Build Web App with n8n, AWS, Stripe, Thirdweb

I’m building a platform that allows writers to upload their manuscripts, generate a structured “story world” record, and receive a verifiable blockchain authorship record. Projects can then be listed on a marketplace. I’m looking for a developer experienced in automation builds (n8n), with working knowledge of AWS, Stripe, and basic blockchain integration (Polygon / Thirdweb). Core User Flow (End-to-End): 1. User signs up / logs in 2. User fills in a simple form (story details / metadata) 3. User uploads manuscript (PDF) 4. User pays via Stripe 5. Backend workflow: * File stored securely (AWS S3) * Metadata saved (database or structured storage) * Unique record generated * Digital verification recorded via Thirdweb (Polygon) 6. User sees confirmation + simple dashboard (“My Projects”) Tech Stack Requirements: Automation Layer: n8n (core orchestration of all workflows) Frontend: Simple UI (Lovable - FRONTEND ALREADY DESIGNED ON LOVABLE - WILL BE MADE ACCESSIBLE TO INTERESTED PARTIES FOR A BETTER UNDERSTANDING OF USE Backend / Storage: AWS S3 (PDF file storage) Basic database (Supabase / Firebase / simple backend) Payments: • Stripe integration (one-time payment per upload) Blockchain Layer: • Thirdweb (Polygon) • Record creation (no complex smart contract needed) • Store proof of submission (not full file) -- n8n Workflow Expectations: You will build automated flows such as: • Trigger: User submits form + payment • Store file → AWS S3 • Generate unique record ID • Send metadata to database • Trigger blockchain record via Thirdweb • Send confirmation email to user All workflows must be: • Clean and documented • Editable by non-developer (basic handover required) Deliverables: • Fully working MVP (end-to-end flow) • n8n workflows set up and documented • Deployment (live and usable) • Basic admin visibility (view submissions) • Short Loom/video walkthrough of system Budget: Max: $3,000 USD In Milestone-based payments Timeline: 4 weeks preferred Ideal Candidate: • Has built MVPs quickly (not overengineered apps) • Strong with n8n or similar automation tools • Experience with AWS S3 + Stripe • Basic Web3 integration experience (Thirdweb ideal) • Can think practically and suggest simplifications To Apply: Please include: 1. Example of an n8n workflow you’ve built (screenshots or Loom) 2. Example of a project with file uploads + payments 3. Any experience with blockchain / Thirdweb 4. How YOU would approach building this simply 5. Estimated timeline I am not looking for a large team, and definitely not an agency. I’m looking for a practical builder who can move fast and keep things simple, and can communicate well with me on a regular basis via Zoom meetings, etc/ This project may lead to ongoing work.