Project Description: Multi-Category Marketplace Platform (Similar to Mzad Qatar) I am looking for an experienced developer to build a full multi-category marketplace platform, similar in concept and structure to Mzad Qatar. Core Idea The platform will allow shops, businesses, and individuals to: Register and create their own accounts Add listings (products or services) with photos and videos Appear under many categories from A to Z (electronics, clothing, services, vehicles, real estate, jobs, numbers, animals, etc.) Be contacted directly by buyers (WhatsApp, phone call, or chat) Optionally receive orders directly or redirect customers to the seller Key Features Required Multi-vendor system (each seller manages their own ads) Very large category system (similar to Mzad Qatar, not limited to one niche) Ad posting system (not classic e-commerce only) Featured ads & paid promotions system: Silver: appears between listings while scrolling Gold: appears at the top of category listings Platinum: premium visibility (homepage banners / top priority) Sellers can choose: Category / subcategory Promotion plan (Silver / Gold / Platinum) Duration (1 day, 3 days, 7 days, 14 days, etc.) Admin dashboard to: Manage categories Approve/reject ads Manage featured ads & payments Control banners and homepage placements Monetization Sellers pay for promoted ads Different pricing per plan and duration Payment gateway integration required (can be discussed) Design & UX Clean, modern UI Similar user experience to Mzad Qatar Mobile-friendly (very important) Easy posting flow (step-by-step ad creation) Technology I am open to suggestions, but preferred options: WordPress + WooCommerce + multi-vendor solution OR Custom solution if you recommend something scalable Deliverables Fully functional platform Admin panel Seller dashboard Payment integration Deployment & basic documentation Please share: Your previous marketplace projects Suggested tech stack Timeline Cost estimate Language Requirements The platform must be fully multilingual and support the following languages: English Arabic (RTL support required) Thai Key points: Users can switch languages easily from the interface. Categories, listings, buttons, and system messages must support all three languages. Sellers can post ads in one or multiple languages. Proper RTL layout is required for Arabic. The system should be scalable to add more languages in the future if needed.