Backend Platform for PDF/Image Verification based on OCR MISTRAL

I need a robust backend platform to verify the authenticity of PDFs and images.

Essential features include:

- OCR Automation: Utilize Mistral OCR and openAI and claude API to convert uploaded PDFs or images into structured JSON.
- Integrity Checks: Develop an internal micro-service to inspect PDF/image metadata and detect pixel tampering using perceptual hash and Error-Level Analysis.
- Rule Engine: Implement a Python module to apply payroll rules and return a 0-100 reliability score.
- Usage-Based Billing: Integrate Stripe Checkout for customers to buy credit packs.
- Frontend: Create a React/Next.js dashboard (wireframes provided) that consumes the API.

Ideal skills and experience:
- Strong expertise in Python and micro-services
- Experience with Mistral OCR and open ai and claude
- Familiarity with perceptual hashing and Error-Level Analysis
- Proficient in React and Next.js
- Knowledge of Stripe integration for billing

Looking for a developer who can ensure accuracy, security, and scalability.