I’m putting together a full-scale online store whose heartbeat is rock-solid inventory control. The build starts with a comprehensive Master Admin Panel—this interface must let me see every stock movement at a glance, configure users, and push data to all other panels in real time. From there the platform fans out into an Admin Panel for day-to-day operations, a Seller Panel for third-party vendors, and a customer-facing website that stays fast even under heavy catalogue loads. Inventory management efficiency is the single most important goal. Two features are non-negotiable: • Stock Inward/Outward workflows that update quantities instantly, whether items arrive at the dock or leave in a parcel • Batch & Expiry Tracking so perishable SKUs never slip past their sell-by date To support those, the Warehouse Management System needs shelf mapping, a handheld-friendly picking flow, and stock-push logic that assigns goods to the best warehouse automatically. Order tracking must surface the same data for both customers and delivery staff, and a payout engine should settle seller balances on schedule. Around this core I also need: – Coupon/offer engine with rule-based targeting – Wallet and multiple payment gateways – Analytics dashboard that ties sales, inventory turns, and fulfilment KPIs together – UI/UX design, database schema, and cloud deployment through to final launch I will consider the project complete when every module is live, the Master Admin Panel reports 100 % accurate stock levels across scenarios, and the customer site passes load testing without performance drops. If you have proven experience building end-to-end e-commerce ecosystems with deep inventory logic, let’s talk technical approach and timeline.