Freecharge Principal Engineer Interview Questions and Answers

Design a notification system for timely alerts and updates.

• Identify the target audience and their preferred communication channels (email, SMS, push notifications, etc.)

• Define the types of notifications to be sent (urgent alerts, reminders, updates, etc.)

• Implement a user-friendly interface for users to manage their notification preferences

• Include features like scheduling notifications, customizing notification settings...read more

Messaging queue system similar to Kafka for real-time data processing and streaming

• Kafka is a distributed streaming platform capable of handling high volumes of data in real-time

• It uses topics to organize data streams and partitions for scalability

• Producers publish messages to topics and consumers subscribe to topics to receive messages

• Kafka provides fault tolerance, scalability, and high throughput for data processing

• ...read more