Plaud.AI Backend Engineer Interview Experience
- Posted
- 11 May 2026
Summary
I went through an initial screen followed by two rounds: a system design round and a coding + behavioral round. I received an offer.
How it went
I applied using LinkedIn and the recruiter reached out to me via email.
I scheduled the initial screen with her. Later there were 2 rounds. The first one was a system design (1 hour), and the second one was a mix of behavioral questions for 10–15 minutes post introductions, along with a coding question to be solved within 35 minutes.
I got the offer.
Coding question - Leetcode Hard - LeetCode #76 — Minimum Window Substring
System design - Design a system where users can donate.
Questions asked (2)
- 01
Minimum Window Substring
Data Structures & Algorithms · Hard
Open the problemGiven two strings s and t of lengths m and n respectively, return the minimum window substring of s such that every character in t (including duplicates) is included in the window. If there is no such substring, return the empty string "".
The test cases will be generated such that the answer is unique.
- 02
Design Donation System
System Design
Design a system where users can donate. This includes handling user accounts, managing donations, processing payments, storing transaction history, and ensuring scalability and security.