Money View Backend Developer Interview Questions and Answers

There are 3 questions. basic to medium level.

Q1. Introduction about yourself
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Q2. Explain about your projects
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Q3. Solve a Coding problem
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Q4. Walk through project code
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I will walk through a project code to explain its structure and functionality.
• Start by explaining the overall architecture of the project

• Discuss the main components/modules and their interactions

• Explain any key algorithms or data structures used

• Highlight any design patterns or best practices implemented

• Provide examples of specific code snippets to illustrate your points
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Q1. Microservices architecture
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Q2. High scale system design
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Designing high scale systems involves careful planning for scalability, reliability, and performance.
• Identify the key components of the system and their interactions

• Use distributed systems and microservices architecture for scalability

• Implement caching mechanisms to improve performance

• Utilize load balancing and horizontal scaling to handle increased traffic

• Monitor system performance and implement auto-scaling mechanism
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Optimise SQL queries to transmit large datasets and check for resiliency

Q1. Does Java support pass by reference?
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Yes
• Java uses pass by value for all variables, including object references.

• When an object reference is passed as an argument, a copy of the reference is passed, not the actual object.

• Modifying the reference inside the method will not affect the original reference outside the method.

• However, modifications to the object's state inside the method will be visible outside the method.
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Q2. Explain Singleton Pattern
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Singleton pattern restricts the instantiation of a class to a single object.
• Singleton pattern ensures that only one instance of a class exists throughout the application.

• It provides a global point of access to the instance.

• Commonly used in scenarios where a single instance needs to coordinate actions across the system.

• Example: Database connection manager, logger, configuration manager.
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Q1. Internal Implementation of HashMap
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HashMap is implemented using an array of linked lists to handle collisions.
• HashMap stores key-value pairs in an array of linked lists

• Hash function is used to determine the index of the array where the key-value pair will be stored

• Collision handling is done by chaining, where multiple key-value pairs with the same hash value are stored in the same linked list

• HashMap allows null keys and values

• HashMap is not synchronized...read more
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Scenarios base conding round

Questions on strings in javascript.
Basic javascript and typescript.

Q1. Questions on cloud technologies
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Q1. Cultural fit and salary related discussion
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Q1. Basic questions on data structures
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Q1. Second round was Managerial Round. The interviewer basically had a conversation with me and asked some hr questions also.
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Q1. Basic HR questions
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It was simple program of url shorting for registered and non registered users each request must have unique shortened url.

Q1. Palindrome implementation and run time
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A palindrome is a word or phrase that reads the same backward as forward. Implementing it involves comparing the first and last characters and iterating towards the middle.
• Implement a function that takes a string as input and returns true if it is a palindrome, false otherwise.

• Use two pointers, one starting from the beginning and the other from the end, and compare the characters at each position.

• If the characters matc...read more
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Q2. DSA and various algorithms and run time
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Q1. This round was one on one with VP of engineering. Basic q and a regarding role and responsibilities
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Q1. Relocation, Reason For job change, future plan, careers objective
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