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Updated weekly · Last refresh Aug 30

Walmart Global Tech Software Engineer Interview Questions

The questions to prepare for a Walmart Global Tech Software Engineer interview. Questions from real interview reports rank first. Updated weekly.

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CodingStart here. 9 questions · ~90 min

Linked List ReversalEasy

Practice

Recently asked

Reverse a singly linked list in-place using iterative pointer manipulation.

RecursionLinked ListsArrays

Walmart Global Tech

First Non-Repeating CharacterEasy

Practice

Recently asked

Find the first non-repeating character in a string using frequency counting and a second pass in O(n) time.

Hash TablesStringsSearching

Walmart Global Tech

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SQL & Data Manipulation9 questions + 2 drills · ~110 min

SQL: Manager of ManagerMedium

Practice

Use self-joins to return each Walmart employee, their manager, and their manager's manager.

Joinssql

Walmart Global Tech

Second Highest Without AggregatesHard

Practice

Practice drill

Find the second highest salary in each department without using aggregate functions.

SubqueriesRankingSelf-Joins

Credit Genie

Devoteam

Cisco Restaurant + Bar

Running Total With Window FunctionsEasy

Practice

Practice drill

Calculate each user's running order total over time using a window function.

Window FunctionsDate FunctionsRunning Totals

Inspire11

Western Digital

Factual

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Pipelines4 questions · ~40 min

Batch vs Stream Processing Trade-offsMedium

Recently asked

Compare batch and stream processing across latency, complexity, cost, and data quality in a modern analytics pipeline.

InfrastructureStream ProcessingETL

Walmart Global Tech

Architecting Real-Time Data ProcessingHard

Recently asked

Tests your system design skills for low-latency pipelines, reliability, and scaling.

InfrastructureStream ProcessingOrchestration

Walmart Global Tech

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Execution9 questions · ~90 min

Optimizing a Slow Web AppMedium

Recently asked

Tests your performance troubleshooting workflow and ability to prioritize fixes using data.

Trade-offsSuccess CriteriaRisk Assessment

Walmart Global Tech

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Security & Infrastructure8 questions · ~80 min

RESTful APIs and CommunicationEasy

Recently asked

Tests your understanding of REST principles, request/response flow, and API communication basics.

InfrastructureToolsNetworking

Walmart Global Tech

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System Design9 questions · ~90 min

Scalable Cache DesignHard

Recently asked

Tests your ability to design production-grade caching with correctness and resilience under load.

Cold StartFeature StoreModel Serving

Walmart Global Tech

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