1p3a Experience · Mar 2026

Walmart Senior Software Engineer Interview Experience

SWE Manager Senior

Interview Experience

Applied through Referral, Recruiter contacted after 3 weeks to be available for all the interviews on Friday (Hiring Drive) 1st Round (DSA - Positive) - Coin Change - Longest non repeated substring 2n

Full Details

Applied through Referral, Recruiter contacted after 3 weeks to be available for all the interviews on Friday (Hiring Drive) 1st Round (DSA - Positive) - Coin Change - Longest non repeated substring 2nd Round (

LLD Positive) Design a payment processing system that handles credit card transactions with support for multiple payment gateways (Stripe, PayPal, etc.). 3rd Round (

HLD Neutral) Few qeustions related to System Design Patterns - Design a scheduler to support both sync and async Terrible experience - Interviewer always interrupts in the middle and do not have any patience 4th Round (Hiring Manager) - Current Project - Few Behavioual questions

Rejected after couple of days

About This Question

This is a candidate experience report from a walmart interview for a swe role (senior level) during the manager round reported in 2026.

It covers the following topics: Oop, Strings, System Design .