Company - Fourkites
Location - Chennai || Remote
Position: SWE-2 Backend
EXP required: 1-3 YOE

** 1st Round **
* DBMS concepts
* Next Greater element
* LCA of a Binary tree
* Discussions on how Hashmap works, and what happens when collision occurs

I was confident of clearing this round
Got call on the next day for Round 2

** 2nd Round **
* DSA question -> Check if we can split given array into two equal sum (Subset sum variation) : Discussions were around how we can reduce SC more, I suggested to use hashmap instead of 2D DP array. He was satisfied
* DSA question -> K-largest numbers in stream of billions of numbers : Discussion was around, how use of Max-heap and Min-heap affect SC

Again, I was confident enough to clear this round, Now from here, only HM round was left.
Got the call on same day from TA, scheduled my Round 3 two days later.


** Round 3 **
* Past experiences
* SQL query for Nth highest salary in given table : Somehow tried to do using same approach as 2nd highest salary, but coudn't figure it out, Also, he wasn't able to get me.
* Asked me to implement Redis: I felt I wasn't getting his requirement clear as he wanted me to implement wrapper or core redis itself.
* Discussion on why ternary search is not efficient


*** Feedback ***
* It came negative, also told me that HM felt I used some external help.

Self - Realisation after Feedback

* felt I need to  increase my communication skills
* This was my only interview going on at that time So, felt lost again after feedback