I applied through a recruiter. I interviewed at Mu Sigma
Interview
2 rounds, asked about complex SQL, RDDs, dataframes, project related interview questions, had a paper test with objectives, was being interviewed data engineer but expectations were for architect level knowledge.
Also asked questions on Kafka, Spark ecosystem, etc.
Interview questions [1]
Question 1
Complex SQL, RDDs, scenario based dataframe questions
I applied through a recruiter. I interviewed at Mu Sigma (Bengaluru)
Interview
1st round is MCQ- 30 question was there and almost 30-40 people was there out of them they selected for 15 people for the 2nd face to face interview. 2 Technical round was there.
Interview questions [1]
Question 1
Core Java- OOPS concept in details with example, collection vs collections, array vs array list internal working , HashSet vs HashMap difference and internal working, linked list vs array list which one is preferred ? what if array list size is full how new element is added to list.
Spring- what is auto wired? dependency injection? types of DI, difference between construction injection and setter injection. singleton and prototype difference. Rest api call,
spring mvc architecture, @Qualifer uses. @Controller, etc different types of annotation used in spring MVC architecture. Last question was how to load huge data from Rest api to the DB if its loaded in DB at a time then the database will crash immediately in such case how you will handle the situation. They kept you waiting for 5 hours for an interview even if there is very few people. They only hire if you go through referral drive.
