I have the official NAICS, NACE and ISIC tables saved as Excel workbooks and need them turned into something developers can actually use. Your first task is to design a fully-normalised relational schema, load the three code sets into it and keep all original hierarchy and cross-references intact. Once the data is in place, build a proof-of-concept search that shows how the database can be queried from two completely separate Symfony 6 applications: Backend • Symfony + Doctrine ORM expose a JSON-based REST API. • Endpoints must return instant, prefix matches while a user is typing either a code, an industry name or any text found in the descriptions. Frontend • Another Symfony app (no direct DB access) calls the API only. • A single screen with a search box and auto-complete dropdown is enough for the demo. Deliverables 1. SQL dump (or migrations) that creates and populates the normalised schema. 2. Source code for both Symfony projects, clearly separated. 3. README with setup instructions and examples of API calls. If you already know the quirks of NAICS, NACE and ISIC and have paired Symfony with Doctrine before, this should feel straightforward. If you have never worked with NAICS, NACE, or ISIC codes, please do not apply. Please provide real bids only.