Hi,

 

What are all the programming languages and design involved in making an equivalent of Ebay?

 

Regards,

Jimmy

You'll need a server-side language (PHP, ASP.NET, Python, Ruby), HTML, CSS, Javascript, a database engine and associated query language (Oracle, MySQL, MSSQL, Postgres), some sort of load balancing proxy and a lot of expensive servers, each tuned to a particular task (web, database, etc).

 

Information Architecture, UI/UX and interface design are a handful of the disciplines you'll need.

 

You'll also need a six figure budget.