LinkedIn Data Scientist Interview Questions

Had a 30 mins conversation with a recruiter on the job description and she promised to get back to me in 3 weeks if I am eligible for the next phase

I got rejected in the written round. It was only SQL queries and i was not prepared for sql. i was hoping for python or ML questions. That is why i got rejected

First, you will get a phone call from the recruiter and the recruiter will ask you a basic SQL question. Once you passed the phone screen, you will be scheduled to have another interview, which is 1hr30mins and has 2 parts. Part 1 is a technical interview that assesses your coding skills in SQL and R/Python. Then, part 2 is to examines your product sense.

Recruiter told me I would be interviewing for a experimentation role, but I got questions that had nothing to do with experimentation. It felt like I had applied for a completely different position.

I got a phone interview for this position after recruiter reaching out. Phone interview was about technical questions, mainly on SQL and a mini case. The interviewer was nice and friendly.

After the first introduction phone call I was invited for a coding/ML interview. The interview had two parts. The first part was a coding question for about 25 minutes. The question was to implement an algorithm that samples from a discrete distribution given the probabilities of the events and I was allowed to use only basic random generators. The question was easy to solve by building intervals on the real line in proportion to the given probabilities and applying a binary search. The second part was questions about ML foundations. They asked me to explain logistic regression and its loss function and how to optimize it. Also some questions about metrics to evaluate ML algorithms and evaluation methods in general

I applied through LinkedIn and got shortlisted for the online test on hackerrank. The test contains 4 sql questions and 4 MCQ questions. The table name and informations provided in these questions was designed so badly that it was frustrating. After struggling with these SQL questions i realised that the table names and schema provided was wrong. I am not sure how they can have some one in company who is responsible for designing the questions with so much errors.. Even after i informed the HR didn't get any response.. probably too ashamed to accept their mistakes.

The recruiter contacted me himself via linkedin and showed interest. Then we had a call and he asked in which of their teams I am interested and when I selected the team, he aid we don't have hiring for this team right now and I'll update you soon when they have hiring. I contacted him several times after that and he never responded to my emails.

I applied for the role at LinkedIn through LinkedIn only. After few days, I was reached out by the HR for the next steps. Firstly a technical online test was to be cleared. 1 Python question(it was very simple; if you work on Python) and 3 SQL queries were asked. On clearing this, first telephonic interview was setup in which I was asked a problem solving case study and 1 SQL query. After successfully clearing this round, onsite interviews were scheduled. Onsite is supposed to happen at LinkedIn office but since LinkedIn was working from home, so all of them were scheduled virtually on a single day. The onsite rounds started with data manipulation round (basically multiple SQL queries were asked from me which covered concepts of joins, CTE, aggregation etc.). Apart from data manipulation, there was a problem solving case study round, applied statistics round, data storytelling round and the hiring manager round. Each round went for 45mins to 1 hr. After all rounds, after 2 weeks I was communicated with the results. Just after the Interviews, I felt positive for the result since I was able to answer all the questions but, unfortunately the HR told me that due to lack of experience I was rejected. The interview experience was good with the kind & quality of questions which mainly focussed on SQL, stats and indepth case study based problem solving questions but overall i felt that if only I was to be rejected based on lack of experience, I should have been communicated at the start and should not have been shortlisted at the starting only. Felt this gap there within their interview process.

I had applied on linkedin. Recruiter reached out with the hackerrank test, then after it, resume screening with HR who explained the next steps, after that had initial telephonic interview.