面的是 SDE2，或者L5
OA
- https://leetcode.com/problems/two-sum/ 变种，参考 Amazon Online Assessment 2019 - Two sum closest
- BFS 问题 Treasure Island， 见 亚麻 SDE1 OA 近期全集
- 做完多出30分钟
L6 店面
面试官是 senior
- LP: Describe your most impactful project.
- https://leetcode.com/problems/trapping-rain-water/
- 我真的很喜欢这个面试官，感觉他非常厉害。这次面试也很顺利。然而，面试官并不认为我达到senior级别，我很失望。猎头问我是否可以面 SDE2，我同意了。
Onsite 第一轮: Design Question (By a manager)
- LP: Give me an example of when you showed initiative and took the lead.
- LP: Tell me about one of your recent projects.
- Design LinkedIn.
- It went well, I think. The interviewer was not very responsive, so it was hard for me to tell if he liked the solution or not.
Onsite 第二轮: Coding (By a manager)
- LP: Give an example of a tough or critical piece of feedback you received.
- LP: Talk about a time you disagreed with a plan of action.
- https://leetcode.com/problems/course-schedule-ii/
- It went very well too.
Onsite 第三轮: Coding (Bar Raiser)
- LP: Tell me about a decision for which data and analysis weren’t sufficient to provide the right course and you had to rely on your judgment and instincts.
- LP: Tell me about a time when you were wrong.
- https://leetcode.com/problems/first-unique-character-in-a-string/
- Followup: What if instead of a string it is a continuous stream. Can you return the 1st unique char at a given time? (meaning can you do it in one pass?) I did it using a queue.
- https://leetcode.com/problems/implement-strstr/
- Followup: How to make the implementation O(n)?
- Followup: What if the big string is sorted.
- It went really really well.
Onsite 第四轮: Coding (Senior Engineer)
- LP: Tell me about a time when you had to step up and disagree with a team members approach.
- LP: If your direct manager was instructing you to do something you disagreed with, how would you handle it?
- It was a open ended question, similar to https://leetcode.com/problems/reorder-log-files/ . I was having hard time understanding what the interviewer wanted. At the end, I came up with a resonable solution and the interviewer seemed to be ok with it.
- I ended up getting an offer for the team of this interviewer. So, I guess it was not as bad as I thought.
面完两小时告知offer。
Offer 细节: $210K ($155K base/$50K bonus/ rest stock). 一样也是4年的RSU。 猎头告诉我，他们可以加到24万美元。我拒绝了这个offer，因为它低于我的期望。
我得说，我在亚马逊的面试经历非常棒。猎头很好，与面试官的对话非常不错。