Your average
80
Selected candidate
88
Gap to close
8 pts
Mostly from one question
Your answer: Proposed WebSockets with optimistic UI, a React context for comment state, and a REST fallback for history.
What worked
Clear client architecture and excellent optimistic-update reasoning.How to level up
Didn't address conflict resolution or how comments anchor when text is edited. Mention CRDTs or operational transforms.Your answer: Suggested a role field on the user and checking roles in the API.
What worked
Understood the need for server-side enforcement.How to level up
Roles on a user don't scale to multi-team access. Use a membership join table with scoped roles, and separate link tokens.Your answer: Profiled first, found context-triggered re-renders, split state, memoised rows, then virtualised the list.
What worked
Measured before optimising — the panel's favourite answer of the day.How to level up
Could add how you'd prevent regressions (performance budgets in CI).Your answer: Pushed back on a launch date with data on error rates; negotiated a phased rollout.
What worked
Data-backed, collaborative, and showed a real outcome.How to level up
Quantify the result — e.g. "cut incident rate by 40%" lands harder than "it went well".