It was a phone interview with HR. It was in Hebrew For Deep Learning Engineer - Customer Facing role. HR asked about my background and experience. And carefully checked all relevant topics to the job

Interview process was fast and concrete - started with a get-to-know talk (of both candidate and company sides), moved on with a technical interview (which the subject of it was given to me few days before so I can prepare for the specific questions. Afterwards i've asked to read a paper then we had a talk about it, following some questions about my understanding of it. Technical - programming interview which was on-site, had a time limit (so it was not like the time consuming home tasks which can last forever) and was very productive and comprehensive. HR interview, CEO interview and an offer. Although process sounds long, it took about 2 weeks end-to-end because of Deci's efficiency and cut-to-the-chase approach.