The purpose of these interviews are to assess whether or not you would be a good cultural fit for the company and would be effective at accomplishing your goals. They are designed to predict your future on-the-job performance by assessing how you handled specific, real-world situations in the past. It goes beyond the technical and product sense questions (like "How would you design X?") to evaluate the essential "soft" skills required to lead a product without direct authority.
Good PM’s are great leaders and communicators and work well with others to get stuff done. Each company has a different culture and set of values. How you get stuff done at each company can be very different. As a result, these questions can be the most wide ranging. These questions often focus most on your past experiences. However, they sometimes involve hypothetical questions as well.
There are several different frameworks that you can use to effectively communicate (e.g., Situation, Task, Action, Result; Situation Behavior Impact) but one that tends to work well is the following (Nugget + STOARL):
Interviewers use behavioral questions to assess four critical areas that determine a PM's success:
By forcing you to rely on past, concrete examples, the interviewer gets a much clearer, evidence-based picture of how you will handle the role.
How you answer the questions also matters. Most interviewers will use something similar to the below to determine if you have a good answer or not. Although not every story will allow you to hit all 6 points below, you should try to have as many of your stories as possible hit all 6.
Since Amazon is the public and most focused on Leadership Principles (LP), it is often easiest to prep for an Amazon style interview and then modify your approach as needed for other companies. For example, Amazon has a “Customer Obsession” LP that pretty much every tech company also uses. LP’s around “Delivering Results”, “Thinking Big”, and “Ownership” are all also going to be principles that most companies will look for as well. Some of Amazon’s principles (ex. “Frugality”), may not be broadly applicable (especially to companies that offer free massages and free sushi for lunch every day), however, even the most extravagant seeming companies still don’t want you to waste resources.
Behavioral questions generally fall into four buckets: (1) how you come up with ideas, (2) how you work with others, (3) how you execute, and (4) whether you can deliver results.
Below is an example of how Amazon’s Leadership Principles fall into these four buckets and also some example questions for each one.