Zoomcar Senior Software Engineer Interview Questions and Answers

It was an online assessment. Some coding questions. Some cs fundamental mcqs. SQL query, Rest Api question.

An assignment to create a game using nodejs/ go lang/ java.

Q1. Discussion related to Assignment. Told some changes and told to add some more functionalities.
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Q2. Some APIS were given. It was case study. You had to show the dishes to a customer according to his preferences.
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Q1. Create a controller , service and repository methods and classes to save userDeatils in table using Spring Data JPA .
Ans. 
Create a controller, service, and repository to save user details using Spring Data JPA.
• Create a UserController class with appropriate mappings for saving user details.

• Create a UserService class with a method to save user details.

• Create a UserRepository interface that extends JpaRepository to handle database operations.

• Implement the saveUserDetails method in the UserService class to call the save method of the UserRepo...read more
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Q1. Fundamentals and Basics of android, projects you are worked on.
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It was sort of pair programming where you will be told to implement some feature. Here they check your coding style, your approach and the architecture you follow.

Q1. Advanced android questions were asked and some scenario based questions.
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Q1. It was managerial round, most discussion were on my projects and past experience.
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It was a coding round, online assessment. Medium level DSA questions

Q1. The discussion was based on system design, was asked to design parking lot system
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Q1. Hiring manager round, he asked about the problems that I solved
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Mettle Test based on DP based approach

Q1. Based on Tree, Graph, Segment Tree
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Q1. DS algo based on DP, Trees, Graphs
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Q1. Systed Design Round 1
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Q2. Design a Distributed Queue to have functionality similar to Kafka.
Ans. 
Design a distributed queue similar to Kafka.
• Use a distributed architecture with multiple brokers and partitions.

• Implement a publish-subscribe model for producers and consumers.

• Ensure fault tolerance and high availability through replication and leader election.

• Use a log-based storage system for messages and offsets.

• Provide support for message ordering and retention policies.

• Implement a scalable and efficient message de...read more
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Q3. Design Price Tagger System
Ans. 
Design a Price Tagger System
• Identify the products to be tagged with prices

• Determine the pricing strategy (e.g. cost-plus, value-based, etc.)

• Choose the appropriate tagging technology (e.g. barcode, RFID, etc.)

• Develop a user-friendly interface for tagging and updating prices

• Implement a database to store product and pricing information

• Integrate with point-of-sale systems for accurate pricing at checkout
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Basic coding test from hackerearth.

Q1. Design Search Systems
Ans. 
Designing search systems involves creating efficient algorithms and data structures to quickly retrieve relevant information.
• Understand the data structure of the search system (e.g. inverted index, trie)

• Implement efficient search algorithms (e.g. binary search, hash tables)

• Consider scalability and performance optimization techniques (e.g. caching, indexing)

• Include user-friendly features like autocomplete and spell corr...read more
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Q1. The interview was outsourced to Interview Vector.
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Q2. One medium DSA question and an LLD question.
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