Walmart·Software Engineer

Walmart Software Engineer interview experience

SeniorPosted Mar 2026 · Candidate report, summarized by Dataford

For an SDE-3 interview loop, I went through an online DSA round first, then an on-site round that combined low-level and high-level design.

The total experience centered heavily on core problem solving and system thinking.

In the online portion, I solved a Number of Islands problem and a Longest Consecutive Subsequence problem, both described as LeetCode-medium. Then the on-site round shifted into a ledger-style system design. I was asked about low-level and high-level design, along with FR/NFR and the schema—so I had to explain not just the architecture idea, but also what the requirements would look like and how data would be modeled.

I didn’t receive an offer, but the journey felt consistent: DSA first to prove fundamentals,

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