There is site on which we log in and scrap data. Each page is a profile ... and we fetch name email and 3 other details from each page ... then it goes to the next page ...
Now the script we have written fecth 120 results in 5 minutes.
To fecth the 4 million results we need months ... I need a scraping expert to write a script in such a way that the project is complete is 2 weeks maximum, like using multithreading.
You have to be expert in data scraping and crawlers.
P.S. please don't bid if you are form India or southeast asia.