Quantitative research · AI evaluation · Model risk

I’m Joe Bunster.

I build and test models for decisions under uncertainty.

I’m a quantitative researcher and modeler working with Meta researchers on AI reasoning, evaluation, and data quality on contract. Previously at JPMorgan, I built challenger models, led independent reviews, and tested whether statistical relationships held across market regimes and made economic sense.

Joseph Bunster wearing a navy blazer and white shirt

01 / Current work

AI evaluation and quantitative research.

My work connects research questions to methods, implementation, and evidence. At Meta, I contribute to reasoning evaluation and vendor strategy. Independently, I develop Regime Alpha to investigate portfolio risk across changing market conditions.

Professional research · Meta, contract

AI reasoning & evaluation

I investigate how to distinguish model reasoning errors from flaws in prompts, rubrics, and reference solutions, and lead early-stage research on annotation quality and repair.

Read about my AI work

Independent research · Founder

Regime Alpha

I develop regime models and portfolio diagnostics to investigate how factor relationships, risk contributions, and diversification change across market conditions.

Explore Regime Alpha

Product development

HomeOnCue

A second independent project: I design and build workflows that turn a home’s details into practical maintenance, budgeting, and DIY guidance.

Explore HomeOnCue

02 / Academic background

Earlier work in applied mathematics.

Thesis projects that shaped my interests in probability, optimization, and financial decisions.

3rd placeU.S. National Collegiate Mathematics Championship · Denver, 2018

More about my background

03 / Contact

Let’s connect.

I’m interested in senior quantitative research and AI evaluation roles, research collaborations, and focused consulting projects. My work spans model validation, evaluation design, data quality, and Python research workflows. Tell me about the problem, scope, and team.

bunster1227@gmail.com
LinkedIn
Based in New York
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