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Guillaume KhayatGK
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Guillaume Khayat

@guillaumekhayat

I build Python-based quantitative risk platforms and AI workflows for econometric model development.

Poland
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At State Street, I build AI applications and quantitative risk software that take econometric models from raw data to validation-ready documentation and evidence.

I architected a LangGraph multi-agent framework for automated model development and built a skill that generates Sphinx documentation from code-derived metadata.

I also enhance a REST API platform for financial models and data workflows, collaborating with frontend developers and end users to deliver a seamless experience. My work includes production code for CRE wholesale credit risk models and calculation engines used across portfolio types and regulatory exercises.

Previously, I developed models and led a Scrum team at UBS, following earlier work as an Economist at Moody's Analytics. I bring a PhD in Economics, an MSc in Statistics, and hands-on experience in Python-based software development, data science, and econometrics.

Experience

Work history, roles, and key accomplishments

Moody's Analytics logoMA

Economist

Moody's Analytics

Jan 2018 - Dec 2019 (1 year 11 months)

Conducted economic analysis and provided insights to support business decisions.

Education

Degrees, certifications, and relevant coursework

Aix-Marseille School of Economics logoAE

Aix-Marseille School of Economics

Doctor of Philosophy, Economics

2017 -

PhD in Economics with a focus on monetary policy, culminating in a thesis titled 'Three Essays on Monetary Policy'.

École Nationale de la Statistique et de l'Analyse de l'Information logoCL

École Nationale de la Statistique et de l'Analyse de l'Information

Master of Science, Statistics

2009 - 2013

M. Sc. in Statistics (Diplôme d'ingénieur) from ENSAI, a national school for statistics and information analysis.

Tech stack

Software and tools used professionally

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