Hashedin by Deloitte Interview Experience for SDET 2022

I am a student from Tier 3 college and recently Hashedin did a pool drive in which my college was also included. It consisted of 4 rounds of interviews.

Round 1: Online test for shortlisting: The duration of the test was of 120 minutes in which we had to solve 20 MCQs and 3 coding questions. The MCQs were related to OOPs and were written in pseudo-code format so a person comfortable with any programming language can attempt it. The coding questions were in the range of easy-medium range. It was later clear to us that if we solved all 3 questions you will get a call for the SDE role if you solved 2 and partially accepted 3 you got a call for the SDET role. As you can see I was in the latter case. The test was conducted on their platform.

Round 2: Technical round 1: This interview was around 1 hour long and was conducted virtually. The questions asked in the Interview mostly tested the problem-solving skills and core Computer Science. The interview started with an introduction and the interviewer asked a few questions from my resume to make me comfortable. Then they jumped to DBMS and mostly asked questions related to distributed databases, ER diagrams, and a few SQL queries. After that, I was asked 2 questions.

1. Find the intersection of 2 linked lists- The logic behind is quite simple so I was able to code it in 10 minutes.
2. Find in-order traversal of a tree -In this, I wrote the recursive approach but was later asked to write the iterative approach as well. The iterative approach took me some time but I was able to code it.

Round 3: Technical round 2:Since my resume was mostly DSA oriented I wasn’t asked many development-related questions. In this round, I was asked a lot about OS which might have taken 10-15 mins. After that, we jumped to DSA again. 

Question 1 Find the missing and repeating number: I made 3 logics for this question be it hashing, nested loops, and mathematical. After each logic, a small discussion about time and space complexity was done and each time they asked me to optimize it further. After this question, we had a general discussion on time and space complexity.

Question 2 Print all distinct characters of a string in order: It was again an easy code that was done quickly. 

Round 4: HR round: This interview is called a Fitment Round. I was asked my strengths and weaknesses, If I am open to relocating, why do I want to join hashed, where do you see yourself in the coming 5 years and other typical hr questions 

Result: Around a week later the results were declared and I was selected (2-month internship  + FTE ).

NOTE: Don`t be intimidated in the interviews as the interviewers are very supportive and it`s more of an open discussion than one side conversation or rapid fire.