Java Backend Developer for Web Builder

I am in need of a skilled Java programmer with experience in CSS, Backend Development, and Rails. The main focus of the project is the development of a backend system for a web builder application.

Key project requirements include:
each website will be given a unique subdomain

web sites main domain will be mapped to this subdomain (Ex: www.mysite.com -> www.mysite.websitebulder.com) and option to connect domain

cart and products page and drag and drop elements same like shopify
and themes page and plugins


Ideal Skills:
- Java
- CSS
- Backend Development
- Rails
- Web Builder Development

If you have the necessary skills and experience, I'd love to hear from you.