Meta
Social media and metaverse company behind Facebook, Instagram, and WhatsApp.
4 Rounds
~21 Days
Very Hard
The Interview Loop
Recruiter Screen (30 min)
Standard fit check, behavioral questions, and resume overview.
Technical Loop (3-4 Rounds)
Deep dive into domain knowledge, coding, and system design.
Interview Question Bank
Data Scientist
•
System Design
•
hard
We are evaluating a new machine learning model for the Facebook News Feed ranking. The offline AUC is significantly higher than the production model, but an online A/B test shows no change in user engagement. What could be causing this discrepancy?
#Model Evaluation
#Offline vs Online Metrics
#Ranking
Data Scientist
•
Technical
•
hard
Explain gradient boosting. How does XGBoost differ from a standard gradient boosting machine?
#Gradient Boosting
#XGBoost
Data Scientist
•
Technical
•
medium
How does a Random Forest work? What are its hyperparameters and how do you tune them?
#Random Forest
#Hyperparameter Tuning
Data Scientist
•
Technical
•
medium
What is regularization? Explain L1 vs L2 regularization and their effects.
#Regularization
#L1
#L2
Data Scientist
•
Technical
•
medium
How do you handle class imbalance in a classification problem?
#Imbalanced Data
#SMOTE
Difficulty Radar
Based on recent AI-sourced data.
Meet Your Interviewers
The "Standard" Interviewer
Senior EngineerFocuses on core competencies, system constraints, and clear communication.
SimulateUnwritten Rules
Think Out Loud
Always explain your thought process before writing code or drawing architecture.