I will develop pos point of sale software

I'm a Professional Developer and will provide you the inventory management system

it has these features

• Set up multiple businesses in the application.
• No restriction on numbers of businesses.
• Inventory & accounting information is kept separately for each business.
• Create multiple locations for your business/shop
• Manage all of them at the same time.
• Stocks, Purchases, Sell can be tracked differently for locations.
• Customize invoice layout, invoice scheme for each location
• Powerful user and role management system
• Mark contact as customer or supplier or both(customer & Supplier)

Products: 

• Manage Single & Variable products.
• Classify products according to Brands, Category, Sub-Category.
• Add products having different units
• Add SKU number or auto-generate SKU number with prefixes.
• Get stock alerts on low stock.
• Easily add purchases.
• Add purchase for different locations.
• Manage Paid/Due purchases.
• Get Notified of Due purchases week before the pay date.
• Add discounts & Taxes
• Simplified interface for selling products
• Default Walk-In-Customer automatically added to a business
• Easily add business expenses
• Purchase & Sale report
• All Report
• Contact Reports
• Stock Reports
• Other useful feature