Observe.AI Senior Software Engineer Interview Questions and Answers

Basic dsa questions and java spring boot questions

Q1. Bookmyshow design
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Q2. Notification service design
Ans. 
Design a notification service for sending alerts to users.
• Use a scalable messaging system like Kafka or RabbitMQ to handle high volume of notifications.

• Implement a notification queue to ensure reliable delivery of notifications.

• Include support for different types of notifications such as email, SMS, and push notifications.

• Allow users to customize their notification preferences and frequency.

• Implement monitoring and log...read more
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Q1. Design and code a zoo management system.
Ans. 
A zoo management system to track animals, enclosures, staff, and visitor information.
• Create classes for animals, enclosures, staff, and visitors

• Implement functions for adding, updating, and deleting records

• Include features for scheduling feeding times, cleaning enclosures, and managing staff shifts
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Standard DSA questions

Q1. Standard HR stuff.
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View of B Tree , internal of hashmap

2 Leetcode medium - LRU Cache and sliding window question

Q1. Design Whatsapp
Ans. 
Design a messaging app like Whatsapp
• Implement end-to-end encryption for secure messaging

• Allow users to send text messages, images, videos, and documents

• Include features like group chats, voice and video calls, status updates

• Provide option for users to share their location

• Develop a user-friendly interface with customizable settings
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4 Coding Questions Leetcode Level Medium to Hard. Had to solve it within 1.5 hours.

Was able to solve 2 questions - One hard and one Medium. Hadn't enough time to solve all.

Q1. DSA based round. Was asked to write 3 APIs based on the the given n-ary tree.
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Q2. Questions based on Path, end node, best path, etc.
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Q1. System Design round : Was asked to design RDBMS for the given problem.
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Q1. HM Round : Mostly behavioral based around Twilio Magic Values
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Q1. Bar Raiser Round : Taken by a director. Was asked behavioral questions again.
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Leetcode medium to hard problems, with unit tests around the implementation.

Q1. Basic HR questions - like past experiences, getting to know candidate, how frequently you switch etc
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Q2. Salary expectations, check on last salary drawn etc
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Aptitude of from all topics

Q1. Node js & javascript coding question
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Q2. Array related questions
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