Technical practice
How would you design a system that recommends a student's next question or topic?
What to coverThe role includes question selection and topic ordering. Suggested preparation: explain how you would represent student progress and content, choose a recommendation approach, and balance learning value with variety.
How would you adapt question difficulty as a student progresses?
What to coverDifficulty adaptation is a stated focus. Suggested preparation: discuss signals of mastery, how quickly difficulty should change, and how you would avoid overreacting to a small number of answers.
How would you decide when a student should revisit a topic?
What to coverThe role includes revision scheduling. Suggested preparation: describe how you would use prior performance and time since practice, then evaluate whether the schedule improves later performance.
When would collaborative filtering help with content recommendations, and when might it fail?
What to coverRecommendation systems or collaborative filtering experience is requested. Suggested preparation: compare shared patterns across students with individual learning needs, including sparse histories and new content.
How would you build a model to predict future student performance?
What to coverPredictive performance models are part of the work; knowledge tracing and Item Response Theory are listed as optional backgrounds. Suggested preparation: define a prediction target, explain which information is available at prediction time, and compare a simple baseline with a more adaptive approach.
How would you prepare and validate a large student-performance dataset for modeling?
What to coverThe posting calls for SQL, large structured datasets, pandas, and student-performance analysis. Suggested preparation: explain joins and data-quality checks, and how you would prevent later student activity from leaking into earlier predictions.
How would you structure a reproducible pipeline for iterating on recommendation models?
What to coverSetting up ML pipelines is a stated responsibility, and the role names scikit-learn plus PyTorch or TensorFlow. Suggested preparation: outline data preparation, training, versioning, and deployment checks, including when a simpler model is preferable.
How would you evaluate recommendations before releasing them?
What to coverThe role calls for model evaluation frameworks. Suggested preparation: choose offline measures tied to question selection or learning progress, explain how you would split sequential student data, and identify what offline results cannot establish.
How would you test whether a new learning-path algorithm improves outcomes?
What to coverA/B testing infrastructure and methodology are explicitly mentioned. Suggested preparation: define the comparison, primary outcome, guardrail measures, and analysis approach while considering how repeated activity from the same student affects interpretation.
How would you detect and respond to a production-model regression?
What to coverMonitoring production models and responding to regressions are stated duties. Suggested preparation: distinguish data or pipeline failures from genuine performance declines, and explain investigation, rollback, and re-evaluation trade-offs.
Behavioural practice
Tell me about a time you translated a product goal into an ML feature.
What to coverThe role involves working with product colleagues to turn learning-science principles into features. Suggested preparation: use a real situation, your specific actions in resolving ambiguity, and the resulting product or measurement outcome.
Describe a time you found a meaningful pattern in user data.
What to coverAnalyzing student-performance data to inform product decisions is part of the role. Suggested preparation: give a real example of the question, the checks you used to challenge your interpretation, and what decision resulted.
Tell me about a production model regression you handled.
What to coverThe posting explicitly calls for monitoring and responding to regressions. Suggested preparation: explain the situation, your investigation and communication, and the outcome, without claiming the fix worked unless you measured it.
Describe a time an experiment challenged your team's expectations.
What to coverThe role includes model evaluation and A/B testing. Suggested preparation: recount a real test, how you handled unexpected or inconclusive evidence, and what action followed.
Tell me about a time you shipped an ML improvement under practical constraints.
What to coverSetuAI describes this as applied ML whose results ship to production. Suggested preparation: use a real example to explain the constraints, the trade-offs you made, and the observed result.