Top 31
Prep plan
Updated weekly · Last refresh Aug 30

Dave Software Engineer Interview Questions

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

31questions
~4htotal time
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1
CodingStart here. 10 questions · ~86 min
Longest Subarray With Target SumMedium
Practice
Recently asked

Use prefix sums and a hash table to find the longest continuous subarray with a given sum in O(n) time.

Hash TablesArraysSearchingDave
Transaction Stream ParsingMedium
Recently asked

Tests your ability to design robust parsing and validation logic for financial data and deduplication.

Stream Processingfrequency countdata integrityDave
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2
Execution4 questions · ~34 min
Distributed Ledger and Double-Spend PreventionHard
Recently asked

Tests your ability to reason about distributed consistency, idempotency, and preventing double-spend in financial systems.

Trade-offsdistributed systemsdata integrityDave
Scalable Multi-Channel NotificationsHard
Recently asked

Tests your ability to design a reliable, scalable messaging system with delivery guarantees and throughput considerations.

Launch Planningdesign systemscalabilityDave
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3
Behavioral & Leadership13 questions · ~112 min
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4
More topics4 questions · ~34 min
ExtraCash Backend ArchitectureHard
Recently asked

Tests your ability to design backend systems for correctness, low latency, and risk-aware financial workflows.

Decision MakingRisk AssessmentDave
Ledger Daily Balance SQLMedium

Assesses SQL skills for time-based aggregation and end-of-day balance computation.

ledgertransactionsDave
Break Down Component DesignHard

Assesses system thinking and ability to translate requirements into component-level design.

system architectureDave
SQL Self Join or Window FunctionMedium

Evaluates your ability to choose and implement SQL patterns using joins or window functions.

Window FunctionsDave

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
The finish line: interview-readyComplete all 31 questions plus 3 hands-on drills to finish this plan.