BetaNXT Software Engineer Interview Questions and Answers

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
Answered by AI
Add your answer
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
Answered by AI
Add your answer

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
Answered by AI
Add your answer

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.
Answered by AI
Add your answer

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
Answered by AI
Add your answer
Q2. Coding: Take Home Assignment
Add your answer
Q3. HLD: System Design, Projects
Add your answer

DSA, factorial based question and stack based question

Q1. Polyfills , basic react app
Add your answer

Q1. Project overview?
Add your answer
Q2. Technical programming questions?
Add your answer

This was a live coding round where the problem statement was shared 15 minutes before the interview. The time duration was 2 hours.
The problem statement was a Driver allocation system. I had to write few APIs such as:
1) take input for source, destination, distance
2) allocate free driver to new booking
3) record driver's

The complete backend app had to be developed for this to make a working code. The database, language was completely free for choosing.
The program had to be developed on the system and code had to be shared on mail later.

Q1. Write a code in Go to find kth minumum element from a given list of numbers.
Ans. 
Code in Go to find kth minimum element from a given list of numbers.
• Sort the list of numbers in ascending order

• Return the kth element from the sorted list
Answered by AI
Add your answer
Q2. How do goroutines work internally?
Ans. 
Goroutines are lightweight threads that are managed by Go runtime.
• Goroutines are created using the 'go' keyword.

• They are multiplexed onto OS threads by Go runtime.

• They communicate using channels.

• They are scheduled cooperatively, not preemptively.

• They have a small stack size (2KB) compared to OS threads.

• They are used extensively in Go for concurrency and parallelism.
Answered by AI
Add your answer

Q1. Design a system for food delivery app like Swiggy. Then questions based on the design.
Add your answer