Wayfair Engineering Manager Interview Questions and Answers

My typing speed is 80 words per minute with 98% accuracy.

• Typing speed: 80 words per minute

• Accuracy: 98%

• Experience with typing reports, emails, and documents efficiently

Handle late delivery by communicating with the customer, offering solutions, and ensuring future deliveries are on time.

• Communicate with the customer about the delay and apologize for the inconvenience.

• Offer solutions such as a discount on the next purchase or expedited shipping.

• Ensure future deliveries are on time by monitoring the process closely and addressing any issues promptly.

Design middleware to handle requests and responses for homepage

• Identify the key functionalities needed for the homepage middleware

• Implement caching mechanisms to improve performance

• Ensure proper error handling and logging

• Consider scalability and load balancing for high traffic

• Integrate with analytics tools for tracking user behavior

Program to check if a number is a palindrome.

• Convert the number to a string to easily check for palindrome

• Reverse the string and compare it with the original string

• If they are the same, the number is a palindrome

Hooks are a feature in React that allow you to use state and other React features in functional components.

• Hooks were introduced in React 16.8.

• They allow you to use state and other React features without writing a class.

• Commonly used hooks include useState, useEffect, useContext, and useReducer.

• Hooks must be used at the top level of your functional component.

• Example: const [count, setCount] = useState(0);

Design a high-level architecture for a software system

• Identify the main components of the system

• Define the interactions between the components

• Consider scalability, security, and performance

• Choose appropriate technologies and frameworks

• Create a diagram to visualize the architecture

To delete the nth node from the end in a linked list, we can use a two-pointer approach.

• Use two pointers, one to traverse the list and another to keep track of the nth node from the end.

• Move the second pointer n steps ahead of the first pointer.

• When the second pointer reaches the end of the list, the first pointer will be at the nth node from the end.

• Adjust the pointers to delete the nth node.