31. Tell me about your previous job.
Summarize your previous role, the work you owned, and the impact you had.
Use STAR to structure your answer: briefly explain the Situation and Task, make Action the most detailed part, and finish with the Result. For example, describe your last role, the Java services you were responsible for, how you worked with the team, the decisions you made to improve reliability and maintainability, and the impact your work had.
In my last role, I worked as a Java Developer on backend services that supported important business workflows. The system had several services that exchanged data through APIs, and my team was responsible for keeping those services reliable while continuing to add new features.
My responsibility was to develop and maintain several Java services, investigate production issues, review code, and work with other engineers to deliver changes safely. I also needed to make sure the code was easy to understand and maintain because multiple developers worked on the same services.
I spent most of my time building and improving backend functionality in Java. Before making a change, I first tried to understand the full request and how it affected existing services. I then broke the work into smaller changes so each part could be tested clearly. I added unit and integration tests for important behavior, reviewed database queries when a change affected data access, and checked logs carefully when investigating production problems. I also participated in code reviews and explained the reason behind my suggestions instead of only pointing out problems. When a change involved another service or team, I discussed the API behavior and possible failure cases early so we could avoid surprises during integration. I also cleaned up confusing code when it was directly related to the work I was doing, while avoiding unnecessary changes that could increase risk.
This approach helped me deliver reliable changes while making the services easier for the team to maintain. It also improved how I communicated technical decisions because I learned to explain both what I was changing and why it mattered. The main lesson I took from that role was that strong backend development is not only about writing correct Java code. It also requires understanding the surrounding system, testing carefully, communicating early, and taking ownership of the result.
Interviewers ask this question to understand the candidate's recent responsibilities, level of ownership, technical exposure, teamwork, and professional growth. A strong answer shows that the candidate can clearly explain what they worked on, what they personally contributed, and how their work supported the broader team and system.