Build an Marketplace for bitcoin/other cryptocurrency Trading/Exchange. -- 2

I made the pages and discussion of the system using html pages for the (user view and admin part) for most of the pages which control the system (I will add them to the programmer team who will be awarded). The code should be handmade, write the code from A to Z, we must not use any known systems like joomla, wordpress,… and so on. I prefer to write the code in python, to be installed in linux servers, using Amazon webhosting…….. The project are splitted into two main parts: • Part A: is similar to [login to view URL], at which user can log in and put advertisements to buy or sell bitcoins or other cryptocoins , this named Advertiser”, another user will enter our site to buy or sell bitcoins or other cryptocoins from available advertisements, this will named “”Trader”” o User register an account in our system, but name ( advertiser and trader) we use them to identify an trade (not an account ) between a trader and advertiser, to know who is the owner of the advertisement and so on. o So it seems to be market place, at which one person can put advertisements, other users see these advertisements. o So normally, let say user A, enter in our website and want to buy bitcoin and pay by paypal, he will search for offers of the advertisements available, if he like an advertisement , he can create a trade with this advertisement, or he can create an advertisement with his condition, or he can try our official exchange (part B) . • Part B: Is an exchange part, this user can exchange his money with our money, like any exchange e-currency system, for example, user can exchange bitcoin to perfectmoney usd according to our rate and conditions. Only Professional programmer who already worked before with bitcoin/cryptocurrencies, and payment systems API, can be bid, others dont bid please. More info in the attached files Payment options : 1- 25%- upfront payment for project confirmation and resource allocation 2- second Milestone 25 % should be created and released after completion of Part A Modules and Features, and so on 3- Third and Fourth 25%- Milestone Escrow created after Part A+Part B Completion before deploying files in live server . 4- Release Third milestone 25 % after deploying files in live server, all okey 5- Release Fourth milestone 25 % after fixing bugs, errors, installing API of payment gatway got acceptance, end of the project 6- We should have an updated version of the code of the system for every update ( as original code copy), to be with us. So as to at any time, there are problem in the system we can install the ( original code copy = Last updated copy of the code of our system). 7- Free support for errors , bugs fixing for 3 months from time of last milestone release Kindly check the attached files