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Updated weekly · Last refresh Aug 30

Felix Software Engineer Interview Questions

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

33questions
~5htotal time
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1
CodingStart here. 18 questions · ~166 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 TablesArraysStringsFelix
Linked List ReversalEasy
Practice

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

RecursionLinked ListsArraysFelix
Optimize a Slow AlgorithmHard

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

Dynamic ProgrammingSortingGreedyFelix
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2
Execution8 questions · ~74 min
Prioritize Across Multiple ProjectsEasy

Explain how you prioritize work across multiple operational projects with competing deadlines, impact, and stakeholder pressure.

RoadmappingScope ManagementPrioritizationFelix
Handling Critical Project FeedbackEasy

Explain how you respond to direct feedback or criticism while preserving relationships and keeping a finance project on track.

Trade-offsSuccess CriteriaRisk AssessmentFelix
Handle Conflict Within Your TeamEasy

Explain how you handle team conflict while keeping delivery on track and maintaining trust across stakeholders.

Trade-offsRisk AssessmentScope ManagementFelix
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3
Pipelines4 questions · ~37 min
Cloud Platform Experience for PipelinesMedium

Describe practical experience building pipelines on AWS, including orchestration, security, and data quality.

InfrastructureETLData ModelingFelix
Efficient Data ProcessingMedium

Tests ability to choose efficient processing approaches and reason about performance constraints.

ETLBatch ProcessingData ModelingFelix
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4
Behavioral & Leadership3 questions · ~28 min
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The finish line: interview-readyComplete all 33 questions to finish this plan.