LinkedIn Senior Data Scientist interview questions

The internal recruiter who identified and contacted me was excellent in all respects: very professional, helpful, diligent, and genuinely trying to identify the best talent for the company. I was given enough information about what to expect from the interview process, how to prepare for it, about the team and its goals as well as the company's recent highlights. And then came the phone screen... The interviewer was very satisfied with my coding skills and told me during the call itself that I finished it faster than other candidates. He then asked me a few questions related to data science and algorithms. For just one of them, I told him that I looked into the mathematics of it about three years back, and so do not have the mathematical details of it on the top of my head, and then gave him an overview of the concepts involved. That was it. I was rejected, for saying that one partially negative thing about myself. In the recent times, many companies are trying hard to improve their interview processes, as was evident in how the internal recruiter handled it. The interviewers are in need of more training still.

[Phone screens] Linkedin recruiting team reached out to me on Linkedin. They talked to me about what candidate they were looking for and explained to me in details the recruiting process. Then their recruiting coordinator quickly set up two phone screens. I enjoyed those two chats with data science lead and manager, who are very professional. They asked excellent technique and behavior questions that are closely relevant to the real data scientist job on a day to day base. Meanwhile, they are very friendly and they patiently answered all my questions regarding the potential role, work style, and team culture. [Onsite] Only a few days after the phone screens I was told I would be invited to an onsite. Once again they quickly set up the onsite and the traveling. I think the onsite was very well organized and it gave me a perfect opportunity to learn what my job would look like. It is really easy to tell that everyone I talked to are very smart and really know the stuff they are talking/asking. And I can tell they did their research on my background and asked great questions to best know me and assess my specialties. That really makes a difference and makes me feel that I am respected as a candidate. During the day, the hiring manager had been checking with me during the breaks to make sure that I had time to grab water and go to the bathroom, and that helped me a lot shaking off the stress and focusing on the interview itself. (BTW, the lunch was very enjoyable, and the cafe is the best.) By the end of the day, when I met my recruiters, they walked me through how the business is running and what is the battle plan for the next year. What they did really impressed me. I would highly recommend adding the 'mini business review' to every onsite because it provides huge amount of valuable info to the candidate. [Offer] The hiring manager is extremely helpful and he spent time talking to me on every questions/concerns I have. And I undoubtedly say that he is the best hiring manager I ever met. The recruiting team always respond promptly. The recruiting team leader did an exceptional job pushing forward the offer processing and understanding my concerns. Everyone is so helpful that it feels like talking to friends. [Overall] I really enjoyed the entire process from the very beginning. The data science and recruiting team delivered the best job-seeking experience to me.