Slice Interview Experience | SDE 2

Slice SDE-2 Interview Experience | 3 Rounds | Rejected at HM Round

Sharing my recent interview experience with Slice for an SDE-2 role. Hopefully this helps someone preparing for similar rounds.

Round 1 - Machine Coding (~90 mins) ✅

Verdict: Positive

The problem was to build a working Wallet System.

Requirements included:

• Credit money to a wallet
• Debit money from a wallet
• Transfer money between users
• API to fetch wallet balance
• API to fetch user transactions

The focus was not just on writing code, but on building something that was reasonably production-ready and handling different scenarios.

Round 2 - HLD (~1 hour) ✅

Verdict: Positive

Designed a Ticket Booking System similar to BookMyShow.

The interviewer went fairly deep into:

• System architecture
• Database design
• API design
• Handling concurrent booking requests
• Preventing double booking
• Concurrency and race conditions
• Scalability and failure scenarios

This was probably the most grilling round of the process.

Round 3 - Hiring Manager (~1 hour) ❌

Verdict: Rejected

This round focused mainly on:

• Past project experience
• Deep dive into projects/responsibilities
• How I would scale/expand one of my projects
• General engineering and behavioral questions
• Situational/HR questions

Thanks to the interviewers for the discussions and the learning experience. Back to preparing and applying.

Hope this helps anyone preparing for Slice or similar SDE-2 interviews.