Technical practice
How would you structure a Next.js feature using TypeScript, hooks, and server components?
What to coverThe role calls for strong TypeScript skills and modern React patterns, including hooks and server components. Suggested preparation: explain where data fetching and interactivity belong, and how types help maintain a reliable boundary between frontend and backend.
How would you improve a dashboard that feels slow or is difficult to use with a keyboard?
What to coverThe posting specifically calls for performant, accessible web applications. Suggested preparation: describe how you would identify the bottleneck or accessibility issue, make a targeted change, and verify the result.
When would you choose REST versus GraphQL for a product API?
What to coverThe role involves designing, implementing, and consuming both REST and GraphQL APIs. Suggested preparation: compare client data needs, API evolution, error handling, and implementation complexity rather than treating either approach as universally better.
How would you implement a backend feature using Node.js or Python?
What to coverThe posting names Node.js and Python, including FastAPI and Django, as backend options. Suggested preparation: walk through endpoint design, validation, service boundaries, and how the frontend would consume the resulting API.
How would you integrate an LLM API into a product workflow?
What to coverThe role includes connecting LLM APIs to interfaces and backend services; experience with specific providers is listed as nice to have, not required. Suggested preparation: discuss request flow, latency, failures, and how the UI communicates the state of a response.
How would you connect vector search to an AI-powered interface?
What to coverIntegrating vector search and AI pipelines is a stated responsibility. Suggested preparation: outline how content becomes searchable, how results reach the application, and how you would assess whether retrieved results are useful.
How would you render an AI response as it arrives?
What to coverStreaming interfaces using SSE or WebSockets are nice to have, not required. Suggested preparation: compare when each approach fits and explain how the UI would handle partial output, interruption, and errors.
How would you model data across PostgreSQL, MongoDB, and Redis?
What to coverThe role includes database design across these technologies. Suggested preparation: explain how data shape, relationships, access patterns, and caching needs would guide a choice rather than assuming every feature needs all three.
How would you diagnose a slow database-backed page or API response?
What to coverQuery optimisation is an explicit responsibility. Suggested preparation: trace the request to the relevant queries, examine their execution and access patterns, and weigh indexing or model changes against their costs.
How would you take a feature from code to deployment?
What to coverThe posting calls for CI/CD and deployment infrastructure on AWS, GCP, or Vercel. Suggested preparation: describe a pipeline with checks, deployment steps, and a way to detect and respond to a failed release without claiming a particular company setup.
Behavioural practice
Tell me about a feature you owned from design through deployment.
What to coverThe role calls for end-to-end feature ownership across the stack. Suggested preparation: use a real situation, your specific actions at each stage, and the result, including any trade-off you had to make.
Describe a time you clarified an ambiguous client need during discovery.
What to coverThe posting says the engineer collaborates directly with clients from discovery through launch. Suggested preparation: give a real situation, explain the questions or proposals you used to reach clarity, and state the resulting decision or outcome.
Tell me about a time you resolved a technical disagreement with a collaborator.
What to coverThe role involves working with a solutions architect as well as clients. Suggested preparation: choose a real example, describe how you evaluated the options and communicated your reasoning, and explain the outcome.
Describe a time you coordinated work effectively without relying on immediate replies.
What to coverThe posting describes a remote-friendly, async-first culture. Suggested preparation: use a real example showing the context, what you documented or communicated, and how that affected progress.
Tell me about a problem you encountered close to launching a feature.
What to coverThe role spans implementation through launch and deployment. Suggested preparation: describe a real situation, how you assessed and communicated the risk, what action you took, and the result.