• Analyzed GCP Kubernetes workloads and built a Spot VM proof-of-concept projecting ~58% compute cost savings to guide migration strategy.
• Built Grafana dashboards for Istio traffic, KEDA health, Kafka metrics, and service dependencies used across multiple global regions for on-call debugging.
• Increased unit test coverage for a ~30K LOC Spring Boot service from 50% to 80% to mitigate regression risks.
• Debugged KEDA scaler and operator issues and coordinated a zero-downtime KEDA version upgrade across the service ecosystem.

• Built a hospital nurse monitoring system (Go, React, PostgreSQL) to digitize Uroflow and IV tracking with secure RBAC, 22+ normalized tables, structured logging with rotation, and reusable React components.
• eveloped a React interface and JWT-authenticated API (with refresh tokens) for ambulance live streams using Ant Media, enabling secure remote monitoring by medical staff.
• Engineered a WebSocket-based CCTV stream manager: multithreaded Python clients on embedded IoT devices convert RTSP to RTMP and publish to Ant Media Cloud, managed via Flask REST API for command/control; Dockerized and deployed via CI/CD.

• Refactored modular frameworks from unified legacy formats into distinct, independent REST and gRPC microservice components.
• Merged structural fixes optimizing security validations, dependency injections, and thread synchronization layers.

Designed a distributed decoupled auditing application where database mutations emit localized pipeline events via Kafka brokers.

• Utilized parallelized isolated consumer groups to route persistent data indexes directly into Elasticsearch clusters.
• Configured dynamic operational caching models utilizing Redis to heavily mitigate primary storage access load.