I applied through a recruiter. The process took 4 weeks. I interviewed at Meta (Boston, MA) in Mar 2018
Interview
I was contacted by HR on LinkedIn. After brief phone screen with HR ( was asked one Stats and a code question) I got scheduled for Technical Phone Screen. Though I was provided preparation material that said programming questions will be based on Pandas and Numpy, I was surprised when I was asked to write a program for tax calculations. I was able to write the logic right after struggling in the beginning but I guess it was too late. Probably would have done better if instructions would have not been misleading about what will be asked in the interview.
Interview questions [1]
Question 1
Write a program in Python to calculate tax if Salary and Tax Brackets are given as list in the form [ [10000, .3],[20000, .2], [30000, .1], [None, .1]]. You don’t know in the beginning how many tax brackets are there. You have to test for all of them.
I applied through a recruiter. I interviewed at Meta
Interview
1. Behavioral questions from recruiter around experience and check interests (30min); they will share interview preparation guide after this step if move forward
2. First round interview with ML/stats questions + coding/algorithm + data manipulation (1hr-if pass, there will be final round)
Interview questions [1]
Question 1
Data manipulation with language of choice (SQL/python): easy joining/group by questions
Coding/algorithm: easy level Leet code, be ready to discuss time/space complexity
Stats/ML: regression deeper dive
Took around 1 hour and has three parts, each of 20 minutes: SQL, coding, statsitics. At the end had a few minutes left and the candidate can ask the interviewer questions.
Interview questions [1]
Question 1
Asked about linear regression and ANOVA for statistics.
I applied online. The process took 2 weeks. I interviewed at Meta
Interview
A Shared Coderpad of SQL, Python Coding, Stats and ML. The questions were actually pretty basic but the interviewer frequently asked nitpicky questions that a DS practitioner would never really think about (like what are the formulas for pooled variance). See questions below as examples.
(SQL) Given a table, provide all the pairwise combinations of IDs, without any duplicates. So with record1: ID1 ID2; record2: ID2 ID1; record1 or record2 needs to be removed.
