Development of two-sided Platform with Node.js & React / Svelte | Long Term

I need a functional platform in which one side can create competitions including attractive incentives for the winner(s) and the other side can participate in these competitions. The competitions do not take place on the platform itself (so no gaming elements are necessary), but the platform is used to market and manage the competitions. If it works, this platform could offer a solution to the chicken and egg problem that plagues many startups and platform markets. Development should be done with Node.js and React / Svelte. For the development of this prototype, a functional design is initially sufficient (professional graphic design will be added at a later stage). You will get wireframes explaining how design and functionality should be. The focus is on the profile system as well as the admin panel. A payment system must be integrated (probably Stripe). Automatic emails of various types must be sent to the appropriate people if certain requirements are met. A manual step must be installed for control after someone created a competition, in which I give my consent so that a certain competition can be started. Everything else follows from the wireframes and more detailed explanations. Good documentation standards in your code are assumed. I'm looking for someone who can start soon and work full time on this project. Experience with projects with multi-sided profile systems and platform character would be helpful (but no knockout criteria). Please let me know your actual hourly rate, my given range of $2 - $12,345 / h is intentionally not meant to be any guide. I'm looking for a developer who I can also do future extensions of the same project with, as well as other similar projects.