Our Doha marketplace projects cover platform architecture, seller tools, buyer experience, and launch strategy. Platform architecture (weeks 1-3): building the marketplace foundation. Technology stack: Next.js (frontend — server-rendered for SEO, fast, bilingual-ready), Node.js (API layer — marketplace business logic, payment orchestration, search), PostgreSQL (relational data — users, listings, orders, reviews), Elasticsearch (search and discovery — bilingual Arabic/English search with relevance ranking), and Redis (real-time features — messaging, notifications, availability). Multi-tenant architecture: each seller with their own storefront within the marketplace — customisable profile, branding, and product display while maintaining consistent marketplace UX and trust indicators. Payment infrastructure: Stripe Connect for marketplace payments — the buyer pays the marketplace, the marketplace splits the payment between the platform commission and the seller payout. Seller payouts: configurable per seller (instant, daily, weekly). Platform commission: configurable per category or per seller. Bilingual architecture: every user-facing text in both Arabic and English, with seamless language switching. Content created by sellers (product descriptions, service descriptions): in the seller's chosen language, with optional AI-assisted translation for the other language (reviewed by the seller before publishing). System-generated content (notifications, transactional emails, UI labels): professionally translated in both languages. Seller tools (weeks 3-5): enabling sellers to succeed. Seller dashboard: Arabic-first design (consistent with the buyer-facing platform). Dashboard features: listing management (create, edit, and manage product or service listings with bulk operations for large catalogues), order management (incoming orders, order status updates, shipping/delivery management, and communication with buyers), analytics (sales data, visitor statistics, conversion rates, and revenue trends — enabling sellers to understand their performance), and payout tracking (earnings, commission deductions, and payout history — transparency about the financial relationship between seller and platform). Seller onboarding: streamlined verification process. For product sellers: trade licence upload, CR verification, bank account verification, and product category selection. For service providers: qualification verification, insurance documentation (where applicable), and portfolio submission. Onboarding: designed to be completed in 15-20 minutes — capturing necessary verification data without creating friction that discourages seller signup. Buyer experience (weeks 4-7): enabling buyers to find and purchase confidently. Search and discovery: bilingual search (Arabic and English queries returning relevant results regardless of the language the listing was created in), category browsing (hierarchical categories with Arabic and English labels), location-based discovery (for service marketplaces — showing providers near the buyer's location within Doha), and recommendation engine (collaborative filtering — "customers who purchased X also purchased Y" — and content-based recommendations — similar products/services based on attributes). Product/service pages: rich media (multiple images, video, 360° views where applicable), seller information (profile, rating, response time, verification badges), pricing (clear pricing with any customisation options), and trust indicators (verified seller badge, return policy, platform guarantee). Checkout and payment: streamlined bilingual checkout — guest checkout available, saved payment methods for returning buyers. Payment methods: card (Visa, Mastercard via Stripe Connect), Tabby/Tamara (BNPL — popular in Qatar for fashion and lifestyle purchases), and cash on delivery (with order management workflow for COD collection). Review system: post-purchase review with rating (1-5 stars), text review (Arabic or English), and photo upload. Review moderation: AI-assisted screening for inappropriate content, with manual review for flagged reviews. Testing and launch (weeks 7-10): validating and launching the marketplace. The marketplace chicken-and-egg problem: buyers don't come without sellers, sellers don't come without buyers. We help with launch strategy: supply-first approach (onboarding 20-30 quality sellers before launch — ensuring the marketplace has enough content for buyers to browse meaningfully), curated launch (launching with a selected category or service area — proving the model before expanding. A Doha artisan marketplace might launch with handmade jewellery only, proving demand before adding fashion, home decor, and food), and demand generation (launch marketing — social media, influencer partnerships, and PR in Qatari media to drive initial buyer traffic to the marketplace).