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Cesna Group Software Engineer Interview Questions

The questions to prepare for a Cesna Group Software Engineer interview. Questions from real interview reports rank first. Updated weekly.

24questions
~4htotal time
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1
CodingStart here. 6 questions · ~58 min
Two Sum with TargetEasy
Practice

Use a hash map to find two array elements that sum to a target in O(n) time.

Hash TablesArraysStringsCesna Group
Reverse a String in PythonEasy
Practice

Reverse a string in Python using character traversal and return the reversed result.

StringsfunctionspythonCesna Group
REST vs SOAP Web ServicesEasy

Compare REST and SOAP web services across architecture style, message format, transport, and common tradeoffs.

ArraysStringsCesna Group
Binary Search Implementation and ComplexityEasy

Explain how binary search works on a sorted array and why its time complexity is O(log n).

MathArraysSearchingCesna Group
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2
Execution4 questions · ~39 min
Handle a Critical System OutageHard

Tests incident response, prioritization, communication, and recovery planning.

Rollback PlanLaunch PlanningRisk AssessmentCesna Group
Optimize Slow Application PerformanceHard

Tests performance troubleshooting, profiling, and systematic optimization under constraints.

Trade-offsRisk AssessmentScope ManagementCesna Group
Code Quality and MaintainabilityMedium

Tests engineering practices like testing, reviews, standards, and refactoring discipline.

best practicescode qualitymaintainabilityCesna Group
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3
Behavioral & Leadership14 questions · ~135 min
Prioritizing Competing DeadlinesEasy

Tests prioritization under pressure, including trade-off judgment, stakeholder communication, and ownership of outcomes.

OwnershipDealing With AmbiguityPrioritizationCesna Group
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The finish line: interview-readyComplete all 24 questions to finish this plan.