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Updated weekly · Last refresh Oct 17

Coalition Software Engineer Interview Questions

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

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1
CodingStart here. 22 questions · ~233 min
Longest Contiguous Subarray ProblemHard
Practice

Find the longest contiguous run of non-negative primes that are even or happy using sliding windows and 64-bit primality testing.

Coalition
Merge Two Sorted ArraysEasy
Practice

Merge two sorted arrays into one sorted array using a two-pointer linear scan.

ArraysSortingTwo PointersCoalition
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2
System Design4 questions · ~42 min
System Design: Methods for a TaskHard

Collaboratively design practical ML methods for an unspecified task, clarifying requirements, scale, evaluation, and operational risks.

iterative reasoningcollaborationdesignCoalition
System Design: Implement Part of AmazonHard

Evaluates system design thinking for building a large-scale component.

system designCoalition
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3
Execution4 questions · ~42 min
Best Practices During Startup ChangesHard

Explain how to maintain delivery, alignment, and risk control as a startup changes direction, structure, or priorities.

best practicescontingency planningcross-functional executionCoalition
Salary ExpectationsEasy

State your salary expectations for a Data Analyst role and explain how you would anchor them to scope and market data.

Trade-offsbudget controlRisk AssessmentCoalition
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4
Behavioral & Leadership18 questions · ~190 min
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5
More topics2 questions · ~21 min
Underwriting Tech E&O RisksMedium

Evaluates understanding of technical insurance risk and how you would assess coverage decisions.

Risk ManagementCoalition
Design a Microservices ArchitectureHard

Tests architecture thinking for decomposing services and planning communication, data, and operations.

InfrastructureOrchestrationDependenciesCoalition
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