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We Are Apt Interview Questions

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

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1
PipelinesStart here. 5 questions · ~42 min
Cleaning Missing Values in PipelinesEasy

Approach for handling missing values in a pipeline with data quality checks and repeatable transformations.

Data WranglingETLQualityWe Are Apt
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2
Coding15 questions · ~125 min
Dynamic Data Structures ComplexityHard

Tests problem-solving skills with dynamic data structures and time complexity reasoning.

Problem SolvingWe Are Apt
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3
Security & Infrastructure5 questions · ~42 min
Process Synchronization in MultithreadingMedium

Evaluates ability to design correct synchronization to avoid race conditions and deadlocks.

concurrencyWe Are Apt
Cache Coherence and PerformanceMedium

Tests understanding of cache coherence and how it affects performance in concurrent systems.

performanceWe Are Apt
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4
Machine Learning3 questions · ~25 min
Data Structures and ProjectsMedium

Assesses your practical experience with data structures and algorithms through real project work.

Data StructuresAlgorithmsWe Are Apt
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5
Behavioral & Leadership5 questions · ~42 min
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6
More topics3 questions · ~25 min
Expected Flips for Two HeadsMedium

Compute the expected waiting time to see two consecutive heads when flipping a fair coin.

DistributionsExpected ValueConditional ProbabilityWe Are Apt
Portfolio Gamma Underlying MovesMedium

Assesses understanding of gamma behavior and its impact on straddle P&L.

We Are Apt
Partitioning and Indexing for QueriesMedium

Assesses your approach to physical data design for faster, more scalable queries.

indexingWe Are Apt

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Pivot Lucid Campaign Performance by MonthMedium
Practice
Practice drill

Use joins, a CTE, CASE expressions, and monthly pivoting to compare Lucid campaign performance across channels.

pivot tablesnull handlingData WranglingLucid Motors
Unify Campaign Performance SourcesMedium
Practice
Practice drill

Use CTEs, joins, aggregations, and CASE logic to combine Salesforce, Marketo, and Google Analytics into one monthly campaign report.

Data WranglingperformanceReconciliationPalo Alto Networks
Supplier Cost Variance Trend AnalysisHard
Practice
Practice drill

Use joins, a CTE, and date functions to find monthly supplier cost variance and on-time delivery trends.

financial dataData WranglingperformanceBae Systems Usa
The finish line: interview-readyComplete all 36 questions plus 3 hands-on drills to finish this plan.