We are looking for an experienced Python developer with strong knowledge of the Keepa API to build a system that helps us track and manage Amazon product pages across multiple marketplaces. We have an internal product catalog and want to link our products to the correct Amazon product pages (ASINs) in the following marketplaces: UK, DE, FR, IT, US, and ES. For our existing products, the system should help identify and store the relevant ASINs per marketplace. When new products are added to our catalog, the system should assist in finding possible matching Amazon product pages. In cases where automation does not find the correct match, we should be able to manually add or edit the information. Responsibilities: * Build a Python-based system integrating the Keepa API * Design and implement a database (PostgreSQL or MongoDB) * Store and manage our product catalog together with ASIN mappings per marketplace * Implement logic to match products based on title, brand, or other identifiers (not relying only on EAN) * Support tracking across Amazon marketplaces (UK, DE, FR, IT, US, ES) * Create a workflow for adding new products and retrieving possible Amazon matches * Allow manual input or corrections when automation is insufficient * Ensure the system is scalable and well structured for long-term use Requirements: * Strong Python development experience * Experience working with the Keepa API * Experience designing and working with PostgreSQL or MongoDB * Experience with data matching or product catalog systems * Familiarity with Amazon product structure (ASINs, marketplaces, variations) To apply, please answer: 1. Have you previously built systems using the Keepa API? 2. Which database would you recommend for this project (PostgreSQL or MongoDB) and why? 3. How would you design the system to match products across multiple Amazon marketplaces? 4. Which Keepa API endpoints would you likely use for retrieving and matching product data? Please start your proposal with the word “Keepa” so we know you have read the full description.