Summary
Applied for SDE-2 role at Cashfree Payments through Naukri. The interview process focused on problem-solving and object-oriented design. The candidate was rejected after two rounds.
Full Experience
## Background :
- Experience: 3+ years
- Current Role: Software Engineer 2 @ Unicorn Startup
- Current CTC: ₹18 LPA (Fixed) + 10% Annual Bonus
- Cashfree Payments Offer: ₹30 LPA CTC
## How It Started
Recruiter found my profile on Naukri, mailed me, and scheduled the interviews after my profile got shortlisted.
##
The interviewer asked a coding question related to Merge Intervals.
Problem statement:
- Multiple celebrities have given their available time slots.
You need to find a common time interval when all celebrities can meet.
- Tested skills in:
- Interval merging logic
- Sorting and boundary handling
- Time and space complexity discussion
✅ Completed the solution and discussed optimizations.
## Round 2 – LLD Round
- Task: Design an **Online Parking Lot System**
- Core functionalities:
- Search available parking slots
- Book / Reserve a slot
I covered class design, relationships, and flow diagrams.
The interviewer wanted a more refined approach for the search functionality, and while I justified my design choices, they expected a different perspective.
## Outcome
Got an update 2 days later that they decided not to move forward for this role.
Overall, it was a short and structured process, mainly testing problem-solving and object-oriented design depth.
Interview Questions (1)
Multiple celebrities have given their available time slots. You need to find a common time interval when all celebrities can meet.
Summary
I applied for an SDE-2 role at Cashfree Payments through LinkedIn and underwent two virtual interview rounds, focusing on Data Structures & Algorithms and Low-Level Design. Unfortunately, my application was rejected.
Full Experience
I had an interview experience with Cashfree Payments for the SDE-2 position. I applied via LinkedIn and my current experience is 4 years. The entire interview process was conducted virtually, consisting of two main rounds.
Round-1: Data Structures & Algorithms
This round focused on DSA and included two medium-level questions. The first question was about finding pairs in a list of song durations that sum up to a multiple of 120. The second question, which I don't recall perfectly, involved a flight dependency list and a list of delayed flights; I had to return all other flights affected by these delays. I solved this using a Breadth-First Search (BFS) approach.
Round-2: Low-Level Design
The second round was a low-level design challenge, where I was asked to design a system similar to Google Calendar. The expectations included designing appropriate classes and utility functions to handle several core functionalities: scheduling meetings for multiple users with specific start/end times, implementing recurring meetings with defined frequencies, setting user reminders, and presenting various calendar views (day, week, month).
After completing both rounds, I received a rejection.
Interview Questions (3)
Given a list of integers representing song durations, return a pair of durations such that their sum is divisible by 120.
Given a flight dependency list and a list of initially delayed flights, return a list of all other flights that will consequently be delayed.
Design the low-level architecture for a Google Calendar-like system. I was expected to design classes and implement required utility functions to support the following features:
- Schedule a meeting for a given list of users with specified start and end times.
- Schedule recurring meetings with a defined frequency.
- Set reminders for users.
- Display day, week, and month calendar views for users.