What I’m about to tell you is a common scenario. Let me tell you a story about John. John was asked to implement a chess game. He thought it was a System Design question, so...

Here’s a hack - every day, before going home, go to a coffee shop. Spend an hour studying for interviews there. This will ensure you have a fixed time to study. Next, make sure you...

Don’t spend more than 15 minutes stuck on a question! (At least when you are starting your prep) If you are stuck for more than 15 minutes in the beginning, just look at the solution.

Massage the problem: Yes, you read it right. If you’re unable to find a solution, take different examples and try solving them manually. Solve how a human would solve them. After a couple of examples, a pattern might emerge.Draw out examples: For...

Here is a list, in chronological order: 1. Not asking clarifying questions Asking clarifying questions is expected in interviews nowadays. It is common interview protocol that even companies talk about. See: How to:...

System Design interview expectations have increased significantly in the past 3 years. Before that, interviewers were generally looking for good thought process and a fundamental sense of designing a system. When candidates started preparing more,...

Q. What are some of the questions asked in Google interviews? Anyone showing you a list of questions commonly asked at Google is misleading you, even if they don't intend to. Think about it, people...

A candidate once told me a phone screen story. He wrote an algorithm on an online editor, and at the end of the interview, the interviewer asked him - "If I copy-paste this code into an IDE, will...

In Interview Camp's Live Session, we discussed implementing a Search Index. This index consumes text documents, indexes them and lets users perform search queries. An example of such a system is Amazon ElasticSearch or Apache Lucene.

MongoDB? Cassandra? GraphQL? This seems like a common confusion among candidates. If you are asked to design a backend system, more than likely you will need to include a database. For scalable backends, these are generally in two...