Geo-Routed Website with Subdomain Categories

Dynamic Product Listing Website with Subdomain & Location-Based Routing
I'm building a product listing website using CodeIgniter 4 and need a skilled developer to implement the following features:

1. Subdomain-Based Product Categories
Each product category must be accessible via its own subdomain.

Example:

electronics.example.com

furniture.example.com

clothing.example.com

Only products from that category should be visible under each subdomain.
2. Country & City-Based Routing
The website should support country and city in the URL as directories.

Examples:

electronics.example.com/India

electronics.example.com/India/Mumbai

furniture.example.com/USA/New-York

India should be the default country if no country is specified.

Products should be filtered based on the selected country and city.
3. SEO-Friendly Product URLs
Product URLs should be clean and optimized for SEO.

Examples:

electronics.example.com/mumbai/samsung-tv-40-inch

furniture.example.com/pune/wooden-dining-set

clothing.example.com/delhi/men-casual-shirt

4. Shared User Sessions Across Subdomains
A user should be able to log in once and stay logged in across all subdomains.