First round
1. You are given a string s containing only these characters: '(', ')', and '*'.
Write a function to check if the string is valid.
Rules:
Every '(' must be closed by a ')'.
Every ')' must have a corresponding '('.
The '*' can be treated as:
'('
')'
or an empty string
Your goal is to determine if the string can be valid by treating each * in the most beneficial way.
2. Given a string s containing only digits, return the number of ways to decode it.
Each digit or pair of digits represents a letter
Second round
1. Explain project
2. Design notification system (lld).
3
Otras evaluaciones sobre las entrevistas para el cargo de Senior Software Engineer en Walmart
Expect standard DSA questions focused on Maps and Trees, including traversal and optimization. There will likely be a system design interview to discuss architecture and scalability, followed by a Hiring Manager round covering experience, projects, and problem-solving approach.
Preguntas de entrevista [1]
Pregunta 1
Expect standard DSA questions focused on Maps and Trees
Me postulé a través de una facultad o universidad. Acudí a una entrevista en Walmart (Delta, BC) en ene 2026
Entrevista
5 step interview, I think it was way too much. They should not be stressing applicants like this. They should let you dictate what operating procedures you can demo without rancomly giving it to you on the spot.
Preguntas de entrevista [1]
Pregunta 1
Many questions about GraphQL and node.js for internal applications.
Me postulé en línea. Acudí a una entrevista en Walmart en ene 2026
Entrevista
The process was a Karat interview, technical video interview, and then the onsite. I was asked many questions about Java Springboot, but the position I applied did not mention anything about Java.