CM TH Software Engineer Interview Questions

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

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CodingStart here. 6 questions · ~60 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 TablesArraysStrings

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Reverse a String in PythonEasy

Practice

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

Stringsfunctionspython

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Compare REST and SOAP APIsMedium

Explain the core differences between REST and SOAP, including message format, protocol style, and trade-offs.

Hash TablesStrings

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Execution3 questions · ~30 min

Design a Scalable ApplicationEasy

Explain how you would design a scalable application, including trade-offs, risks, stakeholder needs, and how you define success.

Trade-offsRisk AssessmentScope Management

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Improving Application PerformanceMedium

Tests your approach to diagnosing bottlenecks and improving performance in production systems.

Trade-offsSuccess CriteriaRisk Assessment

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Designing a RESTful APIMedium

Tests your ability to design clean, scalable API contracts and endpoints.

Trade-offsRoadmappingScope Management

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Behavioral & Leadership9 questions · ~90 min

Clarifying Conflicting Stakeholder RequirementsEasy

Tests stakeholder requirement gathering under ambiguity, with emphasis on communication, alignment, and turning conflicting input into clear requirements.

Stakeholder ManagementCommunicationOwnership

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