Status: 5 years of experience as Full stack SW Engineer

Technical phone screen (1 hour)

• Coding questions related to Javascript closures.
• Given a Javascript Map as <Name, Year Of Birth>, find the year with maximum number of births.

Onsite

Round 1:

• https://leetcode.com/problems/longest-substring-without-repeating-characters/
• Implementation of Memoization in Javascript using closures

Round 2:

• https://leetcode.com/problems/binary-tree-inorder-traversal/, n-ary tree
• https://leetcode.com/problems/linked-list-cycle/
• https://leetcode.com/problems/peak-index-in-a-mountain-array/

Round 3:

• https://leetcode.com/problems/valid-palindrome/
• Javascript Prototypes
• Adding string reverse method to String prototype in Javascript

Round 4:

• Design an algorithm to find the shortest path between two people in a social network. Coding on white board
• Follow up question:- Scaling if we have a billion users

Round 5:

• Behavioral questions with Manager
• Some standard scalability questions related to Master Slave architecture, Load Balancer, Nginx Proxy etc
• Asynchronous programming in Javascript, Promises, async, await etc

Round 6: [Next day as first day went well. With Director]

• Behavioral questions

Got the offer the next working day.