Java Service-Booking E-Commerce Site

I am building an e-commerce webpage in Java focused solely on selling services rather than physical or digital goods. The platform has to feel seamless to a client who lands, chooses a service, books a time slot, pays, and leaves feedback—all in one visit... (Budget: ₹1500 - ₹12500 INR, Jobs: Database Design, eCommerce, Java, JavaScript, JSP, Payment Gateway Integration, PHP, Spring Boot)