I applied online. The process took 4 weeks. I interviewed at Amazon (Duluth, GA) in Jul 2019
Interview
Filled out an application online, instant notification of approval, picked my shift on a Saturday, went to a new-hire event about a week later with about 50 other people. Took a drug test there, took my employee photo. The whole event took about 2 hours. You watch a power point presentation of how it will be to work in their warehouse. Was told they would be in touch via e-mail. Waited for my new-hire packet and information.
No interview at all, you go into the hiring center, take your drug test, fill out some preliminary paperwork, verify the building and schedule you want, your start date and that's it.
Not too bad pretty easy and straightforward, simple question surrounding handling and moving. Make sure you know basic safety rules as they will ask you, for example how do you carry heavy items.
Apply online, go to the on-site office for oral drug swab and ID picture. Start date is assigned once background check comes back. The actual start date will depend on how fast the check comes back but isn't normally delayed.