Meta Frontend Engineer Interview Questions

I would avoid hardcoded text, support variable string lengths, and design layouts that can handle different writing systems. I would also think about date, number, and currency formatting, plus right-to-left rendering where needed.

I would keep the architecture modular enough to support change but not over-engineer it for hypothetical future needs. Clear ownership, feature flags, and stable component contracts help the team move fast without breaking everything.

I would explain the concern, the trade-offs I raised, and how I tried to make the decision concrete with user impact or technical risk. A good answer shows that I can challenge ideas constructively while still aligning with the team once a decision is made.

I would define budgets for bundle size, time to interactive, and interaction latency, then track them continuously in CI and release monitoring. Budgets only matter if they are visible and enforced before regressions reach users.

I would separate responsibilities, simplify the API, and move unstable logic into smaller units that are easier to reason about. If the component serves many use cases, I would define a core primitive and build higher-level wrappers on top.