M2P Fintech Software Development Engineer 1 Interview Questions and Answers

It was a coding round of ReactJS and JS

Q1. Design Stopwatch in HTML CSS and JS
Add your answer

Q1. LLD/Machine coding - Design a social media application with users, posts, comments, likes, etc. There is also an admin who needs to approve post creation and can delete any post they want. Create appropria...read more
Add your answer

Q1. High-level design - Design a chat-based application like WhatsApp with only user-to-user chat feature (no group chats). Explain and draw out the E2E design by mentioning all the components and design decis...read more
Add your answer

Q1. Hiring Manager - basic questions like why Razorpay, what are your career goals, what does career growth look like for you, etc.
Add your answer

Write code for advance surrying in js

Implement custom hook for api call

Q1. Basic questions arounf my previous work
Add your answer
Q2. Technical questions around performance and code optimization
Add your answer

Q1. Just to know more about why i want the role
Add your answer

Testing an payment flow on the application

Basic puzzles of medium complexity level. No improvement required

DSA questions of easy level. Asked for memory optimisations.

Q1. High level system design of wallet payment system, took example of paytm. This was hld questions so just basic components
Add your answer

Q1. Low level system design of parking lot system
Ans. 
Design a parking lot system at a low level
• Divide system into components like parking spots, ticketing system, payment system

• Implement data structures like queues for managing parking spots

• Use algorithms like least recently used for spot allocation

• Consider scalability and performance in design
Answered by AI
Add your answer
Q2. Review of one of my projects at past company
Add your answer

75 min test with 18 Java theory questions

Q1. Synchronized keyword usage
Ans. 
The synchronized keyword in Java is used to control access to shared resources in a multithreaded environment.
• Synchronized keyword can be used to synchronize access to critical sections of code to prevent race conditions.

• It can be applied to methods or code blocks to ensure only one thread can access them at a time.

• Example: synchronized void myMethod() { // code }

• Example: synchronized(this) { // code }
Answered by AI
Add your answer
Q2. Message Queue types
Add your answer
Q3. Thread Contention
Add your answer
Q4. Java Profiling Tools
Add your answer
Q5. Abstract classes
Add your answer

1 hour , 1 medium and 1 hard
FInd Kth smallest element
Find Peak element

Q1. Parking Lot System design
Ans. 
Design a parking lot system with features like parking, unparking, and checking availability.
• Design classes for ParkingLot, ParkingSpot, Vehicle, etc.

• Implement methods for parking a vehicle, unparking a vehicle, and checking spot availability.

• Consider using data structures like HashMap or ArrayList to manage parking spots.

• Include features like ticket generation, fee calculation, and spot reservation.
Answered by AI
Add your answer

What is the difference between a HashMap and a ConcurrentHashMap?