Flipkart Engineering Manager Interview Questions and Answers

Finding 2 sum and Triplet sum in an array of strings

• Use a hashmap to store the elements and their indices for quick lookup

• For 2 sum, iterate through the array and check if the target - current element exists in the hashmap

• For Triplet sum, fix one element and find the other two using 2 sum approach

Performance issues in Java apps can be handled by profiling, optimizing code, using caching, and scaling resources.

• Use profiling tools like JProfiler or VisualVM to identify bottlenecks

• Optimize code by reducing unnecessary loops, improving algorithms, and minimizing database queries

• Implement caching mechanisms like Redis or Memcached to store frequently accessed data

• Scale resources by adding more servers, using load ba

Design a Cron job scheduler for automating tasks at specific times.

• Define the schedule using cron expressions (e.g. '0 0 * * *' for daily at midnight)

• Implement a job queue to manage tasks and their execution

• Include error handling and logging for monitoring and troubleshooting

• Consider scalability and performance optimizations for handling large number of jobs

A throttling service limits the number of requests a user can make to a system within a specific time frame.

• Implement rate limiting based on user or IP address

• Use tokens or API keys to track usage

• Set limits on the number of requests allowed per minute/hour/day

• Return appropriate error responses when limits are exceeded

I am an experienced engineering manager with a passion for leading teams and delivering innovative solutions.

• I have over 10 years of experience in managing engineering teams

• I have a track record of delivering successful projects on time and within budget

• I am skilled in both technical and managerial aspects of engineering

• I am a strong communicator and collaborator, able to work effectively with cross-functional teams

• I a...read more

I appreciate the comprehensive benefits package offered by Amazon.

• Health insurance with dental and vision coverage

• 401(k) plan with company match

• Paid time off and holidays

• Employee discounts on Amazon products and services

• Maternity and paternity leave

• Flexible spending accounts for healthcare and dependent care expenses