DevRev Interview Experience for Developer Trainee

The process for On-campus placement was the same as interested students were required to fill out the form then around 600 students were shortlisted (from 3 colleges). All the shortlisted students were given different projects based on their interested fields.
All available fields were:

1. Frontend Developer
2. Backend Developer
3. Full Stack Developer

I opted for Full Stack Developer and was supposed to complete a project – Flight Ticket Booking System in 36 hours. I completed it successfully and the company took around 10-15 days for reviewing all the submitted projects then they schedule interviews of 5-7 students each day and it goes for 3 days which means approx. 20 students were shortlisted. Students received the mail around 4-5 hours before their interview.
I received mail at 10:30 AM and my interview was at 04:00 PM. In that period of time, I can only brush up my concepts that I have learned so far which include:

1. Core Subjects – OS, CN, DBMS, OOPS
2. Technical Concepts – HTML, CSS, JS, Node.JS, Express.JS, and MongoDB
3. Go Through my project once
4. Some DSA concepts.

That’s all that I have done before the interview.

Once the interview started, everything goes with the flow:

1. I was asked to introduce myself
2. The interviewer asked to show the hosted project along with the source code
3. The interviewer asked some questions about my project and asked to explain some specific parts of the source code.
4. Then the interviewer asked about the language in which I like to code (In my case it is Java)
5. The interviewer asked me 2-3 questions about java and OOPS:
   (a) Is Java pure Object Oriented?
   (b) Difference between Abstract class and Interfaces
   (c) Difference between Final, Finally, and Finalize
6. In the end, the interviewer gave me a DSA question on Leetcode only which was of Medium Level but gave me only 10 minutes to solve because of less time, so I explained my intuition and the interviewer was satisfied with the answer and didn’t bother to see the whole code.