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Updated weekly · Last refresh Oct 17

Annapurna Labs (U.S.) Software Engineer Interview Questions

The questions to prepare for a Annapurna Labs (U.S.) Software Engineer interview. Questions from real interview reports rank first. Updated daily.

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1
CodingStart here. 21 questions · ~218 min
Detect Linked List LoopMedium
Practice

Detect a linked-list loop using Floyd's tortoise-and-hare algorithm with constant extra space.

Data Structurescycle detectionAlgorithmsAnnapurna Labs (U.S.)
LRU Cache (Best Way)Hard
Practice

Implement an O(1) LRU cache using a hash map and doubly linked list.

Hash TablesLinked ListscachingAnnapurna Labs (U.S.)
Count Set Bits EfficientlyMedium
Practice

Count all 1 bits across a block of bytes using bit manipulation.

Bit ManipulationMathArraysAnnapurna Labs (U.S.)
Reverse Linked List ApproachMedium
Practice

Reverse a singly linked list in-place by rewiring its next pointers with O(n) time and O(1) extra space.

Recursioncoding challengeLinked ListsAnnapurna Labs (U.S.)
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2
Execution19 questions · ~198 min
Structure a STAR Execution StoryEasy

Explain how to deliver a clear STAR story that highlights your personal ownership and execution impact.

Trade-offsSuccess CriteriaScope ManagementAnnapurna Labs (U.S.)
Disagreeing on Technical DirectionEasy

Explain how you handled a disagreement over technical direction while balancing delivery, relationships, and business outcomes.

Trade-offsRoadmappingRisk AssessmentAnnapurna Labs (U.S.)
Learning New Tech Under DeadlineEasy

Describe how you learned an unfamiliar technology quickly enough to deliver a high-stakes engineering project without missing the deadline.

Launch PlanningRisk AssessmentScope ManagementAnnapurna Labs (U.S.)
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3
Behavioral & Leadership5 questions · ~52 min
Solve an Unfamiliar Technical ProblemMedium

Evaluates problem-solving process, learning, and execution when facing ambiguity.

Problem SolvingAnnapurna Labs (U.S.)
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