Interview questions asked at Delta Air Lines

Handling a co-worker frequently late to meetings

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

What is the purpose of a database index?

How did you enhance a past company's services

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

What is HTTPS and why is it important?

Decision making and productivity in unclear scenarios

When did you display work integrity

What is a session in web development?

Handled a difficult situation and solution

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?

What are the benefits and drawbacks of using event-driven architecture in backend systems?

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

What is the circuit breaker pattern and how does it help in building resilient microservices?