I had two telephone interviews, each one about my previous experience and motivation to work for Twitter, as well as experience in social media campaigns and the advantages of Twitter vis-a-vis other media

The interview process had four phases. First, I had an initial phone screening with HR. The second step was a phone interview with my eventual Manager. The third step was a series of 30 min interviews with the team, there were four total. And finally there was a presentation to the full team. I presented to an audience of 15 people.