Sample Answer
I led the launch of a Dockerized recommendations service for our ecommerce app, used by about 1.5M monthly users. Data science had a strong offline model with a 14% CTR lift in experiments, but the API contract, latency, and fallback behavior were fuzzy. I set up a shared API spec and a versioned Docker image flow: data scientists owned the training image and batch jobs; my team owned the real‑time inference container and Kubernetes deployment. We agreed on hard SLOs (p95 < 120ms, 99.9% uptime) and a feature flag plan so React and Android could gradually roll out. When DS pushed for a more complex model that doubled inference time, I proposed a two‑tier approach: lightweight model online, heavier model in nightly re‑ranking. In production, we saw a sustained 9% uplift in add‑to‑cart and less than 0.5% error rate, with clean rollback paths.
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?