Applied online and got an interview call. The first round was about basics of my project implementations. The 1:1 was difficult and quite unexpected as I did not expect DSP related questions. Learnt a lot from this interview process. The questions as such were not difficult, but the position did not specify on DSP requirements so it threw me off guard.

Overall, it was a positive experience as the interviewers were friendly and discussed the solutions which I provided and gave their feedback on why it would work/not work.

One thing I remember to have struggled with is the implementation of the sin function at the hardware level. It took quite a lot of thinking to come up with an optimal solution, and even that was only partially correct.