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Updated weekly · Last refresh Sep 20

Flatiron School Software Engineer Interview Questions

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

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1
CodingStart here. 9 questions · ~79 min
Reverse a String in PythonEasy
Practice

Reverse a string in Python using character traversal and return the reversed result.

StringsfunctionspythonFlatiron School
Optimize a Slow AlgorithmHard

Explain how to diagnose and optimize a slow algorithm by profiling bottlenecks, reducing complexity, and validating improvements.

Dynamic ProgrammingSortingGreedyFlatiron School
Handling Basic Coding QuestionsEasy

Assesses your fundamentals and problem-solving approach on entry-level coding tasks.

ProgrammingFlatiron School
REST vs GraphQL DifferencesMedium

Tests your API design knowledge and ability to choose the right approach for requirements.

Hash TablesArraysStringsFlatiron School
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2
Execution5 questions · ~44 min
Design Feature for Existing ApplicationMedium

Explain how you would design a new feature in an existing application while managing scope, trade-offs, and success criteria.

Trade-offsRoadmappingScope ManagementFlatiron School
Managing a Failed Project PivotHard

Describe how you handled a project that failed or required a major pivot, including stakeholder alignment, trade-offs, and risk management.

Rollback PlanTrade-offsRisk AssessmentFlatiron School
Measuring Solution EffectivenessMedium

Tests your ability to define success metrics and validate outcomes with users.

Trade-offsSuccess CriteriaRisk AssessmentFlatiron School
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3
Behavioral & Leadership13 questions · ~114 min
Teaching OOP to a Junior EngineerEasy

Tests mentorship and technical communication through a concrete example of explaining OOP concepts clearly and driving understanding.

CommunicationOwnershipFlatiron School
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