Google

Applied online with an employee referral. Completed a coding challenge, phone interview, and then they flew me to Mountain View for an onsite interview. This consisted of four 45-minute interviews and a lunch with an employee.

Google Foobar is great. Just use it to do the Google coding challenge. After finishing the first three levels of the challenge at a reasonable speed, it will ask for your personal information. A recruiter will then contact you later.

It was a standard tech interview, basically LeetCode problems. It included data structures and algorithms, all conducted via a custom applet. It was educational material, and I learned things.