Candidates applying for Data Scientist roles take an average of 21 days to get hired, when considering 10 user submitted interviews for this role. To compare, the hiring process at Millennium overall takes an average of 25 days.
Common stages of the interview process at Millennium as a Data Scientist according to 10 Glassdoor interviews include:
Skills test: 25%
Phone interview: 25%
Personality test: 13%
One on one interview: 13%
Presentation: 13%
Group panel interview: 13%
Here are the most commonly searched roles for interview reports -
I applied through a recruiter. I interviewed at Millennium (Hong Kong) in Jun 2021
Interview
80 min hackerrank test + data cleaning exercise.
They let everyone takes these without even looking at your profile. Then, if they think that your background is not a good fit, they send you a generic rejection email.
Please don't waste your time.
“This data exercise is designed to identify candidates with aptitude for Millennium role. We are unable to share detailed results of evaluation due to confidentiality constraints. We believe most of our candidates have a chance to qualify in future after they have gained some more experience in quantitative data and research space. We encourage them to try again in 12 months.”
Interview questions [1]
Question 1
Data Scientists and Analysts are often tasked to clean and analyze datasets. We are working with an external research firm who specializes in the application of artificial intelligence to forecasting prices of financial instruments. This firm has developed a proprietary system, called “4sight”, to forecast prices of certain instruments.
To demonstrate the effectiveness of their forecasting system, the vendor has sent us attached sample dataset. The dataset includes signal values generated by the 4sight system as well as historical prices for a well-known broad market ETF.
A Portfolio Manager has asked you to:
1. Review the quality of the data, list any potential errors, and propose corrected values. Please list each quality check error and correction applied.
2. Please analyze the signal’s effectiveness or lack thereof in forecasting ETF price, using whatever metrics you think are most relevant.
3. (Extra credit) Write a 1-2 paragraph summary for the Portfolio Manager addressing your observations about the efficacy and believability of the product, and recommendation for next steps.
Please budget at least one hour for completing this exercise. Please include all the intermediate steps when sending your solution to this exercise back to us.
Hackerrank on a mix of common data science topics. Mainly coding in the first round, no theory questions. Definitely need to work fast. I would say a mix of python and sql.
I applied through a staffing agency. The process took 1+ week. I interviewed at Millennium (Hong Kong) in Oct 2023
Interview
Talked with the PM directly in the first round. Basically all about my past experiences. He’s been friendly and grasped my situations really quickly. Seems a good conversation but no further rounds.
Interview questions [1]
Question 1
Tell me about your experiences. Why doing in this way?
I applied online. The process took 8 weeks. I interviewed at Millennium in Jul 2023
Interview
First round is a online test with programming and database questions. Second round is a homework data project. Passed and move to 3rd round and 4th rounding, all are online interviews from analysts to hiring manager. Also a caliper test before 4th round. Both interviewers and HRs are friendly. The processing is transparency but long time. Be patient.