I applied through a recruiter. I interviewed at HealthVerity in Jan 2021
Interview
Quick phone interview with recruiter, followed by 3 hour long coding assessment. They also ask you to submit some publicly available sample code under 200 lines if you've got it. They declined to interview me after the assessment.
Be careful! One of the questions in the coding assessment had an error and was very poorly conceived. I don't know if this was intentional, but I suspect that they threw me one of their production work items in an attempt to get me to do work for them under the guise of an interview.
Interview questions [1]
Question 1
1. An input list is used as a seed for generating random numbers. Starting from index 0, the value at index 0 gives you the index of the next value, and so on until you generate a million numbers. Determine the number of unique values generated.
2. You're given a CSV files with two columns of integers as strings. The first column has the numbers 1:1000000 with one value missing. The second column is the same, but with two values missing. First, find the number missing in both. Then, find the number missing in the first column .
3. Given two sample inputs, use SQL to generate a target output. This question didn't even make sense because there was a column in the output that doesn't map to any of the inputs. Not sure if this is a trick or if the person who wrote the question doesn't know how relational databases work.
6 rounds of interviews. Take home python assignment. All other rounds were technical questions having to do with data engineering tools/technologies and broad concepts etc. Definitely one of the harder interviews I've been apart of.
Interview questions [1]
Question 1
Explain how apache spark works and why it is so efficient.
5 rounds of interview with a take-home test. I had the pleasure of interviewing for a data engineer role at HealthVerity and was thoroughly impressed by the company's commitment to innovation and data-driven solutions. The team was highly knowledgeable and supportive throughout the process, making it a seamless and enjoyable experience.
Interview questions [1]
Question 1
why healthverity, and talking about your experience
I applied online. The process took 2 weeks. I interviewed at HealthVerity
Interview
Started with a recruiter call that went well. Then, I had a take-home assessment that took me a few hours. I was told you would typically hear back after submission pretty quickly. After that, I heard nothing back from the company. I followed up, and still no response. If you expect candidates to spend a lot of their personal time on something, you should at least provide some form of feedback. It sounds like I dodged a bullet based on some of the other reviews.