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Updated weekly · Last refresh Oct 16

Andreessen Horowitz Software Engineer Interview Questions

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

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1
ExecutionStart here. 21 questions · ~199 min
Handle Complex Dashboard VisualizationMedium

Explain how you executed a complex data visualization project, balancing clarity, stakeholder demands, and measurable outcomes.

data visualizationtechnical proficiencydesign challengeAndreessen Horowitz
Discuss Weaknesses With OwnershipEasy

Explain how you talk about a real weakness, the impact it had, and the plan you use to improve it.

Trade-offsRisk AssessmentAndreessen Horowitz
Prioritize Competing Engineering DeadlinesEasy

Explain how you would prioritize work when several engineering deadlines conflict and stakeholders all want top priority.

Trade-offsRoadmappingScope ManagementAndreessen Horowitz
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2
Coding20 questions · ~190 min
Two Pointers on Arrays and StringsEasy

Explain how the two pointers technique works on arrays and strings, when to use it, and its common patterns.

ArraysStringsTwo PointersAndreessen Horowitz
Optimized Array Solution With Trade-offsMedium
Practice

Use a hash map to find two array values that sum to a target in O(n) time.

Trade-offsArraysArray ManipulationAndreessen Horowitz
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3
Behavioral & Leadership6 questions · ~57 min
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4
More topics3 questions · ~28 min
Scalable High-Concurrency BackendHard

Design a highly concurrent ML backend that preserves data integrity across ingestion, feature updates, and online model serving.

high-frequency requestsdistributed systemsapi gatewayAndreessen Horowitz
Secure Coding for Internal and Customer AppsMedium

Assesses your approach to secure development across internal and customer-facing software.

best practicesdeveloper toolsAndreessen Horowitz
Data Structures for Incident TrackingMedium

Evaluates your system design thinking for real-time incident tracking data flows.

Data Structuresincident responseAndreessen Horowitz
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