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Prep plan
Updated weekly · Last refresh Oct 17

Wise Software Engineer Interview Questions

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

50questions
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1
CodingStart here. 17 questions · ~169 min
Implement Currency Exchange InterfaceHard
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Use a weighted graph and BFS to convert amounts across direct and indirect currency exchange rates.

currency conversionbfsData StructuresWise
Hackerrank Data Structures QuestionMedium
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Implement a command-driven queue with two stacks and explain the data structure and complexity choices.

CodingData StructuresAlgorithmsWise
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2
SQL & Data Manipulation6 questions + 2 drills · ~80 min
3
System Design15 questions · ~149 min
Crowdfunding System DesignHard
Recently asked

Design an ML system that helps users discover relevant crowdfunding projects while handling ranking, trust, freshness, and scale.

ML Rankingsystem designdesignWise
Circuit Breaker Failure CountingMedium
Recently asked

Assesses understanding of circuit breaker mechanics and time-window failure tracking.

system designWise
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4
Execution5 questions · ~50 min
Product Sense: Observability MigrationMedium
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Tests your product thinking and ability to evaluate technical tradeoffs for observability at Wise.

migrationWise
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5
Behavioral & Leadership5 questions · ~50 min
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6
More topics2 questions · ~20 min
Process vs ThreadHard
Recently asked

Explain when process isolation is preferable to threads, including security boundaries, performance, communication, and failure trade-offs.

os internalsprocessesconcurrencyWise
End-to-End Payment FlowHard
Recently asked

Tests your ability to design reliable distributed payment flows with eventual consistency across services.

Data QualityETLOrchestrationWise
The finish line: interview-readyComplete all 50 questions plus 2 hands-on drills to finish this plan.