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Esper Interview Questions

The questions to prepare for Esper interviews, across all roles. Questions from real interview reports rank first. Updated weekly.

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1
CodingStart here. 13 questions · ~124 min
Linked List ReversalEasy
Practice

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

RecursionLinked ListsArraysEsper
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2
Execution11 questions · ~105 min
Escalate and Contain Critical BugEasy

Describe how you handled a critical bug by assessing risk, aligning stakeholders, defining severity, and driving containment to resolution.

Success CriteriaRisk AssessmentQualityEsper
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3
Strategy4 questions · ~38 min
Applying Sales MethodologiesMedium

Tests your structured approach to pipeline, discovery, and closing.

Competitive AnalysisGo-to-MarketGrowth StrategyEsper
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4
Product Sense6 questions · ~57 min
Motivation for SalesEasy

Tests drive, alignment with sales work, and your personal reasons for succeeding.

User NeedsValue PropositionEsper
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5
Security & Infrastructure4 questions · ~38 min
Ensure Reliability and PerformanceMedium

Tests operational thinking around reliability, monitoring, and performance engineering.

InfrastructureQualityEsper
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6
Behavioral & Leadership6 questions · ~57 min
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7
More topics6 questions · ~57 min
Design Real-Time Sensor Event PipelineHard

Design a real-time pipeline for sensor events that transforms data and feeds a UI with low latency.

Stream ProcessingOrchestrationDependenciesEsper
Design for Low Network ConditionsMedium

Evaluates your ability to design resilient client behavior under poor connectivity.

Esper
Sell Me This PenMedium

Tests persuasion, discovery, and messaging under a live sales prompt.

persuasionEsper
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Monthly Sales Trends by CategoryMedium
Practice
Practice drill

Aggregate monthly sales by product category and use LAG to calculate month-over-month changes.

InfrastructureToolsData WranglingTotal Wine & MoreInc.Benjamin Moore
Resolve Conflicting Customer AttributesMedium
Practice
Practice drill

Use joins, CTEs, and row ranking to resolve conflicting customer profile values across ACME House systems.

JoinsData WranglingQualityRamsey SolutionsACME House
Clean Inconsistent Expense EntriesHard
Practice
Practice drill

Clean inconsistent expense records with CTEs, joins, CASE logic, and aggregation to summarize valid spend by department.

Data WranglingAggregationsQualityUniversity of Colorado Denver
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.