NASDAQ Principal Engineer Interview Questions and Answers

3 programs to write in arrays linked lists and trees

Q1. Was asked questions on core Java, spring framework, apis and micro services
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Q1. What expertise will you bring to cme group of you join?
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Q2. Why are you quitting your current company?
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Quantitative interview

Java coding and c language

Q1. C language question
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Q2. Java language question
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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. 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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Q1. Java 8 questions
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Q2. Design questions
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Q1. All about domain & things mentioned in the CV
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Q1. About respective domain
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Q1. They present a practical situation and inquire about the decision-making process you would employ in that context.
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Q2. What are your top three achievements from your previous companies?
Ans. 
Successfully led projects that improved efficiency, increased revenue, and enhanced team performance in previous roles.
• Implemented a new project management system that reduced project delivery time by 20%.

• Led a cross-functional team to launch a product that generated $1M in revenue within the first quarter.

• Developed a training program that improved team productivity by 30%, resulting in higher employee satisfaction sco
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