Loading page
GHX
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
Explain the event loop: what happens between a setTimeout callback and a resolved promise?
JavaScript
What is a closure? Give an example where one is useful.
JavaScript
When would you use a union type versus an interface with optional fields?
TypeScript
What does `unknown` give you that `any` doesn't?
TypeScript
What are transaction isolation levels, and which problems does each prevent?
MySQL
When would you embed documents versus reference them in MongoDB?
MongoDB
Walk me through a project you built: the design, a hard bug and what you'd change.
This kind of role
Reverse a linked list, then explain its time and space complexity.
This kind of role
How would you design a URL shortener?
This kind of role
What do you know about GHX's products and customers?
GHX
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