Jeff Hernandez
Senior Software Engineer at Alteryx
Wichita, Kansas, United States
Summary
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Rockstar🎓
Top SchoolJeff Hernandez is a Senior Software Engineer with nine years of experience building machine learning tools and big data applications, currently at Alteryx in Wichita, Kansas. He specializes in data cleansing, feature engineering, and model tuning using open-source tooling, with hands-on experience moving ML workflows into production. At Alteryx and Feature Labs he focused on scalable feature engineering, and his open-source contributions include streamlining CI/CD for the popular Featuretools library—migrating tests to GitHub Actions and automating PyPI releases. Comfortable as both an individual contributor and consultant, he blends engineering rigor with operational improvements that reduce release friction. Trained in business and economics, he brings a pragmatic, data-driven mindset to engineering decisions and cross-functional collaboration.
9 years of coding experience
6 years of employment as a software developer
Butler County Community CollegeBachelor of Business Administration - BBA, Finance, Real Estate, Bachelor of Business Administration - BBA, Finance, Real Estate at Wichita State University
Spanish, English
Stackoverflow
2,083reputation
1.2mreached
46answers
9questions
filtering
top-5%
Github Skills (18)
github-ci10
cicd10
githubaction-workflow10
python9
filtering9
testing7
release-management7
automated-machine-learning7
pypi7
truncation6
async-await6
outliers6
featuretools6
typescript6
feature-engineering6
Programming languages (4)
Github contributions (5)
alteryx/featuretools
Nov 2019 - Mar 2022
An open source python library for automated feature engineering
Role in this project:
DevOps Engineer
DevOps EngineerContributions:8 releases, 150 reviews, 44 commits in 2 years 4 months
Contributions summary:Jeff's commits primarily focused on improving the build and release processes for the `featuretools` repository. They implemented a GitHub Action to automatically upload releases to PyPI, updated dependency checks and added various testing enhancements. The user also removed CircleCI integration and migrated CI tests to GitHub Actions, streamlining the testing and deployment workflow.
python-librarypythondata-scienceautomated-machine-learningmachine-learning
alteryx/featuretools-tsfresh-primitives
Nov 2019 - Mar 2022
TSFresh primitives for featuretools
Contributions:24 releases, 4 reviews, 28 commits in 2 years 4 months
featuretoolsprimitives
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