HealthifyMe Senior Software Engineer Interview Questions and Answers

Q1. Template and Reactive Forms in Angular
Ans. 
Template and Reactive Forms in Angular are two ways to handle forms in Angular applications.
• Template Forms are based on the traditional HTML forms and are easy to use for simple forms.

• Reactive Forms are more flexible and powerful, allowing for complex form validation and dynamic form controls.

• Template Forms use two-way data binding, while Reactive Forms use a more reactive approach with observables.

• Reactive Forms are r...read more
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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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I was asked question on sliding window on finding the largest subarray with all distinct numbers. The interviewer was very helpful.

Js based question and 1 event bubbling wuestion

Q1. React based question, redux discussion
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Q1. Normal hr discussion
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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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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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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.