Went through multiple rounds of interviews with management, director and technical people. The experience was quite informal every time and happened online and in-person. I haven't visited the office once. Overall impression was good. Ended up not getting an offer.

question about RF And test on instrument and explanation about receiver also they ask me about personal question and then you have personality test .The interviewer is very nice and explained the position to me and there is also an interview with the HR

A director headhunted me on LinkedIn. After the CV screening interview, I was told to prepare an in-person presentation about the industry and my approach to the role. Questions about myself and my presentation were asked. After all of that, I followed up a few times but never heard back from them at all. No email, no call, nothing.