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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
How do equals() and hashCode() work together in a HashMap?
Java
Explain the difference between checked and unchecked exceptions.
Java
Design a simple, highly available web app on AWS. Which services and why?
AWS
What's the difference between an IAM role and an IAM user?
AWS
How would you design a paginated, versioned REST API? Which status codes would you return?
REST APIs
A key metric dropped 20% yesterday. How do you investigate?
Data analysis
How would you design an A/B test for a new feature, and how long would you run it?
Data analysis
What's the difference between a transformation and an action, and why does it matter?
Spark
Tell me about a dataset you cleaned. What problems did you find?
This kind of role
How would you explain a model's result to a non-technical manager?
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