Backend Developer: Stripe + Supabase + API Pipeline (Node.js/TypeScript)

I need a backend developer to build a report generation pipeline for a digital product. The frontend already exists (React). You're building the backend only. The pipeline receives a payment through Stripe Checkout, processes data through several external APIs in sequence, generates a formatted PDF, and delivers it to the customer via email. Fixed scope, detailed Developer Brief provided after initial screening. Required experience: Node.js / TypeScript (2+ years) Stripe Checkout and webhook integration Supabase or PostgreSQL REST API integration (calling multiple external APIs in a queued pipeline) Puppeteer or Playwright for PDF rendering Job queue implementation (Bull, Quirrel, or similar) Fixed price: $1,500 to $2,500. Timeline: 2 to 3 weeks. Milestone-based payments. Work-for-hire with IP assignment. I have a paid screening task 2-3 hrs ($100-$150) to verify core skills before committing to the full project. In your proposal, please: Describe a project where you built a Stripe webhook that triggered a multi-step backend process. Tell me which job queue system you prefer and why. Confirm you're comfortable signing a work-for-hire agreement before receiving the full brief. Category: Web Development Subcategory: Backend Development Skills tags: Node.js, TypeScript, Stripe, PostgreSQL, API Integration, Puppeteer Project type: Fixed price Budget: $1,500 to $2,500 Duration: Less than 1 month