Interview questions asked at Snapchat

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

What is the purpose of a database index?

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

Completing project with tight deadline and limited resources

What is HTTPS and why is it important?

What is a session in web development?

Handled a difficult situation and solution

Handling new requirements mid-project

How do you stay updated with industry trends and developments

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

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?

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

Time you exceeded expectations to make a significant impact

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