Codility: find maximum value on a column (something that in pandas would be super easy). Though, I wasn't allowed to use pandas; some coding test that required a priority queue to be solved; question was about a cleaning robot going around a 2D matrix always turning right, and try to tell what will be the covered cells by the robot. Tech screening: linear model, with categorical values, and missing values.
Como voce lida com deploy de um modelo em produção?
They asked me to walk through one of my recent end-to-end data science projects and explain how I approached the problem, what techniques I used and the impact it created.
Rescehdules only, not interview, however in between these Expertite and Careernet were telling it is good company.
In a file containing an integer on each line, explain how to determine the median and estimate the time complexity.
Statistics, Machine Learning, Data Engineering
Am i okay with creating apis
Given a table that each day shows who was active in the system and a table that tracks ongoing user status, write a procedure that will take each day's active table and pass it into the ongoing daily tracking table. Possible states are: * user stayed (yesterday yes, today yes) * user churned (yesterday yes, today no) * user revived (yesterday no, today yes) * user new (yesterday null, today yes) Note: you'll want to spot and account for the undefined state.
Given a table containing date, post_id, relationship (e.g. Friend, Group, Page), interaction (like, share etc.) and a table containing poster id and post id, calculate: how many likes were made on friend posts yesterday
Basic SQL (don't remember specif question)
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