Queues

A robust architectural design for a high-throughput, multi-channel notification service supporting push, email, and SMS; featuring strict prioritization queues, tiered rate limiting, and reliable delivery tracking.

A highly scalable real-time streaming pipeline engineered to continuously ingest and process high-volume user event streams; gracefully handling late arrivals and robust fault tolerance protocols.

Design patterns for reliable microservice behavior under load; implementing strict request idempotency, non-blocking async I/O, robust circuit breakers, durable background queues, and observability.