Applied online and received a message from the recruiter indicating interest.

A phone screen involved a medium-level LeetCode question.

After that, I was offered an on-site interview:

• Round 1: Talk with the manager, describe your experiences, weaknesses, and strengths, with many similar behavioral questions.
• Round 2: 1.5-hour laptop interview to solve a problem. Zip up your solution to be graded by another person and the engineer conducting the interview.
• Round 3: Typical whiteboard coding interview, medium LeetCode level.
• Round 4: Design Interview.
• Round 5: Design Interview focusing on security.

Lyft is the only big company I've interviewed at that provides very detailed feedback on your performance.

In my case, I did well in all rounds except the laptop interview. The engineer expected me to know the trie data structure and use it to solve the problem.

I opted for a combination of a sorted dictionary and binary search, which is not optimal when dealing with strings.

Design a messaging app, focusing on login and keeping track of active conversations.