- What do you know about MOIA? - If you were to pick among linear, quadratic or other non-linear objective functions, how would you proceed? - Do you know experience with numpy/scipy scientific computing stack?
Operations Research Scientist Interview Questions
1,036 operations research scientist interview questions shared by candidates
My background and the projects that I worked. Test was about an integer programming problem.
Why would you want to apply for Doordash
What machine learning methods you've used? If I gave you a dataset, how do you deal with qualitative features on python?
ask questions about your own research
formulate the assignment problem (with all the assumptions)
The cost of one unit of a stock on each day is given in an array of size n (# of days). The decision problem is to find days on which stocks should be bought and sold to maximize the profit by buying and selling of stocks. For example, if the given array is {100, 180, 260, 310, 40, 535, 695}, the maximum profit can be earned by buying on day 1, selling on day 4; buying on day 5 and selling on day 7. Provide a pseudocode of your algorithm for above problem. Also provide the running time of your algorithm.
A client is choosing between you and your competitor, how would price them?
Technical interview: Go through past experience and drill down one project. How to model a continuous variable x which cannot take a value between two numbers (10, 20 for examples)
Coding section of the online test is tough from an OR scientist stand-point. More focus towards software development elements. OR section of the online test is straightforward.
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