Top 32
Prep plan
Updated weekly · Last refresh Oct 17

Thunes Software Engineer Interview Questions

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

32questions
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1
ExecutionStart here. 7 questions · ~56 min
Highly Available Real-Time WalletHard

Tests system design for availability and real-time processing in Thunes payment flows.

real-time paymentshigh availabilitysolution designThunes
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2
Behavioral & Leadership14 questions · ~113 min
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3
More topics11 questions · ~89 min
Build Idempotent Payment API PipelineEasy

Design an idempotent payment API and ETL pipeline that prevents duplicate charges during retries while publishing exactly-once payment events downstream.

InfrastructureIdempotencyQualityThunes
Explain ACID for Card TransactionsEasy

Explain ACID properties and why they protect financial transaction data in card and payments systems.

acid propertiesfinancial datadata integrityThunes
Designing APIs for ScalingHard

Assesses your system design approach for building scalable, reliable APIs in a B2B payments context.

apiscalingThunes
Golang Concurrency and RacesMedium

Tests understanding of Go concurrency primitives and race avoidance in production code.

goconcurrencyrace conditionsThunes
Encryption vs Hashing vs EncodingMedium

Tests correct understanding of cryptographic concepts and their intended purposes.

cryptographySecurityThunes
Clean Code and High Throughput in GoMedium

Tests ability to balance code quality and architecture with performance in Go services at Thunes.

code qualitygotechnical depthThunes
General System Design DepthMedium

Evaluates your ability to clarify requirements, make tradeoffs, and structure a robust design.

system designThunes
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