Apple

I had three different phone interviews, each with one or two engineers from the iPhone systems integration team. They asked several questions about basic circuit design, with no curveballs. Otherwise, they asked more open-ended questions, such as the

Long interview process - 7 rounds (1 recruiter, 1 hiring manager, 5 rounds onsite back to back interviews). Tests the resume, hardware knowledge, coding skills. You might face a reject even if you think you have cleared all the rounds.

It was two phone screens, followed by five to six rounds of in-person, onsite coding interviews. All of them were super technical and required thinking out-of-the-box. Even the manager and senior manager rounds were technical.