Interview questions asked at Groupon

Can you explain what an API is and how it works?

What is the purpose of a database index?

Time you faced a difficult decision affecting others

Time you exceeded expectations to make a significant impact

Describe the purpose and use of environment variables in app development.

First action item if hired

What is HTTPS and why is it important?

How do you handle setbacks

Describe a time you ensured the security of sensitive data in a backend system. What measures did you take?

Describe a time you implemented a complex data migration. What challenges did you face and how did you address them?

How would you design a system for real-time analytics on a high-traffic e-commerce website?

How would you ensure scalability and reliability of a microservices app during peak traffic?

Describe how you optimized a poorly performing backend service and the steps you took.

Can you describe the main steps in a business analysis process?

What is a business model canvas, and how do you use it?