Work

Three systems, each ending with the trade-off it made and what I would build differently now.

Production · 2024 — present

Talk to Data

“Fifty analysts were filing tickets to ask questions about their own data.”

LangGraph
ReAct agents
Dremio MCP
mem0
PostgreSQL
MLflow
Azure ML
Kubernetes
React / TypeScript

US and Europe, daily use

500-question benchmark

tracked per query in MLflow

run-to-run, same question

Research · 2024 — 2025

Autonomous Web Agent

“The model could see the page. It could not tell you which box was the submit button.”

LangChain
OpenAI
MCP
RAG
DOM / XPath resolution

30% → 59–68%

GPT-4-mini, before and after grounding

first author, peer-reviewed

Shipped · 2024

Stratified Anomaly Detection

“Compare every market to every other market and the small ones all look like errors.”

Isolation Forest
Z-screening
Rolling price windows
Power BI
Python

Records screened

every Michelin sales pipeline

Hierarchy levels

stratification depth

unique values required per stratum