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Sumitomo mitsui financial group Software Engineer Interview Questions

The questions to prepare for a Sumitomo mitsui financial group Software Engineer interview. Questions from real interview reports rank first. Updated daily.

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1
CodingStart here. 17 questions · ~174 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 TablesArraysStringsSumitomo mitsui financial group
Subset Check for IntegersEasy
Practice

Determine whether every distinct integer in one SMBC input set appears in another using a hash set.

Sumitomo mitsui financial group
Linked List Reverse or CycleEasy
Practice

Detect whether a People workflow's linked sequence contains a cycle using Floyd's fast and slow pointers.

Basic AlgorithmsLinked ListsloopsSumitomo mitsui financial group
Dependency Injection in CodeEasy

Explain how dependency injection reduces coupling and improves testability in object-oriented code.

RecursionHash TablesArraysSumitomo mitsui financial group
Sorting Algorithm Complexity ComparisonEasy

Explain and compare the time and space complexities of common sorting algorithms and when each is appropriate.

MathArraysSortingSumitomo mitsui financial group
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2
Behavioral & Leadership11 questions · ~113 min
Debugging an Undocumented Legacy SystemMedium

Tests ownership and problem-solving under ambiguity in a poorly documented legacy system, including how the candidate leaves lasting improvements behind.

legacy systemsDebuggingdocumentationSumitomo mitsui financial group
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3
More topics2 questions · ~20 min
Object-Oriented Design for FinanceMedium

Tests OOP fundamentals and your ability to apply them to maintainable systems in financial services.

financial datatechnical experienceoopSumitomo mitsui financial group
Async vs Sync and Thread SafetyMedium

Tests concurrency fundamentals and your ability to prevent race conditions and data corruption.

thread safetybasicsconcurrencySumitomo mitsui financial group

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