TechBite 06/25

🚀 Hey folks, this is HT! I was born in China, am currently a junior SDE at Expedia in Seattle.

I received lots of help during my interview preps. I will share some content related to computer science job hunting here, which hopefully increase your chances of passing the tech interview.

🔨 Want to land a tech job in US? It’s not easy, but let’s get to it!

🔥Hot Interview Questions(06/25)

Meta:

1. First Question: String addition.

2. Second Question: Given a sorted array with duplicates, determine the count of unique numbers.

Amazon:

Four rounds of interviews conducted by members of the devices team:

1. System Design: The focus is on designing a Hospital Portal. Key topics include file storage, failover strategies, database management, and consistent hashing. A comprehensive understanding of system architecture templates is beneficial, including knowledge of queue systems like Kafka and monitoring tools like Prometheus/Grafana.

2. Topological Sort: Course Scheduler II.

3. Word Ladder.

4. Coin Change II.

   • Follow-up: Adjust the solution to account for a limited quantity of each type of coin.

DoorDash:

Two rounds of design interviews:

1. Design Round: Focus on designing a system for matching delivery riders with orders, including unique challenges in conducting A/B testing (unlike traditional internet settings, variations need to be switched over time slots rather than deployed simultaneously).

2. Restaurant Recommendation System.

One Round of Machine Learning:

1. Machine Learning Fundamentals: An interview round dedicated to discussing core concepts in machine learning.

🖼 Meme of the day

Let’s fight!