Contacted by a recruiter, first round with hiring manager, second and final round doing 4 panel interviews - each with a different theme, ex. culture and impact, project management and problem solving, capabilities and driving results, communication.

Applied online and received an email from a recruiter to set up a phone interview that same week. Phone call went well, very general questions about yourself and why Twitter. The recruiter was very pleasant and let me know that the latest I would hear back with the next steps would be a couple days. Two weeks go by and I hear nothing. During this time I emailed several times politely asking for an update on my candidacy. Silence. Finally another week goes by just for them to FINALLY respond after several un-answered emails saying that someone else who was farther along in the interview process was job offered two weeks prior. I understand the decision and that's fine. My problem is that had I not emailed them multiple times I would've never heard back with a decision or closure. They knew the outcome that the position was filled only a few days after my initial interview and didn't feel the need to share that information with eager, pending candidates. Just felt that it was incredibly unprofessional and did not represent the company and their interview process well AT ALL.