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PubMatic
Practice questions for the skills this job lists, plus common questions for any interview. These are for practice: we don’t know the employer’s actual questions.
What is the difference between a list and a tuple, and when would you use each?
Python
How do generators work, and why would you use one over a list?
Python
Write a query for the second-highest salary in each department.
SQL
Explain the difference between INNER, LEFT and FULL joins with an example.
SQL
How would you find and fix a slow query in Postgres (EXPLAIN ANALYZE)?
PostgreSQL
What are transaction isolation levels, and which problems does each prevent?
MySQL
What causes a component to re-render, and how would you stop unnecessary re-renders?
React
Explain useEffect's dependency array with an example of a bug it can cause.
React
A server is slow. Which commands do you run first, and what do you look for?
Linux
Tell me about a process you made faster or cheaper. How did you measure it?
This kind of role
What do you know about PubMatic's products and customers?
PubMatic
Tell me about yourself in two minutes, focused on this role.
About you
Why this company, and why this role?
About you
Tell me about a time you disagreed with a teammate. What happened?
About you
Describe a time you failed or missed a deadline, and what you changed afterwards.
About you