Screening with a senior engineer, then two interviews with two principal engineers, then lastly a final interview with the engineering manager, took around 2 weeks for the entire process, every interview had a little bit of technical aspect to it

2 rounds of technical interview. Be strong with Basics, Tester HW Concepts. Strong with ATE testing concepts. Explain debug experience etc ... like what you have encountered. Explain your contribution in debug clearly. Highlight your coding skills