FT Technologies interview questions

The interview was a 30 minute call with the HR and the hiring manager. They asked me to describe my background and what i know about the role, then they moved on to technical questions The HR person arranged for the interview a few weeks in advance and invited five people, howeer only 2 showed up. The HR person did not mention that this would be a technical interview so i was quite surprised when the hiring manager started asking very technical questions. In most engineering companies the technical questions are usualy at a second stage and the first stage they just want to learn about you. The timing format was also too short to get a good idea about the role and also for exchanging information. I would advise the company communicate better what the interview process is and the stages are so that candidates can prepare in advance.