I was applied when the office was still located in a cozy private house. The interview took place in the format of a conversation over a cup of coffee. There were three stages of interview.

I was initially called by a recruiter who put me in touch with their European office. I had a grueling 30 minute 'conversation' with a man who could barely speak English, no fault of his own. So I was sure I hadn't done well until I got called into the office. There I was interviewed by the office manager, HR Department, and another recruiter. They sent me an offer soon after. I signed the papers, turned down other job offers, and went forward. EXCEPT... apparently I hadn't actually been hired. I got a mumbled call where the HR person came up with a myriad of excuses for messing up. Ranging from "the [european] office went with someone else" to "we've changed the job description." It was a lot of vague incoherent platitudes. The whole hiring process was chaos and the company seemed to barely be able to keep it's shoelaces tied. They had sent me a BS job offer and backtracked so fast it was mind boggling. The whole process is marred because if you don't speak Russian you're not going to understand half of what the IT team is saying. How could anyone pass a technical test with someone who can barely speak your language and doesn't bother to let he US office know anything. This company wasted my time and cost me other job opportunities.