Technical practice
How would you choose an LLM for a production application?
What to coverSuggested preparation: Explain how you would compare task fit, output quality, latency, cost and deployment constraints. Describe how you would validate the choice against the application's requirements rather than relying on a model's general reputation.
How would you evaluate a generative AI solution before release?
What to coverSuggested preparation: Describe representative test cases, quality measures and review of problematic outputs. Explain the trade-off between improving output quality and meeting production performance requirements.
How would you integrate an AI application into an existing system?
What to coverSuggested preparation: Walk through the application pipeline, interfaces with existing components and steps needed to reach production-ready quality. Explain how you would test the integration and handle failures at system boundaries.
How would you plan a cloud or on-premises AI application pipeline?
What to coverSuggested preparation: Compare the implications of the two deployment settings for integration, operations and scalability. Keep the answer grounded in the posting's cloud-or-on-premises scope rather than assuming a particular infrastructure.
How would you make an AI application scalable?
What to coverSuggested preparation: Explain how you would identify bottlenecks and test behaviour as demand increases. Discuss trade-offs among responsiveness, capacity and resource use for the application you are designing.
How would you deploy an AI solution on a cloud platform?
What to coverSuggested preparation: Use a platform you know among AWS, Azure or Google Cloud to explain a deployment approach and how you would verify it works. Focus on decisions relevant to operating an AI application, without assuming the role uses a specific cloud service.
When would you use TensorFlow or PyTorch in a solution?
What to coverSuggested preparation: Explain how a deep learning framework supports model development and integration into an application. Compare practical considerations for a relevant task without claiming that either framework is mandated.
How would you apply NLP techniques to an LLM application?
What to coverSuggested preparation: Describe how text preparation and task-specific evaluation could affect the application's results. Explain how you would diagnose whether a weak result comes from the input, the model or the surrounding application.
How would you design a chatbot using generative AI?
What to coverSuggested preparation: Treat chatbots as a possible project type in the posting. Explain how you would manage conversation context, assess response quality and handle responses that do not meet the application's requirements.
How would you troubleshoot an image-processing component?
What to coverSuggested preparation: Treat image processing as another possible project type, not a guaranteed assignment. Describe how you would isolate input, model and integration issues and decide whether a fix improves end-to-end quality.
Behavioural practice
Tell me about a consequential technical decision you owned for a team.
What to coverSuggested preparation: Give the situation, the alternatives you considered and the action you took as the decision owner. State the result and how you assessed whether the decision worked.
Describe a decision you made with multiple teams.
What to coverSuggested preparation: Set out the situation and the differing priorities you needed to reconcile. Explain your actions, how the decision was reached and its result.
Tell me about solving a problem that affected more than your immediate team.
What to coverSuggested preparation: Describe the situation, how you identified the wider impact and what you did with the affected teams. Give the result and distinguish your contribution from the team's collective work.
Describe a time you mentored a junior colleague.
What to coverSuggested preparation: Explain the situation, the specific guidance or support you provided and why you chose that approach. Describe the observed result without overstating your role in their progress.
Tell me about a process you improved to increase efficiency.
What to coverSuggested preparation: Describe the original process and the problem it created. Explain the change you made, how you involved the team and what result you observed.