Sample Answer
On my previous team, we had a recommendation model for our marketplace that was plateauing: CTR had stalled around 4.2%, and product wanted a meaningful lift. The model was a matrix factorization trained nightly. I started by adding proper monitoring and offline/online dashboards, and found a big feature drift issue: item embeddings weren’t updating fast enough for new inventory. We redesigned the pipeline to generate item features hourly and introduced a two-tower deep retrieval model with candidate generation + re-ranking. Concretely, we added session-level features, simple text embeddings from product titles, and a recency boost. I ran structured A/B tests; offline NDCG@10 improved ~18%, and in production we saw CTR move from 4.2% to 5.0% and revenue per session up 9% over four weeks. I summarized results in a one-pager for leadership with clear before/after metrics and a cost breakdown, and walked product and marketing through examples to show why results changed.
Keywords
Walk me through a recent multi-channel digital marketing campaign you managed end-to-end. How did you set objectives, choose channels, allocate budget, and measure success?
In your resume you note improving or optimizing [a process, KPI, or metric]. What specific baseline metrics did you start from, what steps did you personally take, and how did you verify that the improvement was due to your changes rather than external factors?
Based on your hydrology and irrigation engineering background, explain how you would estimate the irrigation water requirement for a kharif crop in a semi-arid region of Gujarat. Walk me through each step: from reference evapotranspiration estimation, crop coefficient selection, effective rainfall calculation, to arriving at canal discharge for a given command area.
In your civil engineering studies, what specific design coursework or project work did you complete related to irrigation channels or canals (e.g., design of lined/unlined canals, distributaries, minors)? Describe one such design in detail, including how you determined discharge, permissible velocity, section dimensions, and lining choice for Gujarat-type soil and climate conditions.
On your resume you mention working on a cross-functional project (e.g., involving multiple teams or stakeholders). Describe a situation from that project where priorities conflicted—how did you navigate the trade-offs and what was the final outcome?