Your question is Scalable Microservice for Ingestion. 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).
How would you design a scalable microservice to handle high-frequency data ingestion for osapiens? Explain how you would accept, validate, buffer, process, persist, and expose incoming data while preserving ordering, durability, and tenant isolation. Cover capacity planning, online and batch processing, operational monitoring, failure recovery, and how ML-based validation or anomaly detection could be introduced without compromising ingestion latency.