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Institute for Defense Analyses Software Engineer Interview Questions

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

26questions
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1
CodingStart here. 6 questions · ~60 min
Maximum Subarray SumEasy
Practice

Compute the largest sum of any contiguous subarray using Kadane's algorithm in O(n) time.

Dynamic ProgrammingArraysGreedyInstitute for Defense Analyses
Linked List ReversalEasy
Practice

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

RecursionLinked ListsArraysInstitute for Defense Analyses
Implement Binary Search AlgorithmEasy
Practice

Write a binary search function to find a target value in a sorted array.

SearchingInstitute for Defense Analyses
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2
Execution6 questions · ~60 min
Scalable and Maintainable Solution ExecutionEasy

Explain how you plan for scalability and maintainability up front, including trade-offs, success criteria, and risk management.

InfrastructureTrade-offsRisk AssessmentInstitute for Defense Analyses
Design an API Under ConstraintsMedium

Design an API by balancing usability, performance, versioning, and operational risk under real product constraints.

Trade-offsRisk AssessmentScope ManagementInstitute for Defense Analyses
Choose Monolith or MicroservicesMedium

Evaluate the execution trade-offs between monoliths and microservices and explain how you would choose the right approach.

Trade-offsRisk AssessmentScope ManagementInstitute for Defense Analyses
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3
Behavioral & Leadership13 questions · ~131 min
Responding to Tough Technical FeedbackEasy

Tests how you handle criticism with ownership, self-awareness, and concrete follow-through rather than defensiveness.

Conflict ResolutionStakeholder ManagementCommunicationInstitute for Defense Analyses
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4
More topics1 question · ~10 min
Real-Time Data Processing DesignHard

Tests architecture skills for low-latency pipelines, reliability, and scalability in defense analytics contexts.

InfrastructureStream ProcessingOrchestrationInstitute for Defense Analyses
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