There is an initial phone interview with HR, in which they ask why you're interested in working at Dataminr, why you'd be a good fit, etc. If that goes well, there is a second interview with a manager in the division you've applied to. That interview has three parts: they ask about your CV, your knowledge of current events, and your knowledge of how to leverage Twitter to deliver news. If that goes well, there is an timed online test in which you are asked to translate tweets in foreign languages into news headlines based on the company's format, which is given.

Had a first interview which went really well, then had a test which went great too, then had an interview with a Senior Director and the interview went really well and I had all the skills required but I was rejected. I was very confused and asked for feedback but never received any. Impossible to get in touch with anyone and the only person who would assist referred me to the HR person who never answered my request. Would recommend that the company and the people they hire put more effort into answering emails and providing a way to communicate with the people who interviewed you.