Stonewain Systems Inc. Interview Experience for SDE (On-Campus)

Round-1:Online Test: (Test Duration: 3 hours on Mettl) The first round comprised about 3 coding questions and 50 MCQ questions including aptitude, logical, and output questions:

• Quantitative aptitude and Logical part were much more predominant.
• They were not very difficult but were very tricky. You would be able to solve them if you have practiced them well enough beforehand.
• The test is split into 3-4 sections and each section is timed.
• The coding questions were of medium level and you will be able to solve them within the given time if you have enough practice.

Suggestion: I would suggest doing practice from sites like GeeksforGeeks, CodingNinjas, etc. as it will give the confidence to solve problems.
Tips:

• Solve the questions with a calm mind.
• Don’t stress yourself during the test because you have to do 50 questions in 60 minutes.
• Don’t spend too much time on any question if you are not able to do it on the first attempt.
• Try attempting most of the questions correctly instead of trying to do each and every question.

Round 2 (Technical Interview 1): After the online test, the shortlist of students is announced and selected for the in-person interview process. The round started off with a brief introduction and discussion of a major project. Be sure to know details about the project.

After the project discussion, I was asked 2 DSA questions:

• Implement stack using two queues.
• Find the middle of the linked list (Most of the questions asked in this round are easy-medium level)
• I was asked to code as well as dry-run the code on a given example.
• After the DSA discussion, I was asked to write 1-2 easy SQL queries using Joins and nested queries and some general discussion of SQL.
• The round ended with a discussion of the OOPs concept in detail. I was asked to give some real-life examples.
• Be sure to know each and every keyword used in OOPs.

Round 3 (Technical Interview 2): If you get shortlisted from interview 1, you will get a call for the 2nd round of interviews. This round is with the engineering manager of the company.

• The round started with a brief introduction.
• There will be an in-depth discussion of the project you mentioned like what kind of database is being used, whether is it optimized, what can we do to optimize it, etc. Be prepared for all sorts of situational questions like what would happen if the following change is made to the database.
• You will be asked to write a few SQL queries and there will be some general discussion on the real-life usage of various kinds of data structures.
• I was also asked to take up one single example and explain all OOPs pillars using that one example.

Round 4 (HR Round): If you manage to clear the 2nd interview round, you will be called for the final interview round i.e. the HR round. The round starts with a brief introduction followed by general questions like:

• Where do you see yourself in 5 years?
• Your interests, strengths, weakness
• Any plans for higher education?

The round ended with HR asking for my preferred job location and if I had any questions for them. The overall interview process is quite good and easy and you will be able to clear it if the basics are clear.

The final selected students were revealed the next day and I was one of them among the 15 students selected from our campus.