Madison Mai
I turn messy data into smart systems. Ex-finance analyst, now building AI tools that actually ship!
Read More Contact MeAbout Me
I'm a Data Scientist & ML Engineer based in Boston, MA, with 5+ years of experience as a Senior Financial Analyst and graduate degrees in Financial Mathematics and Computer Engineering (Human-Robot Interaction) from Tufts University.
My career sits at the intersection of quantitative finance and AI engineering. At the University of Minnesota School of Medicine I managed $3B+ research portfolios and led the deployment of enterprise Tableau/SQL reporting dashboards that reduced reporting time by 10% and raised data accuracy to 99%. I bring that same rigour to building GenAI systems — RAG pipelines, agentic LLM tools, fraud detection models, and options pricing APIs.
I'm fluent in the full ML stack: data ingestion, feature engineering, model training, evaluation, and production deployment with CI/CD. I thrive at translating complex analytical problems into clear, scalable technical solutions.
Boston, MA mengyao.li.oh@gmail.com
Projects
AI Financial Research Copilot
Claude API LangChain FAISS StreamlitBoston Airbnb Market Dashboard
Plotly Dash Pandas RenderFraud Detection Model
LightGBM XGBoost Random ForestOption Pricing Application
C# ASP.NET Monte Carlo RESTful APIRESTful API
POST /greeks
Stock Return ML Pipeline
LightGBM MLflow FastAPI DockerMore on GitHub
SEC RAG Portfolio Opt. Loan DefaultWork Experience
Senior Financial Analyst
University of Minnesota – School of Medicine
Dec 2019 – Mar 2025 · Minneapolis, MN
- Managed $3B+ portfolio using financial modeling and forecasting to drive scalable budgeting decisions.
- Built reporting pipelines for budget-to-actual analysis, ensuring compliance across grant-funded projects.
- Developed dashboards with SQL, ETL & Tableau — reduced reporting time by 10% and improved accuracy to 99%.
Financial Analyst
Boston Scientific Corporation
Feb 2019 – Dec 2019 · Arden Hills, MN
- Ensured compliance for $2B+ contracts by analyzing federal regulations and financial policies.
- Automated pipelines using PostgreSQL & Python, saving time and identifying $5M in revenue opportunities.
Data Analyst Intern
Deloitte China
May 2018 – Aug 2018 · Chongqing, China
- Built data pipelines in PostgreSQL to integrate and analyze multi-source enterprise data.
- Created Tableau dashboards to monitor system performance and support real-time decisions.
Skills
Programming Languages
Python R SQL C# JavaScriptML / AI Frameworks
TensorFlow PyTorch Scikit-learn LightGBM XGBoost Random ForestLLMs & GenAI
Anthropic Claude LangChain FAISS BM25 / RAG Sentence TransformersData & Visualization
PostgreSQL Tableau Plotly / Dash Pandas NumPyDevelopment Tools & Frameworks
Git Visual Studio .NET Core / ASP.NET FastAPI Streamlit Docker MLflowStatistical & Finance
Monte Carlo / CVaR Linear / Logistic Regression Clustering / KNN SAP Forecasting Risk Analysis Regulatory ComplianceEducation
MS, Computer Engineering – Human Robot Interaction
Tufts University
Medford, MA · Expected Dec 2026
Focused on human-robot interaction design, embedded systems, sensor fusion, and applied AI in robotic contexts. Builds on a foundation of software engineering and machine learning to design intelligent, user-centred systems.
MS, Financial Mathematics
University of Minnesota – Twin Cities
Minneapolis, MN · May 2024
Quantitative finance, stochastic calculus, Monte Carlo simulation, CVaR, portfolio optimisation, and statistical modelling for financial applications.
BS, Management Information Systems · Minor in Finance
University of Minnesota – Twin Cities
Minneapolis, MN · Dec 2018 · Dean's List 2016–2018
Data management, systems analysis, business analytics, information architecture, and API design — with a finance minor covering valuation, risk, and capital markets.