Phone call with recruiter, then 45 min interview with hiring manager, then another 45 min with another system engineer in headquarters then a virtual interview for 4.5 hours. Overall the interviews are not bad, still haven't done the last interview though

Whole process was long. The total of four interviews were conducted. First with Hr, second with Manager, third with all different teams you collaborate with this included presentation all inclusive and separate session with different teams, fourth with Manager