Sample Answer
(S) I inherited a legacy “Orders” module built as a single Activity with heavy business logic, AsyncTasks, and direct network calls via HttpUrlConnection. It was hard to test and frequently broke, causing about 8–10 bugs per release. (T) My goal was to refactor it incrementally to MVVM with a repository pattern, add unit tests, and reduce bugs without blocking releases. (A) I started by introducing a ViewModel and a Repository layer alongside the existing code, using Retrofit and Room. I wrapped old network calls behind repository interfaces, then gradually migrated call sites. I added LiveData to expose UI state and used a sealed class for loading/error/success. I wrote unit tests for the repository and ViewModel, targeting at least 70% coverage, and used feature flags to toggle the new flow for 10% of users initially. (R) Over three sprints, we reduced crash rate in the Orders flow by 40% and cut regression bugs from 8–10 to 2–3 per release. Test coverage for the module increased from ~5% to 72%, and we were able to onboard a new developer who became productive in under a week due to the clearer structure.
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?