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Updated weekly · Last refresh Sep 20

Okx Mobile Engineer Interview Questions

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

50questions
~8htotal time
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1
CodingStart here. 21 questions · ~192 min
Kotlin and Android FundamentalsHard

Assesses Kotlin and Android fundamentals plus problem-solving during live coding.

memory managementsystem designandroidOkx
Memory Leaks and iOS ArchitectureMedium

Tests debugging approach for memory leaks and understanding of iOS architecture.

memory leakOkx
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2
Security & Infrastructure3 questions · ~27 min
SSL Pinning ImplementationMedium

Tests your ability to apply transport security techniques in a mobile client.

SecurityOkx
Secure Local Storage for SecretsHard

Tests your security engineering skills for protecting secrets on-device.

SecurityOkx
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3
Technical Fundamentals5 questions · ~46 min
Swift Optionals and Null SafetyMedium

Tests your understanding of Swift language features and how null safety is enforced.

swifttechnical experienceOkx
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4
Software Architecture3 questions · ~27 min
MVVM or Clean Architecture for TestabilityMedium

Tests your ability to design maintainable app structure with clear boundaries and test strategy.

abstractionTestingarchitectureOkx
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5
Behavioral & Leadership15 questions · ~137 min
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6
More topics3 questions · ~27 min
Offline-First Secure Mobile WalletHard

Tests your ability to design secure offline behavior and reliable sync for blockchain-backed wallets.

synchronizationoffline-firstSecurityOkx
Hunting for Unused ResourcesMedium

Evaluates practical skills for identifying and removing unused assets and dependencies.

resource managementoptimizationOkx
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The finish line: interview-readyComplete all 50 questions to finish this plan.