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B Lab Global Interview Questions

The questions to prepare for B Lab Global interviews, across all roles. Questions from real interview reports rank first. Updated daily.

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1
CodingStart here. 5 questions · ~52 min
2
SQL & Data Manipulation5 questions · ~52 min
Compare Weekly User Activity TrendsMedium
Practice

Aggregate user activity by week, then use LAG to compare sessions and watch time versus the prior active week.

Window FunctionsLag/LeadDate FunctionsB Lab Global
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3
Strategy5 questions · ~52 min
Tell Me About YourselfEasy

Craft a concise self-introduction that highlights fit, communication style, and relevance for an Account Executive role.

brand cultureBusiness AcumenCompetitive AnalysisB Lab Global
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4
Pipelines4 questions · ~42 min
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityB Lab Global
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5
Execution5 questions · ~52 min
Plan a Phased Operations RolloutMedium

Plan a phased rollout for a new operational initiative with clear stages, success criteria, and risk controls.

Launch Planningphased rolloutsProject ManagementB Lab Global
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6
A/B Testing & Experimentation3 questions · ~31 min
Common Pitfalls in Experiment ResultsHard

Identify the main pitfalls that can distort A/B test interpretation and explain how to guard against them.

PeekingNovelty EffectSample Ratio MismatchB Lab Global
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7
More topics23 questions · ~241 min
Month-End Close ProcessHard

Explain a controlled month-end close, including reconciliations, accruals, variance analysis, review, and GAAP financial statement completion.

Accounting FundamentalsFinancial Statementsfinancial processesB Lab Global
Critical Metrics for Product LaunchMedium

Choose the most important launch metrics, balancing early signals, long-term outcomes, and a clear KPI hierarchy.

KPIsConversion RateLeading IndicatorsB Lab Global
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