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Updated weekly · Last refresh Oct 17

Mastercard Software Engineer Interview Questions

The questions to prepare for a Mastercard Software Engineer interview. Questions from real interview reports rank first. Updated daily.

50questions
~10htotal time
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1
CodingStart here. 10 questions · ~121 min
Minimize Trie NodesHard
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Recently asked

Use memoized state search to minimize trie nodes after independently permuting up to 16 strings.

combinatoricsData StructuresAlgorithmsMastercard
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2
System Design10 questions · ~121 min
Lift DesignHard

Design a safe single-user elevator controller, explaining state, requests, movement, doors, timing, and when ML is unnecessary.

latencydesignml inferenceMastercard
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3
SQL & Data Manipulation10 questions · ~121 min
Regression Testing and ReportsMedium
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Compare the two latest regression runs and identify tests that changed from passing to failing.

JoinsTestingMastercard
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4
Technical Fundamentals4 questions · ~48 min
Thread Safety in JavaHard
Recently asked

Tests how Java synchronization, volatile, atomic types, locks, concurrent collections, and immutability prevent races and visibility errors.

javathread safetyJVM InternalsMastercard
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5
Security & Infrastructure10 questions · ~121 min
Security in Angular FrameworkMedium
Recently asked

Assesses your understanding of common web security risks and secure practices in Angular applications.

SecurityMastercard
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6
Behavioral & Leadership3 questions · ~36 min
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7
More topics3 questions · ~36 min
Project Walkthrough With APIsMedium
Recently asked

Assesses your ability to explain system behavior, API design, and robust error handling.

project presentationMastercard
When Is Development DoneMedium
Recently asked

Evaluates your definition of done, including testing, review, and quality gates.

Mastercard
HTTP Request HandlingMedium
Recently asked

Tests your ability to implement correct and robust HTTP client logic.

Mastercard
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