Senior Technical Staff Member Interview Questions and Answers

Design an online shopping system with catalog, payment, and notifications systems.

• Implement a user-friendly catalog system with search and filter options

• Integrate secure payment gateways for seamless transactions

• Set up automated notifications for order confirmations, shipping updates, and promotions

Design an async system to send notifications to users

• Use a message queue system like RabbitMQ or Kafka to handle asynchronous communication

• Implement a notification service that processes and sends notifications based on user preferences

• Utilize push notifications for mobile devices and email notifications for desktop users

• Include error handling and retry mechanisms to ensure delivery of notifications

Auto complete works by predicting and suggesting possible words or phrases as a user types in a search bar or text field.

• Auto complete uses algorithms to predict and suggest words based on the input provided by the user.

• It can be based on previous searches, popular searches, or context of the current search.

• Auto complete can also offer suggestions based on the first few letters typed by the user.

• Examples: Google search bar, email address suggestions in email clients.

Cloning a graph involves creating a deep copy of the original graph structure.

• Create a new graph object

• Iterate through the nodes of the original graph

• For each node, create a corresponding node in the new graph and add it to the new graph

• For each edge in the original graph, add a corresponding edge in the new graph