* High-Integrity Transaction Orchestration:
Designed an asynchronous, financial-grade transaction platform executing the Saga Pattern via Kafka Event Sourcing, guaranted eventual consistency and 100% data integrity across decoupled microservices.
* Hybrid Runtime Architecture:
Implemented a split-plane strategy utilizing GraalVM Native Images for the Control Plane to achieve sub-second cold starts ($0.4s) and an 85% memory reduction, paired with a standard HotSpot JVM Data Plane optimized via JIT for high-throughput mathematical processing.
* Dual-Inference Risk Routing:
Engineered a zero-downtime machine learning validation pipeline executing concurrent dual inference—running a Champion model (Logistic Regression) alongside a Challenger model (XGBoost) in parallel to assure risk mitigations within a <1ms SLA.
* Production Observability & Audit Compliance:
Wired end-to-end telemetry utilizing OpenTelemetry and Tempo to generate cryptographic-level distributed transaction tracking, successfully addressing strict PCI-DSS, PSD2, and GDPR regulatory logging frameworks.
* Storage & Lifecycle Management:
Built a performance-tiered storage layout using Redis for state-hydration caching alongside a tuned PostgreSQL layer to handle persistent, transaction-isolated ACID writes under high concurrency.