A recent Washington Post story observed that Twitter loves open source. Twitter’s not the only ones. Most, if not all, social networks are built on top of Linux and open-source software.
When the writer wrote that Twitter loves open source he wasn’t exaggerating. He was quoting from Twitter’s About Open-Source page. There, Twitter states that, “Twitter is built on open-source software-here are the projects we have released or contribute to.”
It’s quite a list of C++. Java, Ruby, Ruby on Rails, and Scala programs. If you dig deeper, by looking at Twitter’s job postings, you’ll see Twitter also makes great use of the standard LAMP (Linux, Apache, MySQL, and Perl/PHP/Python) stack. In particular, being able to demonstrate that you’ve been open-source contributor is a big plus for many Twitter jobs.