Voleon Researcher Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 5 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at Voleon.
Voleon
Researcher
Mid Difficult Neutral experience No offer 1 round
Interview process
Recruiter call Technical screen
Interview formats
Technical Coding
It was a zoom interview. They asked some ML questions about tree algorithm complexity, regularization, and the bias-variance tradeoff. One question asked to derive the conditional gaussian formula, either through an optimization problem or some other method, which could be tricky if you haven't seen it before.
Confirmed questions1 question
- Can you infer normal random variables based on their sums?
Voleon
AI Researcher
Mid Difficult Positive experience No offer 3 rounds
Interview process
Recruiter call Technical screen Onsite
Interview formats
Technical Coding
The hiring process for this role was challenging, featuring complex problems in math, stats, coding, and machine learning. Throughout the process, communication was excellent and things ran smoothly. A deep understanding across several fields is required.
Confirmed questions1 question
- Can you describe how statistical methods are used to solve real-world issues, specifically in approximating solutions for NP-hard problems?
Voleon
Researcher
Mid Average Negative experience No offer 7 rounds
Interview process
Technical screen Background check Offer
Interview formats
Technical Coding Behavioral
This interview process was lengthy. It involved 7 technical rounds and 4 reference checks. While most interviewers were pleasant, one junior interviewer with a poor attitude contacted my references. This reference mentioned that the interviewer was disrespectful and seemed uninterested, asking about prompt after-hours communication. Following this, they claimed the reference didn't provide enough information and requested more references to be contacted. While interviewing is a significant commitment, sometimes you may encounter biased or unhappy individuals. I wouldn't recommend this interview process due to the high opportunity cost and the extensive time required for reference checks, which also impacts others.
Confirmed questions2 questions
- Questions mostly focused on statistics and machine learning.
- For coding, you should study basic data structures and LeetCode-style problems.
Voleon Researcher Interview Questions
Quoted word for word from Voleon interview reports.
“Determine the likelihood that the sum of two dice will be 6.”
Read reports →“Can you infer normal random variables based on their sums?”
Read reports →“Describe the impact of confounders on a linear regression model.”
Read reports →“Can you explain a complex concept regarding hyperplane projections?”
Read reports →“For coding, you should study basic data structures and LeetCode-style problems.”
Read report →“Can you describe how statistical methods are used to solve real-world issues, specifically in approximating solutions for NP-hard problems?”
Read report →“Questions mostly focused on statistics and machine learning.”
Read report →Formats, difficulty and experience
Across all 5 Voleon interview reports.