juan-martinez/website

Juan Martínez

Engineer at Preferred Networks
Ph.D. in Economics, Keio University
Based in Japan — currently building with AI agents
zshctx 100%

About

overview

Research, full-stack web development and LLM applications across a wide range of technical domains.

I majored in Economics at Keio University's Ph.D. program, researching labor and education economics. Curiosity pulled me through payments platforms and the study of large social networks, to where I am now: applying generative AI and AI agents to solve real-world problems.

Current interests

AI agentsprocess optimization w/ GenAILLM training & fine-tuningfast prototypingmountainscampingpomeranians

Languages

JapaneseN1
EnglishBusiness
SpanishNative

Featured builds

tools · papers · collaborations

Selected publications

full list on ORCID
2023

Homophily and Community Structure at Scale: An Application to a Large Professional Network

AEA Papers and Proceedings

A short paper on large professional networks, community structure, and homophily at scale.

2021

Panel Data Analysis of the Generational Replacement Effect on Employment in Japanese Companies

Japan Labor Issues

Panel-data analysis of how aging workforces in Japanese companies relate to lower hiring of new graduates.

2018

The Short-Term Impact of Crime on School Enrolment and School Choice: Evidence from El Salvador

Economía

Empirical work on crime, education decisions, and short-term household responses.