The whole process took about 3 months for a Junior SDE position in Luxembourg, starting in January 2022. It was composed of the following:

• Online assessment with 2 coding questions (approximately 1 hour 30 minutes).
• Phone screen interview: one hour where I was asked to develop two functions: newCustomerVisitWebsite(customerId) and int getFirstNonReturningCustomer(). This was basically a slightly modified "LRU cache" problem.
• On-site interview, with four interviews:
  1. Minimum Window Substring problem (Leetcode 76), again slightly modified (the window length is also given as a parameter, and the task was to return if the letters of string t are included in string s or not).
  2. Object-Oriented Design: I didn't prepare for this one, but it was about developing a set of classes to 'report the current battery status of a device'. The problem focused on OO principles, abstract classes, inheritance, exceptions, etc.
  3. Develop classes for Amazon Locker and a function addPackage(). I introduced three classes: Locker{}, LockerStation{}, and Package{} and coded the int addPackage(Locker l, Package p) method.
  4. Word Break (Leetcode 139).

On average, I would say Leetcode Medium.

Half of the interviews were dedicated to coding, and the other half to Amazon Leadership Principles questions.

Amazon does not provide any feedback if you are being rejected, which was my case. It's like a vulture switching to the next corpse when it understands you won't be useful to it. Don't get frustrated. Ask for feedback from your recruiter after every step of the hiring process. We need to put a little pressure on them to get feedback because otherwise, you just lost your time with them, as you won't get any added value from it.

See details in the previous description.