Hello Sir/Madam,
I read your project requirement, I can build wild card sub-domain, for every user should have their own sub-domain.
I am an experienced web developer with PHP, MySQL, wodpress, woocommerce, HTML, CSS, Bootstrap, Aamazon Web Service.
I have already done many versatile project like online store with ecommerce, Social media and network, Blog, Forum, simple content management website, CRM, ERP
I hope you like my proposal, please don't forget to contact me.
Regards