Technical practice
How would you design an evaluation framework for text, vision and generative AI features?
What to coverSuggested preparation: Explain how you would choose task-specific quality measures and representative test cases, then benchmark latency, reliability and cost alongside quality. Describe how the framework would make results comparable across iterations without treating different modalities as identical.
How would you set an acceptance threshold when evaluation results are uncertain?
What to coverSuggested preparation: Discuss sample selection, variability and statistical uncertainty before setting a threshold tied to the feature’s success criteria. Explain what evidence would justify a decision to ship, revise or gather more data.
How would you investigate an AI feature whose quality improves while latency and cost worsen?
What to coverSuggested preparation: Break down failures by inputs, model or pipeline stage, and operating conditions rather than relying on an aggregate score. Explain the trade-offs you would test and how you would determine whether a change meets the agreed thresholds.
How would you architect an observable AI service shared by multiple product teams?
What to coverSuggested preparation: Cover service boundaries, reusable evaluation or benchmarking components, and interfaces for integration with broader product systems. Explain how observability and isolation would help teams diagnose failures and scale without making every use case depend on the same configuration.
How would you design and evaluate a production RAG pipeline?
What to coverSuggested preparation: Walk through retrieval, context selection and generation, including how you would test answer quality and trace failures to a pipeline stage. Discuss the effects of retrieval choices on latency, cost and operational reliability.
When would an agentic workflow be preferable to a simpler AI pipeline?
What to coverSuggested preparation: Compare the potential value of multi-step decisions with the added latency, cost and failure modes. Describe how you would constrain and evaluate the workflow before recommending it for a production use case.
How would you make AI experiments reproducible and useful for later deployment decisions?
What to coverSuggested preparation: Explain what you would version across data, configurations, models, code and evaluation results. Describe how a team could reproduce a benchmark and connect its findings to a deployed service iteration.
How would you structure and test a Python backend API for an AI service?
What to coverSuggested preparation: Discuss clear API contracts, modular code and tests for normal responses, failures and dependencies. FastAPI and NodeJS are examples in the posting; focus on transferable design choices rather than assuming a required framework.
How would you deploy and operate an AI workload under latency, reliability and cost constraints?
What to coverSuggested preparation: Explain how you would package, deploy, monitor and iterate on a service, including where Docker, Kubernetes or a cloud platform could fit. Compare scaling and reliability choices against their operational complexity and cost.
How would you assess an AI feature and recommend building, partnering or a hybrid approach?
What to coverSuggested preparation: Start with product success criteria and a feasible benchmark, then compare candidate approaches using quality, latency, reliability, cost and integration effort. Explain what evidence would change your recommendation as tools or requirements evolve.
Behavioural practice
Tell me about a time you aligned an AI feature with a product manager’s success criteria.
What to coverSuggested preparation: Use a real situation, your actions to clarify feasibility and trade-offs, and the resulting decision. Explain how you communicated uncertainty rather than presenting a benchmark as a guaranteed product outcome.
Describe a time you integrated an AI system with software or data engineering work.
What to coverSuggested preparation: Set out the situation, your role in resolving an interface or delivery dependency, and the result. Highlight how you coordinated responsibilities and handled a constraint that affected the wider architecture.
Tell me about a time you mentored a junior engineer or intern on technical work.
What to coverSuggested preparation: Give a real situation, the guidance and feedback you provided, and what changed as a result. Distinguish your contribution from the other person’s work.
Describe a time you explained a difficult technical trade-off to a non-technical stakeholder.
What to coverSuggested preparation: State the situation, how you adapted your explanation, and the decision or understanding that resulted. Show how you conveyed the relevant evidence and limitations without losing the practical implication.
Tell me about a time priorities shifted during a high-pressure delivery.
What to coverSuggested preparation: Use a real situation, the actions you took to reprioritize and communicate proactively, and the result. Explain how you balanced speed with service reliability or evaluation quality.