9fin Interview Questions
The questions to prepare for 9fin interviews, across all roles. Questions from real interview reports rank first. Updated daily.
Build a locality-sensitive hashing index for approximate cosine-similarity search.
Design an LLM serving system that balances latency, cost, scalability, and safety for production traffic.
Explain how to evaluate a generative model using offline and online methods, with attention to hallucination, product metrics, and experiment design.
Decide how to prioritize technical debt when roadmap pressure, reliability risk, and stakeholder demands compete.
Build an unlevered DCF, bridge enterprise value to equity value, and test implied share price sensitivity to WACC and terminal growth.
Explain why Baird, its Research platform, and the Research Analyst role align with your experience and long-term goals.
Design a marketing campaign experiment with a pre-registered metric plan, power calculation, and ship rule that respects guardrails.
Approach for monitoring a model in production and spotting drift, threshold issues, and calibration loss.
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