Full Stack SaaS & On-Demand Service Platform Development using React.js & Node.js

I need a full stack developer to build a custom SaaS platform for an on-demand service business, something we'll use to manage real operations, not just a demo. The stack is React.js on the frontend and Node.js/Express on the backend. You should be comfortable designing the database structure from scratch and building scalable SaaS platforms with dashboards, service management, search, filters, booking/request flows, and role-based access. The core platform will allow customers to browse or request services, manage their accounts, and track service requests, while service providers can manage their profiles, availability, bookings, and job status. An admin dashboard will be needed to manage users, providers, services, transactions, and platform activity. Authentication, permissions, notifications, and responsive design for desktop and mobile are also important. I'm looking for someone with real SaaS or on-demand marketplace experience who understands how to build simple workflows for non-technical users. When you apply, please share a couple of similar projects, a quick note on how you'd approach the platform, and your availability. Ready to start soon, with potential for ongoing work if things go well.