3 rounds of interviews: first interview with directors, second 5 hours technical interviews with different people: managers, scientists and engineers. Then, an interview with the CEO. 3 letters of recommendations sent. At the end a call from the hiring responsible to tell me that I am selected for the job but they should wait for a contract with a big company. Didn't hear from them after that call (2.5 months). I tried to contact them but they do not reply to my e-mails. If you care about your career, think twice before signing for them.