Hey there!
I have read your requirements and I can build the Management portal with described functionality.
My previous projects included:
- Custom web development ( PHP, JavaScript, Laravel, .ASP, .NET )
- Landing page.
- E-commerce.
- WooCommerce.
- Online shopping stores.
- Shopify
- Wix
I will not be done with your project unless you get satisfied, because I always want to build long term business relationship.
Regards