Walk through a project in detail

Walk through one significant project in exact detail: timeline (start/end dates and major milestones), scope and objectives, your specific responsibilities, team composition and who did what, key technical decisions and why, risks and how you mitigated them, measurable outcomes (metrics, revenue, latency, cost), and post-launch learnings. Be prepared to deep-dive into design docs, PRs, and trade-offs you considered and rejected.