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Updated weekly · Last refresh Oct 9
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Ciklum Backend Engineer Interview Questions

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

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1
Technical FundamentalsStart here. 4 questions · ~32 min
Describe CompletableFuture for Async OpsMedium

Assesses knowledge of asynchronous programming with CompletableFuture in Java.

javaCCiklum
Handle InterruptedException in ThreadsMedium

Evaluates thread interruption handling and robust shutdown practices.

CCiklum
Differentiate Optimistic vs Pessimistic LockingMedium

Tests concurrency control understanding with practical scenarios.

CCiklum
Explain Event Loop in Non Blocking EnvironmentsMedium

Evaluates understanding of event-driven programming and non-blocking I/O.

CCiklum
2
More topics4 questions · ~32 min
Maintain Performance and Reliability in BackendsMedium

Evaluates approach to performance, reliability, monitoring, and resilience.

performanceCCiklum
Design Fixed-Move vs Random-Move Game SystemMedium

Evaluates system design and fairness handling in a two-player interaction.

system architectureCCiklum
Explaining a Technical Concept ClearlyEasy

Tests communication, ownership, and stakeholder management when translating technical complexity into actionable business understanding.

Problem SolvingData Structurestechnical fundamentalsCCiklum
Code Quality and Clean Coding StandardsMedium

Assesses beliefs about maintainability, standards, and team collaboration within Ciklum context.

code qualityCCiklum

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