I recently gave interview at Sprinklr for SSE role backend. The process consists of 3 rounds total (All three techincal)

Round 1: DSA -> 1hr

Problem:

Find the total distinct subsequence possible in an array A such that a[i] - a[j] = (i-j) * d

Was able to solve this after a little hint. You can try doing some math around the above equation and can solve it.

Verdict: Hire

Round 2: DSA + System design -> 1hr

This was one of the best round I have given, how interviewer carried this whole problem was interesting.
Problem: This was the question: https://leetcode.com/discuss/post/685338/microsoft-onsite-design-the-t9-predictiv-ef6a/

PS: Didn't knew this feature exists in all phone, discovered in the interview :)

Was able to suggest a typical trie structure based solution and then discussed how we can modify the standard trie structure to search contacts more efficiently.

Later, I was asked how I would productionize this system and what the table schema would look like.

Verdict: Strong hire

Round 3: Hiring manager -> 1hr

This was the first system design round I had given. I was not able to structure my answer properly and panicked a lot because I was unfamiliar with the system. Somehow, I was able to design a working solution, but it was not the most optimal one.

I was also not communicating with the interviewer throughout the discussion. I explained the design only after completing it entirely. I think that was the point where things went wrong.

Problem:

Channel: FB, IG, TW..
Partners: Microsoft, Dell, Amazon, Google
Accounts: DellFB, AmazonTW, GoogleTK..

Millions of messages across thousands of these accounts daily

Design a scalable Alert Aggregation and Notification System for a social media message ingestion pipeline at Sprinklr.

Monitoring failures
Deduplication of alerts
Escalation policy
Auto Recovery

Verdict: No hire
After this round, I received feedback from the HR stating that they would not be moving forward with my application. However, detailed feedback was not provided.

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