Ben Feifke
Founder And Principal at Beyond Data Consulting
Berlin, United States
Summary
👤
Senior🎓
Top SchoolBen Feifke is a founder and principal data engineering consultant based in Berlin with nine years of experience building production-ready machine learning and data systems across startups and large tech firms. He has held senior data science and ML engineering roles at Delivery Hero and YC-backed Truemetrics, and now runs Beyond Data Consulting while also teaching "Polars for Data Science" for O'Reilly. His background blends optical engineering and data science, enabling a strong quantitative approach to system design and performance optimization. Ben frequently transitions between hands-on engineering and strategic consulting, delivering scalable pipelines and pragmatic ML solutions. A global traveler and former full-stack engineer, he brings a rare mix of research rigor, product-focused implementation, and clear technical teaching.
9 years of coding experience
11 years of employment as a software developer
Lexington High SchoolMaster’s Degree, Data Science, Master’s Degree, Data Science at University of Rochester
Spanish, English, Portuguese, German
Stackoverflow
176reputation
18kreached
3answers
1question
Github Skills (67)
python10
etl10
automation10
mlops10
polars10
orchestration10
optimization10
apache-airflow10
data-engineering10
dataframes10
scheduler10
elt10
rust10
data-integration10
data-pipelines10
Programming languages (11)
Github contributions (5)
bfeif/clarence
Jan 2022 - Oct 2022
Contributions:28 commits, 19 PRs, 46 pushes in 8 months
bfeif/personal-website
Jun 2022 - May 2025
Contributions:19 PRs, 130 pushes, 26 branches in 3 years
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