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Updated weekly · Last refresh Aug 30

Venmo Software Engineer Interview Questions

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

43questions
~7htotal time
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1
CodingStart here. 15 questions · ~136 min
Linked List ReversalEasy
Practice

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

RecursionLinked ListsArraysVenmo
Check AnagramsEasy
Practice

Determine whether two Venmo payment notes are anagrams using character frequency counting in linear time.

Hash TablesStringsSortingVenmo
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2
Security & Infrastructure3 questions · ~27 min
Design Secure User AuthenticationMedium

Design a secure authentication flow with strong session protection, abuse detection, and clear failure handling.

InfrastructureToolsQualityVenmo
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3
System Design3 questions · ~27 min
Venmo-Scale Payment SystemHard

Tests distributed systems design for high throughput, reliability, and payment-specific concerns.

Feature StoreModel ServingRecommendation SystemsVenmo
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4
Behavioral & Leadership17 questions · ~154 min
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5
More topics5 questions · ~45 min
SQL vs NoSQL Trade-offsEasy

Explain SQL vs NoSQL trade-offs, including schema design, consistency, scaling, and query flexibility.

JoinsData WranglingAggregationsVenmo
Estimating Timelines and DeliverablesMedium

Tests planning, risk management, and ability to produce realistic estimates.

Trade-offsRoadmappingRisk AssessmentVenmo
Microservices ArchitectureHard

Tests system decomposition, service boundaries, and operational concerns in distributed systems.

InfrastructureOrchestrationDependenciesVenmo
API Performance OptimizationMedium

Tests performance thinking across latency, throughput, caching, and backend bottlenecks.

InfrastructureToolsQualityVenmo
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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
Reconcile Conflicting Invoice TotalsMedium
Practice
Practice drill

Reconcile billing and ERP invoice totals using joins, a CTE for latest snapshots, and CASE-based discrepancy classification.

JoinsData WranglingQualityLiterati
The finish line: interview-readyComplete all 43 questions plus 3 hands-on drills to finish this plan.