I applied online. I interviewed at Viettel R&D in Apr 2022
Interview
1-hour session with manager and mentor. Asked to speak English for self-introduction, then basics questions regarding course taken at uni, basic signal processing algorithms, willingness of continue working after internship period.
7 rounds and 2 month probation (include IQ test, English test, technical test, technical interview, career orientation interview,v.v). However, the process is too slow, it takes about 2 month. This company recruits only Vietnamese people