Millennium Interview Questions
Published March 27, 2026
Estimated reading time: 5 minutes
Millennium Interview Guides
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Data Structures & Algorithms
(76)
SQL
(40)
Machine Learning
(29)
Probability
(21)
Statistics
(14)
Millennium Interview Questions
Practice for the Millennium interview with these recently asked interview questions.
| Question | Topic | Difficulty | ||||||||||||||||||||||
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SQL | Easy | |||||||||||||||||||||||
Write a SQL query to select the 2nd highest salary in the engineering department. Note: If more than one person shares the highest salary, the query should select the next highest salary. Example: Input:
Output:
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SQL | Easy | |||||||||||||||||||||||
Data Structures & Algorithms | Easy | |||||||||||||||||||||||
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SQL | Easy | |
Machine Learning | Medium | |
Statistics | Medium | |
SQL | Hard | |
Machine Learning | Medium | |
Python | Easy | |
Deep Learning | Hard | |
SQL | Medium | |
Statistics | Easy | |
Machine Learning | Hard |
Challenge
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Millennium Salaries by Position
Most data science positions fall under different position titles depending on the actual role.
From the graph we can see that on average the Software Engineer role pays the most with a $183,529 base salary while the ML Engineer role on average pays the least with a $168,763 base salary.
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