Walmart Labs Interview Question Bank
Walmart's engineering loop runs through Karat / HackerRank phone screens followed by a three-to-four round virtual or in-person onsite covering coding, system design, behavioral, and an extended Team Fit phase. Coding bars are moderate but heavily weighted toward Java / Spring Boot fluency, and the system-design slot leans toward retail and logistics prompts (membership, delivery, ticketing, sensor ingestion). The Team Fit phase that follows technical approval is unusually long and team-shopping in nature, and is responsible for a meaningful share of loop attrition.
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Maximum Non-Adjacent House RobberyWeighted Best Meeting PointCount Months Whose First Day Is SundayLongest Even-Length WordRange ModuleMinimum Meeting Rooms RequiredMinimum Stress Path in an Undirected Weighted GraphMerge Strings AlternatelyFind All Valid Weekly Work SchedulesShortest Complete Talent Team Starting at Each IndexMinimum Cost to Build k-Capable ML Model SetsSQL Live Coding: Last-Mile Business Queries (Aggregations, Joins, Windows, Dates, Optimization)Insert Spaces to Highlight the Longest Palindromic Prefix/Suffix MatchFind the First Occurrence Index in a Sorted Array with DuplicatesAI-Assisted Backend Debugging (Spring Boot)AI-Assisted Frontend Debugging (React)Algorithm Question (unspecified)Meeting Schedule / Meeting Rooms (Hackerrank)Remove M Elements to Minimize Unique IDs in an Array3Sum (No Duplicate Triplets Assumed)Two Sum Variant: Lexicographically Smallest Pair in an Unsorted ArrayOOD: Implement Classes Based on a Given Shape InterfaceCoin Change - Count Number of Ways (DP variant)Variant of Parentheses MatchingPoisonous Plants (Monotonic Stack)Validate NonogramValidate SudokuCourse OverlapFind the First Unique Character in a StringCheck Output Correctness in Code