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Updated weekly · Last refresh Oct 17

John Smith Agency Software Engineer Interview Questions

The questions to prepare for a John Smith Agency Software Engineer interview. Questions from real interview reports rank first. Updated daily.

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1
CodingStart here. 7 questions · ~77 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 TablesArraysStringsJohn Smith Agency
Linked List ReversalEasy
Practice

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

RecursionLinked ListsArraysJohn Smith Agency
Implement Binary SearchEasy
Practice

Implement binary search to find a target value in a sorted array in O(log n) time.

Recursionbinary searchArraysJohn Smith Agency
Dependency Injection PurposeMedium

Tests understanding of dependency injection benefits and how it improves design and testability.

RecursionHash TablesTreesJohn Smith Agency
How RESTful APIs WorkMedium

Tests understanding of REST concepts like resources, HTTP methods, and request-response behavior.

Hash TablesTreesGraphsJohn Smith Agency
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2
Behavioral & Leadership11 questions · ~120 min
Improving Team Git PracticesEasy

Tests ownership and communication through a concrete example of improving team collaboration with version control practices.

Stakeholder ManagementCommunicationOwnershipJohn Smith Agency
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3
More topics2 questions · ~22 min
Debugging Web Performance IssuesMedium

Tests systematic performance troubleshooting and use of profiling and metrics in a production web app.

Trade-offsRisk AssessmentScope ManagementJohn Smith Agency
Optimizing a Slow QueryMedium

Tests query analysis, indexing, and performance tuning strategies for insurance-related data workloads.

SubqueriesJoinsAggregationsJohn Smith Agency

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
The finish line: interview-readyComplete all 20 questions plus 3 hands-on drills to finish this plan.