How can we build such a complicate and fast website like ebay.com?

[Yaong11]

If there is a new company like ebay with their domain and host, how can they build such a complicate and fast website like ebay.com?
Are there any good companies who make for them what they designed? How expensive is it? How can we find website engineers?
Thanks

[Jake]

You can find ready made "Clone" scripts that are supposed to function similar to the real thing. at least they can be a labor saving starting point, here are the first few a search brought up:
http://www.youtube.com/watch?v=_bDy4BEohZM
http://www.zeeauctions.com/
http://www.scriptcopy.com/ebay-clone-script/

You would probably still need a competent coder to whip things into shape, there are many on freelance marketplaces like vworker.com, elance.com, odesk.com
I have heard good things about east European and Russian programmers.

Making such a business a success might require a sustained money losing promotion campaign.

[Abhijit]

eBay is big. Very big. You need to have a strong team of coders and designers to make such a huge and complex web application for you. I would recommend hiring a team for this as outsourcing the project will cost you a lot of money.

You need to start from a small but complete and properly functioning user friendly website developed by your own in-house team. Eventually it will grow as you will add more features to it and one day it will be as big as eBay. Good luck!