Sample Answer
(S) On a product listing page, users were experiencing 6–7s load times and high bounce rates (~55%). (T) I was tasked with reducing load time and improving perceived performance without changing backend APIs. (A) First, I profiled the page using Chrome DevTools and Lighthouse, identifying a large bundle (1.8MB) and render-blocking scripts. I implemented code-splitting with dynamic imports, moved non-critical scripts to async/defer, and replaced a heavy image carousel library with a lightweight custom implementation. I also added image lazy-loading and compressed images via WebP. On the CSS side, I removed unused styles with PurgeCSS and inlined critical CSS for above-the-fold content. (R) These changes reduced the JS bundle by ~45% and cut initial load time from ~6.5s to ~2.3s on 3G. The Lighthouse performance score increased from 52 to 88, and the page’s bounce rate dropped from 55% to 38% over the next month. Customer support tickets about “site being slow” for that page decreased noticeably, and the approach became a template for optimizing other pages.
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?