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Zepto Interview Experience
Summary
I interviewed at Zepto for a role (likely SDE) and went through multiple rounds including DSA, Design (LLD & HLD), Hiring Manager, and HR. Although I successfully solved the DSA questions and one design problem, I was ultimately rejected.
Full Experience
DSA Rounds:
https://leetcode.com/problems/container-with-most-water/
https://leetcode.com/problems/word-ladder/description/
✅ Successfully solved both questions during the interview.
Design (LLD) & HLD:
Coupon Creation Service
- Designed DB schema and system for different coupon types: percentage off, flat off, discount, cashback, etc.
Interviewer was not fully convinced by the approach
- Frequency-Based Coupon Selection (every 1-minute window):
Given a list of coupons with frequency, designed a system to randomly select coupons based on frequency.
Proposed an asynchronous job-based approach to pre-generate coupon IDs and do matching.
Interviewer was convinced and satisfied with this solution.
Hiring Manager Round:
Resume-based discussion
Talked about past project challenges
Solved LCA in Binary Tree
HM was approachable, calm, friendly—overall good interaction and some casual conversations as well.
HR Round:
General discussion and behavioral questions.
However, no updates from HR despite multiple follow-ups over the past week.
Eventually found out: Rejected
Interview Questions (5)
Designed DB schema and system for different coupon types: percentage off, flat off, discount, cashback, etc.
Given a list of coupons with frequency, designed a system to randomly select coupons based on frequency.
The problem asks to find the Lowest Common Ancestor (LCA) of two given nodes in a binary tree.