Amazon Development Centre India Senior Sse Software Engineering Analyst Interview Questions and Answers

Q1. Kafka related questions
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Q2. Find 2 sum , follow-up question Triplet sum in array
Ans. 
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
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Q3. How to handle performance issue in java app
Ans. 
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
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Q1. Design Cron job scheduler
Ans. 
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
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Q2. EM role- so scenario based question
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Q1. Design ticket booking system
Ans. 
Design a ticket booking system for events or transportation services.
• Identify user requirements and features needed (e.g. seat selection, payment options, booking confirmation)

• Design database schema to store event details, user information, and booking records

• Implement user interface for users to search, select, and book tickets

• Develop backend system to handle booking requests, seat availability, and payment processing

• ...read more
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Q1. Problem solving leetcode problems
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Q2. System design questions leetcode
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Q3. Project architecture and understanding
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Q4. People Management and conflict management
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Q5. Leadership principles and qualities
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Q1. Technically opinion on the project viable to take up work as per requirements is important to take up work.
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Q2. Civil works can be carried out duly comparing with approved drawings as per PERT chart
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Q1. Design a throttling service
Ans. 
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
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It was good, more like a brain storming session

Q1. Please introduce yourself
Ans. 
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
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Q2. What type of benefit you like in Amazon company
Ans. 
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
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Q1. Sys design for A scalable storage
Ans. 
Design a scalable storage system to handle increasing data volume and user traffic.
• Use distributed file systems like HDFS or GlusterFS for storing large amounts of data across multiple nodes.

• Implement sharding to distribute data across multiple servers to improve performance and scalability.

• Utilize caching mechanisms like Redis or Memcached to reduce latency and improve read/write speeds.

• Consider using cloud storage so...read more
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