StealthCoder

Mastercard OA questions,
4 reported by real candidates.

Every Mastercard online assessment question candidates have reported, most recent October 2025. 3 of them are SQL.

Get StealthCoderRuns invisibly during the live Mastercard OA. Under 2s to a working solution.

October 2025 (1)

Container With Most Water

July 2024 (3)

SQL
Brands With Continuously Increasing Sales
SQL
Status Changes in Log Data
SQL
Left and Right Join Results
⏵ Beyond the OA

Mastercard also has 12 LeetCode problems reported from its interviews, with the topics it leans on most.

⏵ The honest play

You've seen Mastercard's questions. Yours might be the one not on the list.

StealthCoder runs invisibly during the live screen share. It reads the problem on screen and surfaces a working solution in under 2 seconds. Works on HackerRank, CodeSignal, CoderPad, and Karat.

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Questions reported by candidates from real Online Assessments. Sourced from a publicly-available candidate-aggregated repository. Not affiliated with Mastercard.

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