The HackerRank interview consists of 90 minutes and 3 questions. One question involves utilizing Common Table Expressions (CTE) and table joins, while the second Python question centers on groupby, sorting, and time series manipulation using Python. Candidates are tested on their ability to navigate SQL queries efficiently, employing CTEs and table joins effectively. In Python, they demonstrate proficiency in data manipulation techniques such as grouping, sorting, and handling time series data. The interview format aims to assess candidates' problem-solving skills, SQL proficiency, and Python programming abilities within the allotted time frame.
Hackerrank coding OA (pandas, sql), coding exercise interview(pandas), and a first-round interview (consisting of a data modeling case interview and a debugging coding session(python and linux). did not pass after that
I was supposed to five interviews. But I got only 2.
Like it was a mess, I understand they are hedge fund and stuff like that, but it was too difficult for a new grad role. They expect you to actually know so many stuff.
I had a data quality assessment, which means they want you to read and find out the error and correct them.. It was in python and hard. Like if you have experience, its manageable.
Then I had a linux round called debugging. It was very, very hard. You actually needed domain expertise on finance to do this round.
I applied online. The process took 2 months. I interviewed at Voleon in Feb 2026
Interview
Starts with an OA(python data manipulation, SQL). After that we have another data quality round. then a live remediation round and then a data modelling round.
Final round with hiring manager. Lots of referrals were asked post interview process and they went pretty deep here.
Voleon interviews FAQs
Data Analyst applicants have rated the interview process at Voleon with 3.4 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 43% positive. To compare, the company-average is 32.8% positive. This is according to Glassdoor user ratings.
Candidates applying for Data Analyst roles take an average of 60 days to get hired, when considering 7 user submitted interviews for this role. To compare, the hiring process at Voleon overall takes an average of 33 days.
Common stages of the interview process at Voleon as a Data Analyst according to 7 Glassdoor interviews include:
One on one interview: 36%
Skills test: 27%
Background check: 18%
IQ intelligence test: 9%
Phone interview: 9%
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