PhonePe | Software Engineer | Interview Experience | Selected

• Company: PhonePe

• Role: Software Engineer

• Experience: 3 years and 4 months

• Location: Bangalore

• Final Result: Selected

The interview process consisted of four rounds:

• Machine Coding

• Problem Solving and Data Structures

• System Design

• Hiring Manager

Round 1: Machine Coding (2 Hours)

I was asked to design a PhonePe Wallet System that would allow users to add money to their wallets and transfer funds between users. There were a few additional functional requirements, although I don't remember all of them now.

I had 1.5 hours to implement the solution, followed by a 30-minute code review. The review focused on my implementation and the overall design of the solution.

Result: Positive

Round 2: Problem Solving and Data Structures (1 Hour)

I was given two coding problems:

1. Minimum Window Substring: The problem involved a variation of the standard Minimum Window Substring problem. I don't remember the exact constraints.

2. Job Sequencing Problem: I was asked to solve the classic scheduling and optimization problem.

Round 3: System Design (1 Hour)

I was asked to design a Customer Issue Resolution / Ticket Handling System, i covered both high-level design (HLD) and low-level design (LLD). I had to think through the system's overall architecture as well as its detailed components and interactions.

Round 4: Hiring Manager (1 Hour)

The round started with a deep dive into my projects, team, and day-to-day responsibilities, discussion mainly on the projects I had worked on.

The main areas of discussion were:

• Project decisions: The approaches I chose to solve different problems and why I preferred them over alternative solutions.

• Project impact: The outcomes and impact of my work.

• Engineering excellence: Tasks related to improving engineering practices and code quality.

• Design reviews: My involvement in design discussions and reviews.

• Career goals: My reasons for looking for a change and why I wanted to join PhonePe.

Final Outcome: Selected

I received the final confirmation four days after the interview process.