Andrei Martins
Cientista De Dados Sênior at Gupy
São Paulo, Brazil
Summary
👤
Senior🎓
Top SchoolAndrei Martins is a Senior Data Scientist based in São Paulo with 11 years of experience applying machine learning and experimentation to product and recommendation problems. At Gupy he has progressed from architecting and mentoring data science teams to leading production deployments and bias audits for job seeker ranking models, and previously delivered recommendation and A/B testing wins at PicPay and personalization work at Magazine Luiza. He combines deep technical execution—training deep nets and ensemble models, refactoring algorithms for performance—with cross-functional partnering to turn models into product impact. His background includes an MSc in Information Systems and early experience building industrial monitoring solutions at Petrobras, which gives him a pragmatic systems view when moving models to production. Notably, he has played formal mentoring and academy roles, signaling strength in growing internal data capability beyond individual contributions.
11 years of coding experience
6 years of employment as a software developer
Bsc Computer Science - Science without Borders Scheme, Ciência da Computação, Bsc Computer Science - Science without Borders Scheme, Ciência da Computação at University of BrightonTecnólogo, Análise e Desenvolvimento de Sistemas, Tecnólogo, Análise e Desenvolvimento de Sistemas at Faculdade de Tecnologia de São PauloMaster of Science (MSc), Information Systems, Master of Science (MSc), Information Systems at Univesity of São PauloInformatics Technician, Programming, 105001-X, Informatics Technician, Programming, 105001-X at IFSP - Campus Cubatão
Portuguese, English, Spanish
Github Skills (46)
convolutional-neural-networks10
r-package10
r10
data-visualisation9
grammar9
data-visualization8
causal8
causality8
causal-inference8
image-processing8
image-search7
python7
julia6
statistics6
econometrics6
Programming languages (9)
Github contributions (5)
92amartins/fiinder
Sep 2021 - Oct 2022
An R package for finding good brazilian real estate investments (FII)
Contributions:2 releases, 16 commits, 4 PRs in 1 year 1 month
r-packageinvestmentsfindingbrazilianreal-estate
92amartins/ggplot2
Apr 2022 - Mar 2024
An implementation of the Grammar of Graphics in R
Contributions:19 pushes, 6 branches in 1 year 11 months
grammar-of-graphicsgrammargraphics
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