Create a Payed Subscription Directory with Userprofile on WordPress

Hi you All, I´m familiar with WordPress, PHP, Javascript, jQuery, CSS etc. but I´m not a professional and always running into performance issues. I´m looking for someone who can help me build this Prototype for me. The Focus is on the Backend development and Performance. In a later stage, a Moblie App (IOS / Android) integration is planed aswell. So candidates with node.js expertise are very welcome to join the Audition. The Milestones are: - User Login/Registration for three Roles. Agencies, Customers and Contractors - User Profiles for each Role + Contractors can create Projects (Custom Post Types) and upload Media Files to that Project. - Payment Gateway Integration (Woocommerce Subscription or PMPro). Contractors should be able to apply to 3 different Membership Subscriptions. Free / Silver / Gold Free - Ability to create a Profile Silver - As "Free" and a better ranking in Search Results. Gold - As "Silver" + Top Ranking in Search Results. - Performant Search Queries (up to 20.000 Entries) + Geosearch via City-Code and Radius - SEO URLs - Multilanguage Support - Frontend Not decisive but, as I´m based in Berlin it would be great if some locals are joining the audition.