B2B Portal turn key design & development

Looking for team of software developer to build a complete application similar to Alibaba, Tradekey till completion. Proper documentation and training required for maintenance and operation. Builder to suggest OS platform, database and web server. Please post your interest then I will forward further details. Conditions: Please provide background on project team experience and project example. Payment will only be provided in phases of development (Mile Stones). A (Non Disclosure Agreement) will need to-be digitally sign before docs are provided. You will be responsible for starting my business from ground up. You must have messenger to constantly stay in touch with me. These are the terms and are quite simple. Thank you!