AppFolio Software Engineer II Interview Questions and Answers

Design a system for managing car parking.

• Determine the size and layout of the parking lot.

• Decide on the type of parking system (e.g. self-parking, valet).

• Implement a ticketing system for tracking cars and payments.

• Use sensors or cameras to monitor parking spaces.

• Integrate with a payment gateway for online payments.

• Provide real-time information on available parking spaces.

• Consider implementing a loyalty program for freq

Designing a system for an elevator

• Identify the requirements and constraints

• Determine the number of floors and elevators needed

• Choose the elevator algorithm (e.g. FCFS, SCAN, LOOK)

• Design the elevator controller

• Consider safety features (e.g. emergency stop, overload protection)

• Include user interface (e.g. buttons, displays)

• Consider maintenance and repair

• Test and optimize the system

A photo-sharing app system design

• Use a scalable architecture to handle large amounts of data

• Implement a secure authentication and authorization system

• Utilize a content delivery network (CDN) for fast image loading

• Allow users to tag and categorize photos for easy search and discovery

• Implement a notification system for likes, comments, and new followers