypeScript · Bunny.net API Requirements: NestJS production experience Familiar with file upload security best practices Fast turnaround — this is a small, well-scoped task Budget: Fixed price. Open to offers.