JP Morgan chase || Software engineer 2 || Rejected

I recently appeared for a Software Engineer 2 role at JPMorgan Chase. There were a total of two interview rounds for me.

First Round

This was a one-hour round with a Project Manager. She was very friendly, and the round went well. She asked basic Java, Spring Boot, and project-related questions.

Questions I remember:

• What is finally block and when it is called?
• Exception propagation in Java?
• How HashMap works?
• Difference between flatMap and map?
• What is a functional interface?
• Difference between @RestController and @Controller?
• Advantages of Spring over Spring MVC?

Second Round

This was another one-hour round. The interviewer had 20 years of experience. It started with an introduction and a discussion about my projects. Since JPMC is in the finance domain and I also work in finance, he asked very key questions from my project. I even answered a few project questions with some doubt.

He then moved on to Java, Spring Boot, and database-related questions, ranging from basic to advanced topics. I was not satisfied with my performance, especially regarding the design pattern code he asked for.

Questions I remember:

• Can a Java class be static?
• Can a Java class be final?
• Can a Java class be private?
• Can we override static, private, or final methods?
• Transaction propagation in Spring Boot?
• Given Employee and department classes, without modifying these classes, how can we establish a relationship between these two so that a department can hold all of its employees and we can return all of its employees given a department object?
• He asked an SQL query to return a list of all departments with zero employees.

The second round did not go well for me. I answered a few project questions with doubt and could not answer some of the advanced Java and Spring Boot questions.

I did not hear anything back, and I didn't even follow up because I felt I hadn't performed to my average. However, overall, these rounds were good for learning.