John Walk
Senior Machine Learning Engineer at Spotify
Boston, Massachusetts, United States
Summary
👤
Senior🎓
Top SchoolJohn Walk is a Senior Machine Learning Engineer with 13 years of experience building scalable data and ML systems, currently applying his expertise to search and personalization at Spotify. He has led cross-functional teams and rearchitected search backends and data pipelines at Pluralsight and Wayfair, bringing production-ready ML models, distributed processing with Dask, and robust engineering practices to large-scale consumer-facing systems. Trained as a physicist with a Sc.D. from MIT, he blends deep quantitative modeling from fusion research with practical software engineering to ship reliable, maintainable solutions. Known for mentoring and developing company-wide templates and trainings, he steadily raises team capability while tackling hard natural-language and search problems. A self-described "immortal god-emperor of data," he balances technical leadership with hands-on implementation across the full ML lifecycle.
13 years of coding experience
9 years of employment as a software developer
Bachelor of Science (B.S.), Physics and Mathematics, Bachelor of Science (B.S.), Physics and Mathematics at Massachusetts Institute of Technology
Stackoverflow
1reputation
0reached
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Github Skills (48)
python10
json-schema10
data-science10
machine-learning10
apache10
validation10
scheduler10
etl10
automation10
mlops10
parsing10
orchestration10
pydantic10
jupyter9
data-engineering9
Programming languages (5)
Github contributions (5)
jrwalk/jrwalk.github.io
Jul 2015 - Mar 2022
Jekyll-built website hosted on Github
Contributions:10 PRs, 125 pushes, 12 branches in 6 years 9 months
hostedjekyll
pluralsight/tech-blog-fastapi-demo
Dec 2019 - Jul 2020
sample code for tech blog post "Porting Flask to FastAPI for ML Model Serving"
Contributions:11 commits, 2 PRs, 4 pushes in 7 months
fastapiflaskmlmodelporting
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