Phone interview: Technical terms from the resume such as what is PCA, A/B testing, difference between A/B and multivariate Onsite: go through resume some basic sql join question some basic R syntax asked if each of the models mentioned in resume were supervised/unsupervised how would you go about to figure out potential customers, what all data points? why discover (all asked) decision trees, regression ques a ton of behavioral questions
Technical interview questions are based around your prior work as it relates to the job description.
Tell us about a time when you were working in a group and one team member was struggling.
How do you attack a data problem?
Nowadays behavioral questions for this role are almost always 1) accomplishment 2) failure 3) help others
Case 1: Bank loan Case 2: local liquor store with new competition
Gave me a business case and asked both business and math questions. You are allowed to ask follow up questions and make assumptions.
Biggest accomplishment. Time when you made a mistake. Time when you went out of your way to help someone.
Initial Codesignal assessment: 14 MCQs and 1 SQL query question. Mini-case interview: A rideshare company wants to expand into a new canadian city XYZ, how would you assess the feasibility? Then I was given some data to assess if the company is profitable? Do the numbers make sense? You realized that insurance is higher than anticipated, what is the contribution margin now? What is your final conclusion? Technical Fit: They give you a schema (1 - 3 tables) and ask you to write queries for: 1) • Tell us• how much • Cash• payments• (total•$) •we • receive each day? 2) • Identify all customers who have more payments • ($) • in cash • than they have electronically? 3) • Identify all customers who have made • over $10,000• in cash • payments during any two day period.
Tell me about a time when you helped a teammate. Tell me about a time you made a mistake. What is your biggest achievement or accomplishment
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