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146+ Visa questions

Visa interview questions and how to prepare

The questions candidates report from Visa interviews, sorted by how often they come up, with difficulty and topics, plus original practice written in Visa's interview style.

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ZorixOS tracks 146 community-reported Visa interview questions, drawn from an open-source dataset of real interview reports and sorted by how frequently each one comes up. Every question links to its source. Alongside them are 78 original ZorixOS practice questions written in Visa's known interview style (not claimed as asked at Visa), so you can rehearse the real format. Practice any of them out loud in a free AI mock interview tuned to Visa.

Updated July 2026

Visa interview questions candidates report

Community-reported from real Visa interviews (open-source dataset), most-asked first. Showing 60 of 146. Each links to its source.

  1. Beautiful Arrangement
    ArrayDynamic ProgrammingBacktrackingBit Manipulation
    Medium100% asked
  2. Length of Longest V-Shaped Diagonal Segment
    ArrayDynamic ProgrammingMemoizationMatrix
    Hard100% asked
  3. Number of Divisible Triplet Sums
    ArrayHash Table
    Medium100% asked
  4. Text Justification
    ArrayStringSimulation
    Hard100% asked
  5. Rotating the Box
    ArrayTwo PointersMatrix
    Medium97% asked
  6. Two Sum
    ArrayHash Table
    Easy96% asked
  7. Count Palindromic Subsequences
    StringDynamic Programming
    Hard95% asked
  8. Exclusive Time of Functions
    ArrayStack
    Medium95% asked
  9. Split the Array
    ArrayHash TableCounting
    Easy94% asked
  10. Minimum Operations to Write the Letter Y on a Grid
    ArrayHash TableMatrixCounting
    Medium94% asked
  11. 3Sum
    ArrayTwo PointersSorting
    Medium93% asked
  12. Longest Substring Without Repeating Characters
    Hash TableStringSliding Window
    Medium93% asked
  13. Find the Length of the Longest Common Prefix
    ArrayHash TableStringTrie
    Medium90% asked
  14. Minimum Number of Swaps to Make the String Balanced
    Two PointersStringStackGreedy
    Medium90% asked
  15. Best Time to Buy and Sell Stock
    ArrayDynamic Programming
    Easy87% asked
  16. LRU Cache
    Hash TableLinked ListDesignDoubly-Linked List
    Medium87% asked
  17. Block Placement Queries
    ArrayBinary SearchBinary Indexed TreeSegment Tree
    Hard84% asked
  18. Create Target Array in the Given Order
    ArraySimulation
    Easy83% asked
  19. Longest Palindromic Substring
    Two PointersStringDynamic Programming
    Medium82% asked
  20. Maximum OR
    ArrayGreedyBit ManipulationPrefix Sum
    Medium82% asked
  21. Minimize Maximum of Array
    ArrayBinary SearchDynamic ProgrammingGreedy
    Medium82% asked
  22. Number of Black Blocks
    ArrayHash TableEnumeration
    Medium82% asked
  23. Divide Players Into Teams of Equal Skill
    ArrayHash TableTwo PointersSorting
    Medium82% asked
  24. Number of Perfect Pairs
    ArrayMathTwo PointersSorting
    Medium82% asked
  25. Number of Adjacent Elements With the Same Color
    Array
    Medium80% asked
  26. Simplify Path
    StringStack
    Medium80% asked
  27. Count Nodes With the Highest Score
    ArrayTreeDepth-First SearchBinary Tree
    Medium78% asked
  28. Divisor Game
    MathDynamic ProgrammingBrainteaserGame Theory
    Easy78% asked
  29. Earliest Possible Day of Full Bloom
    ArrayGreedySorting
    Hard78% asked
  30. Group Anagrams
    ArrayHash TableStringSorting
    Medium78% asked
  31. Match Alphanumerical Pattern in Matrix I
    ArrayHash TableStringMatrix
    Medium78% asked
  32. Maximum Number of Events That Can Be Attended
    ArrayGreedySortingHeap (Priority Queue)
    Medium78% asked
  33. Odd String Difference
    ArrayHash TableString
    Easy78% asked
  34. Two Furthest Houses With Different Colors
    ArrayGreedy
    Easy78% asked
  35. Merge Intervals
    ArraySorting
    Medium76% asked
  36. Trapping Rain Water
    ArrayTwo PointersDynamic ProgrammingStack
    Hard75% asked
  37. Minimum Cost Path with Teleportations
    ArrayDynamic ProgrammingMatrix
    Hard74% asked
  38. Sell Diminishing-Valued Colored Balls
    ArrayMathBinary SearchGreedy
    Medium74% asked
  39. Largest Rectangle in Histogram
    ArrayStackMonotonic Stack
    Hard73% asked
  40. Maximum Subarray
    ArrayDivide and ConquerDynamic Programming
    Medium73% asked
  41. Maximum Sum of Alternating Subsequence With Distance at Least K
    ArrayDynamic ProgrammingSegment Tree
    Hard73% asked
  42. Valid Parentheses
    StringStack
    Easy71% asked
  43. Number of Islands
    ArrayDepth-First SearchBreadth-First SearchUnion-Find
    Medium70% asked
  44. Longest Common Prefix
    ArrayStringTrie
    Easy68% asked
  45. Minimum Absolute Difference Between Elements With Constraint
    ArrayBinary SearchOrdered Set
    Medium68% asked
  46. Minimum Time Difference
    ArrayMathStringSorting
    Medium68% asked
  47. Count Ways To Build Good Strings
    Dynamic Programming
    Medium63% asked
  48. Longest Non-decreasing Subarray From Two Arrays
    ArrayDynamic Programming
    Medium63% asked
  49. Maximum Palindromes After Operations
    ArrayHash TableStringGreedy
    Medium63% asked
  50. Minimum Suffix Flips
    StringGreedy
    Medium63% asked
  51. Palindrome Partitioning
    StringDynamic ProgrammingBacktracking
    Medium63% asked
  52. Path With Minimum Effort
    ArrayBinary SearchDepth-First SearchBreadth-First Search
    Medium63% asked
  53. Reverse Linked List
    Linked ListRecursion
    Easy63% asked
  54. Spiral Matrix
    ArrayMatrixSimulation
    Medium63% asked
  55. Rotate Image
    ArrayMathMatrix
    Medium61% asked
  56. Walls and Gates
    ArrayBreadth-First SearchMatrix
    Medium61% asked
  57. Course Schedule
    Depth-First SearchBreadth-First SearchGraph TheoryTopological Sort
    Medium58% asked
  58. Gas Station
    ArrayGreedy
    Medium58% asked
  59. Grid Teleportation Traversal
    ArrayHash TableBreadth-First SearchMatrix
    Medium58% asked
  60. Happy Number
    Hash TableMathTwo Pointers
    Easy58% asked

These are the 60 most-reported of 146 tracked Visa questions. Create a free account to drill the full set with solutions and an AI interviewer.

Practice questions in Visa's style

Original ZorixOS questions written the way Visa interviews, so you rehearse the real format. Not claimed as asked at Visa.

  1. Imagine you're building a new feature for Visa Checkout, a system that handles millions of transactions daily. Describe how you would design a rate limiting system to prevent abuse while ensuring legitimate users have a seamless experience. Consider potential failure points and how to mitigate them.

    Software EngineerSystem DesignTests: Assesses the candidate's ability to design scalable and resilient distributed systems, considering trade-offs and potential failure scenarios.

  2. Visa's network processes a vast amount of payment data. If a specific transaction is failing intermittently for a subset of users in a particular region, how would you approach debugging this issue? What tools and methodologies would you employ to identify the root cause?

    Software EngineerDebuggingTests: Evaluates problem-solving skills, systematic debugging approach, and familiarity with network and system observability tools.

  3. Visa is investing in tokenization to enhance payment security. Explain how tokenization works at a high level and discuss potential performance implications of implementing this at Visa's scale. What are some engineering challenges you foresee?

    Software EngineerSystem DesignTests: Tests understanding of security concepts relevant to payments and ability to analyze system performance impacts at scale.

  4. Visa Direct allows for real-time push payments. If a developer reports a bug where some P2P transfers are experiencing a 5-10 second delay beyond the expected instant processing time, outline your steps to diagnose and resolve this, considering the distributed nature of such a service.

    Software EngineerDebuggingTests: Probes diagnostic skills in a real-time transaction processing context, focusing on latency issues in distributed systems.

  5. Consider the infrastructure supporting Visa's global transaction processing. Describe how you would design a highly available, fault-tolerant system for processing credit card authorizations. Focus on redundancy, failover mechanisms, and data consistency.

    Software EngineerSystem DesignTests: Measures ability to design critical, high-throughput, and highly available systems, emphasizing fault tolerance and data integrity.

  6. Visa's platform handles billions of transactions. Write a SQL query to identify merchants that have experienced a sudden, significant drop in transaction volume (more than 30% decrease) in the last week compared to the preceding four weeks. Assume you have a 'transactions' table with columns: transaction_id, merchant_id, amount, timestamp.

    Data ScientistSQLTests: Assesses SQL proficiency for data analysis and ability to define and identify anomalies in transactional data.

72+ more Visa-style questions are in the free library, each practiceable live with adaptive follow-ups and an honest scorecard. Start free.

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Visa Interview Questions (2026) | ZorixOS