Software Engineer
Walmart · Mid-level
Prepare for the Walmart Software Engineer interview with 4 practice rounds and what each one looks for. Pick any round and an AI interviewer runs it with you at full length, with follow-up questions. Afterwards you’ll see what went well and what to work on next.
Your first 60 minutes of practice are free. No card needed.
Next: your first full round
Do the First coding screen round.
One full practice round shows where you stand before you work on anything specific.
The rounds
Pick a round to see what it asks of you and where you stand on it.
First coding screen
Checks that you can solve a medium data structures and algorithms problem with correct, clear code and explain its time and space cost.
Coding · 60 minSet up this round
Not tried yetNo attempt yet.
What strong sounds like
- Names a brute-force option, then selects a better data structure or pattern and says why.
- Code handles the main case and would compile as written. Tracing a sample input by hand shows correct output.
- Gives correct time and space complexity for the final code without prompting.
Expect to be pushed on
Interviewer asks for a faster approach or a lower memory use.
Shapes of problem you may get
- Medium problem on strings, heaps, or arrays with a no-brute-force requirement
- Short debugging task in a web-style code sample
- Basic data structure warm-up before a harder problem
How to prepare
Build a short pattern list for medium problems
What they look for
Walmart doesn't publish its software engineer interview steps, so this plan follows recent candidate reports and guides. Most describe a first coding screen, often with Karat (an outside interviewing company) or a HackerRank test, then interviews covering medium data structures and algorithms problems, your past projects, system design, and behavioral questions with the hiring manager. The shape changes by team and country, and round lengths aren't confirmed.
They reward
- Talking through your reasoning as you solve
- Personal ownership of past project decisions
- Practical trade-offs for retail-scale systems
- Specific, honest stories with results
What to avoid
- Do not start coding before you check input limits and edge cases.
- Do not go quiet when you get stuck. Say what you will try next.
- Do not say "we" for every decision. Say what you did.
- Do not skip testing your code by hand once it is written.
- Do not name technologies without saying why you picked each one.
How sure we are
Worth redoing if you hear something from the recruiter that contradicts this.
Attempts
Every round you’ve done for this job, newest first.
First coding screen, Technical coding and project deep dive, System design or low-level design, and Behavioral and hiring manager round have no attempts yet.