AI systems
Python, LangGraph, LangChain Core, OpenAI API, tool calling, structured outputs, RAG, graph-backed retrieval, agent evaluation, run metrics, policy controls, workflow orchestration, context engineering, and MCP integration. Demonstrated in the evaluation workflow and EvidEngine.
Backend and data
FastAPI, PHP, REST APIs, Neo4j, PostgreSQL, MySQL, Redis, SQL, knowledge-graph and relational modeling, caching, and data-pipeline optimization. Demonstrated in current systems and production work.
Frontend and visualization
React, TypeScript, Vue, JavaScript, D3.js, Apache ECharts, Phaser, Three.js, responsive interfaces, network visualization, and GIS interfaces. Demonstrated in graph interfaces and VimCommander.
Quality and delivery
System design, performance analysis, unit, integration, and end-to-end testing, replay and regression evaluation, observability, GitHub Actions, CI/CD, Docker, and Google Cloud Platform. Demonstrated across current and prior work.