Status: Offer Accepted
Position: Senior Software Engineer at Warner Bros & Discovery
Location: Hyderabad, India
Date: July, 2024

Round 1:

1. Find kth Most Frequent Element: Similar to Top K Frequent Elements - Did not code, provided the approach and explained the time complexity. The interviewer was satisfied with the explanation.

2. Search in a Sorted Rotated Array: Search in Rotated Sorted Array

3. Question on Streams and Collectors : https://github.com/sanjaykatta95/ForInterview/blob/main/src/WarnerBros/DSARound.java

Verdict:

Cleared

Round 2:

Interview:

Coin Change: Coin Change
Spiral Matrix: Spiral Matrix

Verdict:

Cleared

Round 3:

• Operational and Engineering Excellence Round:
• Explain how you would design a CI/CD framework and handle deployments.
• Describe the different types of testing you would conduct before pushing code to production.
• Discuss any code analysis tools used in your current application.
• If an issue arises in production, how would you handle it? Explained about setting up alerts.
• Describe a production issue you encountered and how you resolved it.
• What measures can be taken to minimize production issues?
• How do you ensure the most important features are always working? Explained about P0, P1 flows, and feature flags for enabling or disabling features.
• Have you set up meetings with the business in case of any issues?
• How would you scale the application? Explained about being proactive, monitoring traffic, having autoscaling in place, and setting up alerts for memory and CPU utilization.
• If there's a memory or CPU spike in the application, how would you identify it, what tools would you use, and how would you fix such issues?

Verdict:

Cleared

Round 4:

System Design round :

• Design Instagram News Feed:
• Users should be able to see the posts of the users they follow.
• We should be able to see who are all the followers for a particular user.
• Asked to design the schema.
• Discussed the choice of databases in the design (S3 for storing images, videos, etc., and Postgres for storing information about users, posts, and followers).
• Asked to write a few APIs.
• How would you handle scaling issues?

Verdict:

Cleared. Got the offer :)