• Developed a persona-driven chat UI using React and TypeScript, enhancing user experience with streamed Markdown and inline citations.

• Integrated a comprehensive Stripe Payments system, ensuring reliable billing through concurrency-safe logic and idempotency.

• Implemented a usage and cost attribution pipeline with Decimal-safe accounting, providing accurate financial insights.

• Developed a real-time intraday research stack utilizing tick/minute data from Polygon.io for executing paper trades on Alpaca.

• Engineered a robust Python ML pipeline incorporating scikit-learn and PCA with K-Medoids clustering for feature computation and inference.

• Designed comprehensive backtests to track performance metrics, achieving a 77.7% reduction in max drawdown compared to buy-and-hold strategies.

• Operated fab-support services on Kubernetes across Taiwan, Germany, and Japan, ensuring 99.9% uptime for internal users.

• Migrated fab-floor ticketing data from MongoDB to Elasticsearch, enhancing search latency by 50%.

• Extended backend functionality in Java to support role-based submission and cross-department routing.

• Evaluated digital-asset policies and environmental impacts to inform NGOs and donors.

• Co-authored two significant reports on digital assets and humanitarian cash-based transfers for CCAF.

• Provided actionable recommendations to enhance social safeguards in aid programs.