Dataford
Top 14
Prep plan
Updated weekly · Last refresh Aug 30

Meta IT Data Scientist Interview Questions

The questions to prepare for a Meta IT Data Scientist interview. Questions from real interview reports rank first. Updated weekly.

14questions
~2htotal time
Track your progressSign up free to work through all 14 questions and resume where you left off.
Start practicing free →
1
A/B Testing & ExperimentationStart here. 3 questions · ~27 min
When to Prefer Quasi-ExperimentsHard

Decide when randomization is infeasible or invalid and when a quasi-experiment is the better causal design.

ExperimentationCausal InferenceA/B TestingMeta IT
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 MismatchMeta IT
More A/B Testing & Experimentation questions with a free account
2
Behavioral & Leadership4 questions · ~35 min
More Behavioral & Leadership questions with a free account
3
More topics7 questions · ~62 min
7-Day Rolling Active UsersMedium
Practice

Compute daily active users and a 7-day rolling average using a CTE, distinct counts, and window functions.

Window FunctionsDate FunctionsRunning TotalsMeta IT
Diagnose Cross Campaign CTR DropMedium

Investigate a 15% CTR drop across multiple campaigns by decomposing performance and separating measurement issues from real demand changes.

Funnel AnalysisKPIDiagnosisMeta IT
Design a Machine Learning SystemHard

Assesses end-to-end system design for ML, including architecture, trade-offs, and risks.

Problem SolvingdesignMeta IT
Bayes and Confidence IntervalsHard

Assesses probabilistic reasoning and correct interpretation of uncertainty.

modelingMeta IT
Machine Learning Algorithms ChoiceMedium

Assesses model selection judgment and trade-offs among algorithms.

AlgorithmsMeta IT
Optimize CPU AllocationMedium

Evaluates systems thinking for performance, resource utilization, and throughput.

optimizationResource AllocationMeta IT
More questions with a free account

Sign up to see every question

Create a free account to unlock this list and practice real interview questions.

Get my prep plan
Hands-on SQL practiceWrite and run real queries in the editor. 2 drills · ~20 min
Customer Transaction Running TotalsMedium
Practice
Practice drill

Calculate each customer's cumulative transaction amount over time using a CTE and window function.

Window FunctionsDate FunctionsRunning TotalsFivetranMufg - Mitsubishi Ufj Financial GroupBank Of Tokyo-Mitsubishi UFJ
Rolling 7-Day System Error AverageHard
Practice
Practice drill

Calculate a rolling 7-day average of system error counts using window functions and date-based aggregation.

Window FunctionsDate FunctionsRunning TotalsAmazon RoboticsDatadogAgile Defense
The finish line: interview-readyComplete all 14 questions plus 2 hands-on drills to finish this plan.