I applied for the position of SDE at IDfy.
Round 1(Online Test): The first round was the online test, consisting of a few MCQ’s and two coding questions. One of the coding questions being,
- Find the transpose of a matrix.
Only 20 people were shortlisted from my college after the first round.
The first round was followed by two technical interviews.
Technical Interview 1: I was asked about basic concepts from OOPS, Database, SQL, Operating systems, for eg- Difference between encapsulation and abstraction (refer to geeks for geeks). Difference between get and post among other questions. Refer to GeeksforGeeks for the above-mentioned topics. The theoretical questions were followed by Coding questions, where I was given problem statements, and I was asked to explain the logic and write the code for the same on any editor that I had.
- Find the transpose of the array, given that the dimension of the array is above 100. The regular transpose method can’t be applied as it will take up a lot of time.
- Implement stack from 2 queues and vice-versa. You can refer to YouTube or GfG for the above-mentioned problem statement.
- I was also asked Time Complexity of a few algorithms.
Technical Interview 2: This interview tested your technical knowledge in more depth, as compared to the previous one.
- It started off, with the interviewer asking me about my projects.
- I told her about one of the Android projects that I had done during my internship.
- The interviewer then gave me a sample problem statement to create an app, I was supposed to tell about how and which functionalities would be implemented and the tech-stack that I’d use. this went on for quite some time, the interviewer kept on adding a few functionalities.
- Post that I was given a coding question. I don’t exactly remember the question, but I gave the correct solution. But even though the solution was correct, its time complexity was high, and I forgot to give the more efficient solution.
Because I answered almost every question(correctly), I was selected by the company.