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Platform Engineer Interview Questions
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Describe a project that you have done. Discuss the overall flow of how it works. Problem: Given a time series data which is a clickstream of user activity is stored in hive, ask is to enrich the data with session id using spark. Session Definition: Session expires after inactivity of 1 hour Data: click_time,user_id 2018-01-01 11:00:00,u1, u1s1 2018-01-01 12:10:00,u1, u1s2 2018-01-01 13:00:00,u1, u1s2 2018-01-01 13:50:00,u1 2018-01-01 14:40:00,u1 2018-01-01 15:30:00,u1 2018-01-01 16:20:00,u1 2018-01-01 16:50:00,u1 2018-01-01 11:00:00,u2 2018-01-02 11:05:00,u2
Given an array of N length with N distinct positive integers, determine an integer that is missing from [1,N]. If there's no such element, return N+1. O(1) auxiliary space.
Tell me about yourself Why this position How confident are you with your Data Analytical skill
Screening - availability, reason for applying big O - Leetcode medium, maybe a bit easier than that. It's one of those exercises that has multiple phases where each builds on top of your solution to the previous one. In my case, it had 4 and it was required that I complete 3. I was informed of this beforehand although in an unnecessarily misleading way imho, as I was told 70% was the minimum "grade" to pass, while each step awards you with a score of up to 25%. Manager interview - Conflict resolution, addressing bringing up process improvements as well as my way of improving others System design - Design a system where you can show a list of transactions made by a user. The problem statement was a little misleading imho because it turned out that they wanted me to design the API endpoints and not do a client HLD, which is opposite to every other mobile design interview I have ever done, and that includes Meta, as well as what's stated on resources provided by the company themselves ahead of the interview, but maybe you can give them the benefit of the doubt and pin this on me not having clarified a seemingly-already-clear point instead.
The coding challenge was in Terraform, and it felt like pair programming. Interviews were friendly
The coding challenge was in Terraform, and it felt like pair programming. Interviews were friendly
Expected culturally fit candidate and technically effluent as well
Questions were largely based around what was on my CV and my experience using the tools that they use
Build an API in Python and put it behind a reverse proxy using nginx.
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