Razorpay System Engineer Interview Questions and Answers

3 DSA coding questions were there of medium difficulty to be solved in 90 mins.

Q1. Was grinded on OOPs concepts and also told to implement them (inheritance, virtual function, friend functions). Some questions on dbms related to scaling. Some questions on system design (was asked how to ...read more
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Q1. In this round no DSA question was asked. Only theory related concepts were grinded like SDLC, DBMS, OS Then he asked me 2 puzzles 1. How can you make 3 equilateral triangles using 6 matchsticks without br...read more
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Q1. Was asked some typical HR round questions like-
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Q2. What was your 1 mistake that you regret now?
Ans. 
I regret not thoroughly testing my code before deployment.
• Not allocating enough time for testing

• Assuming the code was error-free without proper validation

• Not considering edge cases

• Lack of unit tests

• Not involving others for code review
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Q3. Was asked to explain my recent project and what challenges I faced?
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Q4. Was asked about my experience of internship.
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Q5. Discussion on some topics that was written on my resume.
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2 coding questions, 1hr

Q1. DS/Algo Questions about arrays and linked lists
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Q1. Technical interview with director
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Q1. Explain the react lifecycle functions and how they work
Ans. 
React lifecycle functions are methods that are automatically called at specific points in a component's life cycle.
• Mounting: constructor, render, componentDidMount

• Updating: render, componentDidUpdate

• Unmounting: componentWillUnmount
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Q2. Css box model, difference between padding and margin
Ans. 
Padding is the space inside the border of an element, while margin is the space outside the border.
• Padding is used to create space between the content and the border of an element.

• Margin is used to create space between the border of an element and other elements.

• Padding affects the size of the content area, while margin affects the positioning of the element.

• Example: padding: 10px will create 10 pixels of space inside ...read more
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Q1. What are your salary expectations in CTC and variables?
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Q2. Will you relocate to the location required?
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Take home test and it was super easy. Leetcode style 2 questions and you get 45 mins to complete it.

Coding test consisted of basic coding questions on codesignal platform

Q1. Describe the work experience
Ans. 
I have 5 years of experience working as a software engineer in a tech company.
• Developed and maintained software applications for various platforms

• Collaborated with cross-functional teams to design and implement new features

• Participated in code reviews and provided feedback to improve code quality

• Troubleshooted and resolved technical issues reported by users

• Stayed updated on latest technologies and trends in the industr
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Q2. Write code in python using pandas to perform certain tasks
Ans. 
Using pandas in Python to perform tasks for a Software Engineer interview question
• Import pandas library

• Read data from a CSV file using pandas

• Perform data manipulation and analysis using pandas functions

• Write the processed data back to a new CSV file
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Q1. What is your strength
Ans. 
My strength is problem-solving and analytical thinking.
• I have a strong ability to analyze complex problems and break them down into smaller, manageable tasks.

• I am skilled in identifying patterns and finding efficient solutions.

• I have experience in using various programming languages and tools to solve problems.

• I am a quick learner and adapt well to new technologies and frameworks.

• I have a track record of successfully d...read more
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Q2. What is class in java
Ans. 
A class in Java is a blueprint or template for creating objects that encapsulate data and behavior.
• A class can contain fields, methods, constructors, and nested classes

• Objects are instances of a class

• Inheritance allows a class to inherit properties and methods from another class

• Polymorphism allows objects of different classes to be treated as if they are of the same class

• Example: class Car { String make; int year; void...read more
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Q3. Blue print is the java class
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Q1. What are the reasons you want to work for Visa?
Ans. 
I want to work for Visa because of its innovative technology, global impact, and opportunities for growth.
• Visa is a leader in the fintech industry, constantly developing cutting-edge technology solutions.

• Visa has a global presence, allowing me to work on projects with international impact.

• Visa offers opportunities for career growth and development, with a focus on employee advancement.
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