Me postulé en línea. El proceso tomó 3 semanas. Acudí a una entrevista en Walmart (Carlsbad, CA) en jun 2019
Entrevista
The first interview was a live online coding challenge, I had the question about how to get the least amount of coins for giving change.
After that, I had a 5-6 hour in person interview on the Carlsbad campus. Two of the interviewers were remote from the Sunnyvale office. All of them had you do whiteboarding/live coding session. Questions included:
- Networking / how does the internet work
- Fibonacci using recursion and not using recursion
- Currying
- Closures
- Find the highest and lowest sum out of an array
- Using reduce to change an array of objects to one object
- shuffle a deck of cards
- Implement your own forEach
- Performance of JS array functions
- How do you think Youtube works?
Overall I thought it was not too bad, I thought I did well. I was kind of surprised when I didn't get an offer. There was one interviewer that I think didn't like me, he was condescending and bad at communicating. I would ask him what he wanted, he would give me a one word answer, and when I tried to continue he would tell me "no not that way". And when I didn't know something, I admitted it, but he wouldn't move on from there.
Preguntas de entrevista [1]
Pregunta 1
- Networking / how does the internet work
- Fibonacci using recursion and not using recursion
- Currying
- Closures
- Find the highest and lowest sum out of an array
- Using reduce to change an array of objects to one object
- shuffle a deck of cards
- Implement your own forEach
- Performance of JS array functions
- How do you think Youtube works?
Surprisingly easy-going for a big name like Walmart. The interview started with a simple coding challenge focused on detecting cycles in directed graphs. I felt pretty relaxed during the technical rounds, which were straightforward and conversational. The wild part was recognizing the question as a close variant of one I had practiced on PracHub just days earlier. It definitely boosted my confidence. Overall, I was impressed with the process and was thrilled to receive an offer, which I happily accepted.
Preguntas de entrevista [1]
Pregunta 1
Course Schedule (detect a cycle in a directed graph using topological sort / DFS)
First, standard short phone call with recruiter. Then a 1-hour interview with an engineer on the team, asked about technical experience and background, and did a live coding assessment via video call. Fairly standard Leetcode style questions
Intense but rewarding — the interview for the Software Engineer position at Walmart Labs was tougher than I anticipated. The technical rounds included an LRU Cache implementation question where I had to articulate my design thoughts on thread safety, followed by a complex system design for a real-time inventory service. What made a difference in my prep were the company-specific prompts I found on prachub.com; they really helped me understand the types of questions I might face. Despite the challenging nature of the interviews, I ultimately received an offer but chose to decline.