Numerator Data Scientist Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 8 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at Numerator.
Numerator
Data Analyst/Data Scientist
Mid Average Positive experience No offer 4 rounds
Interview process
Recruiter call Technical screen Technical screen Onsite
Interview formats
Technical Coding Behavioral
It was a 4 stage interview process. First was a telephonic call. Second was a written test on call with 2 SQL questions. Third was a technical round where they asked questions about SQL joins, window functions, data viz, and projects, along with basic Python pandas. Lastly, there was a managerial round focused on my projects.
Confirmed questions2 questions
- Questions about SQL joins and rank were asked.
- There were also data visualization questions.
Numerator
Data Science Intern
Intern Difficult Positive experience No offer 2 rounds
Interview process
Recruiter call Technical screen Phone screen
Interview formats
Technical Coding Behavioral
The interview process was overall a positive experience. It included two interviewers. One interviewer asked technical questions, covering SQL, cloud computing, coding, Pandas, and Python, while the other focused on behavioral questions to gauge interpersonal skills and experiences.
Confirmed questions8 questions
- Can you write a SQL query to find the second highest salary from an employee table?
- What steps would you take to optimize a query that is running slowly?
- Could you explain the distinctions between INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN?
Numerator
Data Scientist
Senior Average Negative experience No offer 3 rounds
Interview process
Technical screen Take home Presentation
Interview formats
Technical Presentation
Started with an online IQ test, then a phone screening, followed by a take-home assignment and a presentation. The take-home was a huge amount of work. It was pretty discouraging to submit it only for them to not even review it before the presentation. Felt like they didn't respect candidates.
Confirmed questions1 question
- Can you explain your approach to building a model?
Numerator Data Scientist Interview Questions
Quoted word for word from Numerator interview reports.
“In Pandas, how would you address missing data within a DataFrame?”
Read reports →“Can you write a SQL query to find the second highest salary from an employee table?”
Read reports →“How would you go about implementing a stack using queues in Python?”
Read reports →“Could you explain the distinctions between INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN?”
Read reports →“Can you articulate the differences between AWS EC2 and AWS Lambda?”
Read report →“What steps would you take to optimize a query that is running slowly?”
Read report →“Can you solve a problem related to algorithmic complexity, such as finding the nth Fibonacci number?”
Read report →“How did you incorporate Python into your sentiment analysis project?”
Read report →“Describe your approach to performing data aggregation and summarization using Pandas.”
Read report →Formats, difficulty and experience
Across all 8 Numerator interview reports.