IntermediateSITUATIONAL
Scenario: Product leadership asks you to accelerate delivery of a new React feature but the UI is complex and tests are minimal. How would you prioritize work, mitigate risks, and ensure quality while meeting the tighter deadline?
front end developer react
General

Sample Answer

When asked to accelerate a complex dashboard feature for a 12-person product org, I split the scope into an MVP that delivered 70% of value in two weeks and a follow-up for polish. I prioritized end-to-end happy-path, critical edge cases, and instrumentation. To mitigate risk I paired with a QA engineer and wrote focused integration tests (Cypress) for critical flows and lightweight unit tests for key logic, which covered ~80% of risk areas. I also added feature flags and dark-launched the UI to 10% of users, monitoring errors and performance for 48 hours. That approach let us ship on time, with rollback ability, and reduced hotfix rate by 60% compared to previous fast-rollouts.

Keywords

Slice scope into MVP and follow-ups to hit deadlineFocus tests on critical flows, add integration tests and instrumentationUse feature flags and gradual rollout to reduce blast radius