Your question is Patient Outreach Messaging System. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Design a high-throughput notification and messaging system for Sprinter Health that coordinates patient outreach across SMS, email, and automated voice calls.
Explain the event-driven ingestion, transformation, routing, provider integration, persistence, and observability design. Address ordering, deduplication, retries, provider failures, consent and preference enforcement, delivery status updates, replay, and data quality. Include a practical implementation outline with named technologies and representative code.