Hard to get in touch with recruiter even after being screened by them in person. Three rounds, HR screen (which I skipped), tech interview, panel presentation. Simple foundational tech questions on electrical concepts and PCB design.

1 HR interview with 2 technical interviews. Technical interviews covered basic electrical concepts as well as programming. More difficult questions related to RF and interrupts were sprinkled in. It seems these questions were to test breadth of knowledge and performing under pressure.