5paisa Capital Ltd. Software Developer Interview Questions and Answers

Implement some LLD and use clean code formulas

Better be prepared for all deep dive questions about tech and project you worked

Round duration - 30 minutes
Round difficulty - Easy

Basic questioning about my work experiences, things I have developed and created, my work experience(internships). The challenges which I have faced and how I overcame them. Basic questions about some android concepts

Q1. What puzzles were asked during the interview, and can you describe the projects you discussed?
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Round duration - 45 minutes
Round difficulty - Medium

The interviewer was very friendly and asked about various things and tried to judge my understanding of the projects and how deep I know about the concepts I have implemented in my projects

Q1. RxJava
RxJava
Ans. 
RxJava is a popular library for composing asynchronous and event-based programs using observable sequences.
• RxJava provides a functional API for working with asynchronous data streams.

• It uses Observables to emit items and notify subscribers.

• Operators can be used to transform, filter, and combine these streams of data.

• Schedulers are used to control the threading behavior of these operations.

• Example: Creating an Observabl...read more
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Round duration - 40 minutes
Round difficulty - Medium

This was a system design round

Q1. Can you explain the fragment lifecycle in Android system design?
Ans. 
Fragment lifecycle in Android involves various states and methods for managing UI components.
• Fragments have several lifecycle states such as created, started, resumed, paused, stopped, and destroyed.

• Methods like onCreate(), onCreateView(), onResume(), onPause(), onStop(), onDestroy() are used to manage fragment lifecycle.

• Fragment lifecycle is closely tied to the hosting Activity's lifecycle.

• Example: When a fragment is ...read more
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There was aptitude test out of which 12 candidate selected

Q1. Asked me about my project in details
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Q2. What does group by do in SQL.
Ans. 
GROUP BY in SQL is used to group rows that have the same values into summary rows.
• GROUP BY is used with aggregate functions like COUNT, SUM, AVG, etc.

• It is used to summarize data by grouping rows based on specified columns.

• GROUP BY is often used in conjunction with the SELECT statement.
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Q3. Then asked about spring boot
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Focused on the functionality of hashmaps and sorting.

Q1. Follow up questions based on coding test.
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Q2. Multiple systems design questions starting with different design patterns and principles, Database sharding, cap theorem. Multiple concepts from springboot were asked.
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Q1. More focused on system design, task scheduler and db schema etc. Also multiple questions from resume.
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Q1. Design a Parking Lot
Ans. 
Design a parking lot system with features like parking, retrieving, and displaying available spots.
• Create a class for ParkingLot with attributes like total spots, available spots, and a list of parked vehicles.

• Implement methods for parking a vehicle, retrieving a vehicle, and displaying available spots.

• Use data structures like arrays or lists to manage parked vehicles and available spots.
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Solve a system design problem in 1 hour

Q1. Search word in a file
Ans. 
Search for a specific word in a file
• Read the file line by line

• Check each line for the search word

• Return the line number if word is found
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Q2. Design elevator system
Ans. 
Design elevator system for efficient and safe transportation
• Consider the number of floors in the building

• Implement algorithms for efficient elevator routing

• Include safety features such as emergency stop buttons

• Design user interface for passengers to select floors

• Utilize sensors for detecting weight and preventing overloading
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Q1. Design A ticketinf system.
Ans. 
Design a ticketing system for managing and tracking tickets.
• Create a user-friendly interface for users to submit tickets.

• Implement a system for assigning tickets to appropriate teams or individuals.

• Include a feature for tracking the status of tickets and updating users on progress.

• Allow for prioritization of tickets based on urgency or impact.

• Generate reports on ticket resolution times and overall performance.

• Integrate...read more
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Q1. LLD: Design Google Calendar
Ans. 
Design Google Calendar for scheduling events and appointments
• Use a clean and user-friendly interface for easy navigation

• Implement features like creating events, setting reminders, and sharing calendars

• Include options for recurring events and color-coding for organization
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Q2. Coding: Take Home Assignment
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Q3. HLD: System Design, Projects
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