Jumbotail Company Interview Experience

Jumbotail is a product-based startup in Bangalore. My interview was divided into four rounds as follows:

Round 1 (Technical Round):

In total four types of questions have been asked.

1. Gave me a small code in C language and asked me to identify the error. I identified the error.
2. A coding question: You are given two numbers x and y such that one is lesser than the other. You need to add 1 to any number x or y any number of times so that both should become equal. Print YES if this is possible or else print NO. (NOTE: The answer is always YES. You don’t need to write the code, you need to understand the logic here. They will check your presence of mind)
3. Another coding question is based on the stack data structure. I had written the code for the same by sharing my screen. Later asked me to explain the logic. I explained the logic.
4. Finally gave me a technical term that I never heard before. Gave me 5 minutes to do research on the term by sharing the screen (Here you can search on Google, Youtube, etc). After 5 minutes, asked me to explain the technical term.

This way, the first round was completed. The interviewer was very friendly and encouraging. The only thing we need is patience and the presence of mind. These come through a lot of practice.

Round 2 (System Design):

In this round, I was asked to write a database system for a college. The college can have any number of affiliate colleges. But to my surprise, I completely overlooked the Normalization techniques that we learned in our college. They asked me to search Google by sharing screen. Due to pressure, I cannot understand things and did not perform well in the second round.

Round 3 (Logical Thinking Test):

This is quite an interesting round. They asked totally three types of questions:

1. Asked to give parameters for the smart dust bin. I asked for some time and wrote down some points like alarm after full, classifying waste etc.
2. Asked me a question on the sand-timer. The question is like you are given two sand timers with timers 8 minutes and 5 minutes. You need to inform after 10 mins using both timers only once. (ANS: Start both timers, when the 5-minute timer ends, flip the 8-minute timer to get 5 + 5 i.e 10 minutes)
3. Gave me a Java code and asked me about the output. I said it will generate an error. They asked me about the error. I explained the error.

This way the third round successfully completed.

Round 4 (HR Round):

A series of questions like Tell me about yourself, background, college project, and some job-specific questions like whether I know anything about Jumbotail, my salary expectations, etc.

Finally, I got selected as Product Support Engineer at Jumbotail.