Sample Answer
(S) On a shopping app, our product listing screen took ~4–5 seconds to load and scroll jank was visible, causing a 12% drop in session duration on that screen. (T) I needed to reduce load time and achieve smooth 60fps scrolling without changing the backend API. (A) I profiled the screen with Android Studio Profiler and discovered heavy work on the main thread: complex image decoding and multiple nested RecyclerViews. I migrated image loading to Coil with proper caching, replaced nested RecyclerViews with a single RecyclerView using multiple view types, and implemented DiffUtil to avoid full list refreshes. I also added pagination and prefetching using Paging 3. (R) Cold load time dropped from ~4.2s to 1.6s on mid‑range devices; frame drops decreased by ~70% according to Systrace; and ANR occurrences for that flow went to zero in the next release. Engagement on the listing screen improved by 18% and the add‑to‑cart rate from that screen increased by about 9% over the next month.
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?