Willian Fuks
Machine Learning Engineer at Factored
São Paulo, Brazil
Summary
👤
Senior🎓
Top SchoolWillian Fuks is a versatile data scientist and engineer with a decade of experience building production ML and analytics platforms for fintech and retail in São Paulo. He has delivered measurable impact—deploying a PyTorch classifier on SageMaker that processes 40M+ monthly transactions with a 12 percentage-point accuracy gain, and designing EMR/Spark pipelines handling hundreds of GB/day under tight SLAs. Equally comfortable writing model code and production plumbing, he led Carrefour’s BigQuery/dbt “Source of Truth” initiative (including an open-source dbt plugin) and built serverless recommender systems and A/B testing frameworks at Dafiti. He combines hands-on deep learning, LLM tooling and prompt evaluation (raising biomarker extraction accuracy from ~30% to ~70%) with pragmatic data engineering practices that emphasize observability, cost control and operability. Notably, he maintains a self-made portfolio (maiolnir.com) that reflects a playful, product-minded approach to solving hard data problems.
10 years of coding experience
10 years of employment as a software developer
Master, Machine Learning applied to e-Commerce data, Master, Machine Learning applied to e-Commerce data at USP - Universidade de São Paulo
English
Stackoverflow
11,529reputation
1.2mreached
247answers
36questions
sql
top-5%
google-bigquery
top-1%
python
top-5%
google-analytics
top-5%
google-cloud-platform
top-1%
Github Skills (80)
google-cloud-platform10
python10
vim10
lua10
google-bigquery10
pandas10
lunarvim10
r-package10
data-science10
tensorflow-probability10
data-structure10
causal-inference10
vscode10
data-analysis10
ide10
Programming languages (10)
Github contributions (5)
WillianFuks/example_dataproc_twitter
Oct 2017 - Dec 2017
This repository is used as source code for the medium post about implementing a Twitter recommender system using GCP.
Contributions:64 commits, 62 pushes, 6 branches in 2 months
gcprecommender-systemtwitter
WillianFuks/pyClickModels
Mar 2020 - Jun 2021
ClickModels for Search Engines Implemented on top of Cython.
Contributions:1 release, 28 commits, 10 PRs in 1 year 2 months
cythonsearch-engineclickmodelsmachine-learning
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