Technical practice
How would you assess whether market and alternative datasets are suitable for AI research?
What to coverSuggested preparation: Discuss data provenance, timestamps, missingness, changing coverage, and whether each feature would have been available when a prediction was made. Explain how those checks affect the credibility of a proposed trading opportunity.
How would you evaluate a predictive model on time-series market data?
What to coverSuggested preparation: Explain chronological training and testing, leakage prevention, comparison with simple baselines, and performance across different periods. Distinguish predictive accuracy from evidence that a trading strategy is useful.
When would you choose classification, regression, or clustering for a trading research question?
What to coverSuggested preparation: Define the target or exploratory objective before selecting a method. Compare interpretability, data needs, and the risk of finding patterns that do not hold in new data.
How would you adapt a transformer or other deep neural network to market or alternative data?
What to coverSuggested preparation: Describe how you would represent the inputs and choose an objective appropriate to the available data. Discuss the trade-off between model capacity and overfitting, and compare the approach with a simpler baseline.
How could prompt engineering support research using text-based alternative data?
What to coverSuggested preparation: Describe a possible extraction or categorization task and how you would test output consistency and factual grounding. Treat this as an application of the posting’s stated interest in advanced prompt engineering, not as a specified company workflow.
How would you work with high-dimensional features when searching for a predictive signal?
What to coverSuggested preparation: Compare approaches such as regularization, feature selection, or representation learning, and explain how you would guard against spurious relationships. Relate the choice to the amount of data and the need to interpret the result.
When might filtering, smoothing, or a hidden Markov model help analyze market time series?
What to coverSuggested preparation: Explain what latent states or noisy observations the method would model and how you would assess whether it adds value. Distinguish estimates available in real time from smoother estimates that use later observations.
How would you decide whether Bayesian methods, expectation-maximization, or variational inference fit a research problem?
What to coverSuggested preparation: Compare the methods in terms of latent variables, uncertainty, computational cost, and approximation. Give a plausible research setting while making clear that the posting does not prescribe a particular inference method.
How would you judge whether a promising model could form a useful trading strategy?
What to coverSuggested preparation: Discuss how predictions would become decisions and how you would evaluate results after trading costs and other practical constraints. Explain why robustness across periods and assumptions matters alongside headline performance.
How would you implement and troubleshoot a large-scale ML experiment?
What to coverSuggested preparation: Discuss reproducible data processing, checks for incorrect inputs or training behavior, and profiling computational bottlenecks. Explain when Python and an ML framework would suffice and when a lower-level implementation might be worth the added complexity.
Behavioural practice
Tell me about a research result that had a meaningful impact.
What to coverSuggested practice: Use a real situation, your research question and specific actions, then the resulting finding or adoption. Explain how you established that the result was rigorous rather than merely novel.
Describe a time you collaborated across different areas of expertise.
What to coverSuggested practice: Give a real example of the situation, how you exchanged or reconciled technical perspectives, and the result. This connects to the posting’s emphasis on collaboration among researchers and technologists.
Tell me about a promising research idea that did not withstand testing.
What to coverSuggested practice: Describe the initial hypothesis, the evidence that challenged it, your response, and the outcome. Focus on how you preserved rigor and changed direction rather than claiming the work succeeded.
Describe a time you had to learn an unfamiliar domain to advance technical work.
What to coverSuggested practice: Use a real situation, the steps you took to learn, and what changed as a result. The posting welcomes interest in learning financial markets without requiring prior market experience.