Top 39
Prep plan
Updated weekly · Last refresh Oct 17

CACI Solutions Architect Interview Questions

The questions to prepare for a CACI Solutions Architect interview. Questions from real interview reports rank first. Updated daily.

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1
CodingStart here. 8 questions · ~76 min
First Non-Repeating CharacterEasy
Practice

Find the first non-repeating character in a string using frequency counting and a second pass in O(n) time.

Hash TablesStringsSearchingCACI
Reverse a Linked ListEasy
Practice

Reverse a singly linked list in place using pointer manipulation.

RecursionLinked ListsCACI
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2
System Design13 questions · ~124 min
Design Training Performance Optimization SystemMedium

Design an ML training optimization system that improves throughput and cost while preserving model quality and training serving alignment.

InfrastructureFeature StoreModel ServingCACI
Design Cold Start RecommendationsHard

Design a recommendation system strategy for new users and new items when interaction history is sparse or missing.

Cold StartFeature StoreRecommendation SystemsCACI
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3
Pipelines3 questions · ~29 min
Real-Time Dashboard Pipeline DesignHard

Approach for building near-real-time dashboard pipelines with streaming, orchestration, and data quality controls.

Stream ProcessingSchedulingDependenciesCACI
Orchestration for Dependent PipelinesHard

Tests your ability to build robust pipeline workflows that handle failures safely.

SchedulingOrchestrationDependenciesCACI
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4
Behavioral & Leadership11 questions · ~105 min
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5
More topics4 questions · ~38 min
Enterprise Architecture and MBSEMedium

Assesses your ability to apply enterprise architecture and MBSE concepts to defense and government modernization work.

enterprise architectureCACI
Improving User ExperienceMedium

Tests product sense, diagnostics, and prioritization to improve outcomes.

User NeedsPain PointsUse CasesCACI
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