Backend Engineer Required – AI Document Processing Platform (Not WordPress / Not No-Code)

Please read carefully before bidding.

We are building a production-grade AI-powered building inspection report platform. 90% was built in base44 however, base44 cannot parse pdf"s larger than 10MB, so we have hit a roadblock and decided to take another route.

This is NOT:

*A WordPress job

*A Shopify job

*A bubble/no-code job

*A “prompt engineering” job

*A basic CRUD web app

This is a serious backend architecture project involving:

PDF parsing (11MB+ technical reports)

AI defect extraction

Structured data normalization

Repair cost estimation logic

Long-running job orchestration

Background workers / queues

Multi-user concurrency

Production deployment architecture

NOTE: Required Technical Stack (Non-Negotiable)

You must have experience with:

Node.js or Python backend (FastAPI / Express / NestJS)

Background job queues (BullMQ / Celery / Redis / RabbitMQ)

PostgreSQL

Object storage (S3 or equivalent)

Production deployment (AWS / DigitalOcean / similar)

API architecture design

Handling long-running async workflows

Bonus:

Experience with AI APIs (OpenAI / Anthropic)

Experience with document parsing

Cost optimisation for AI workloads

NOTE: The Core Challenge

We process building inspection PDFs (50–70+ defects per document).

Each defect requires:

AI classification

Structured extraction

Cost estimation logic

Controlled pricing variance (not wide AI guesses)

The system must:

Handle multiple reports processing simultaneously

Avoid timeouts

Avoid race conditions

Avoid pricing inconsistencies

Maintain state safely across long workflows

NOTE: DO NOT APPLY IF:

You primarily build WordPress sites

You are a UI/UX designer only

You rely fully on AI to generate your code

You cannot explain how to design a job queue system

You have never deployed a backend to production

You respond with generic copy-paste proposals

NOTE: To Be Considered, Your Proposal MUST Include:

A short explanation of how you would architect long-running PDF processing

What job queue system you would use and why

How you would prevent AI pricing variance issues

Links to similar backend systems you’ve built (real production links)

If you do not answer these specifically, your proposal will be ignored.

NOTE: Project Stage

We have:

Full functional specification

Frontend prototype

AI processing logic concept

Database model draft

We now need:
A serious backend engineer to implement this properly.

NOTE: Important

We are not looking for the cheapest developer.

We are looking for someone who understands:

Scalable architecture

Async processing

Production reliability

AI integration properly

If you are that person, we would love to work long-term.