Top 33
Prep plan
Updated weekly · Last refresh Aug 30

Change Software Engineer Interview Questions

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

33questions
~5htotal time
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1
CodingStart here. 9 questions · ~83 min
Linked List ReversalEasy
Practice

Reverse a singly linked list in-place using iterative pointer manipulation.

RecursionLinked ListsArraysChange
Longest Unique Substring in EnoMedium
Practice

Use a sliding window and hash map to find the longest substring without repeated characters in a string.

Hash TablesStringsTwo PointersChange
Optimizing Sorting for Large DatasetsMedium

Explain how to choose and optimize sorting approaches for large datasets based on memory, data distribution, and stability requirements.

ArraysSortingGreedyChange
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2
Execution8 questions · ~74 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 ManagementChange
Improve System Performance and ReliabilityEasy

Explain how you would optimize a system for performance, reliability, and user experience while making clear trade-offs and defining success.

Trade-offsSuccess CriteriaRisk AssessmentChange
SQL vs NoSQL Trade-offsMedium

Tests your understanding of data modeling, consistency, scalability, and fit-for-purpose database selection.

Trade-offsScope ManagementChange
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3
Behavioral & Leadership14 questions · ~129 min
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4
More topics2 questions · ~18 min
System Design for ScaleHard

Assesses system design ability for throughput and concurrency constraints under load.

throughputconcurrencyChange
Designing a URL ShortenerHard

Evaluates system design skills for scalability, reliability, and performance.

system designChange
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