Square Interview Questions
Published March 27, 2026
Estimated reading time: 5 minutes
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Data Structures & Algorithms
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Machine Learning
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SQL
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A/B Testing
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Product Sense & Metrics
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Square Interview Questions
Practice for the Square interview with these recently asked interview questions.
| Question | Topic | Difficulty | ||||||||||||||||||||||||||
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SQL | Medium | |||||||||||||||||||||||||||
Write a SQL query to create a histogram of the number of comments per user in the month of January 2020. Note: Assume bin buckets class intervals of one. Note: Comments that were created outside of January 2020 should be counted in a “0” bucket Example: Input:
Output:
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SQL | Hard | |||||||||||||||||||||||||||
Product Sense & Metrics | Hard | |||||||||||||||||||||||||||
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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 |
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Square 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 Product Manager role pays the most with a $171,851 base salary while the Data Analyst role on average pays the least with a $112,010 base salary.
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