Julien Shim
Data Engineer I Apple, Inc.
San Francisco, California, United States
Summary
👤
Senior🎓
Top SchoolJulien Shim is a data engineer with eight years of experience building end-to-end data pipelines, automation tools, and scalable research solutions, currently at Apple in San Francisco. He blends practical engineering—Python, Swift, PostgreSQL, ETL, WebSockets and REST APIs—with a strong user-research background, enabling data systems that are both reliable and human-centered. Julien has repeatedly turned experimental prototypes into production-grade pipelines through rigorous testing, performance tuning, and clear technical documentation. His work has driven dramatic efficiency gains (from scheduling tools to device onboarding) and improved data quality across cross-functional teams. Curious and investigative, he frequently explores new frameworks and architectures to keep solutions maintainable at scale.
8 years of coding experience
Bachelor of Arts (B.A.), Asian American Studies, concentration in Sociology & Psychology, Bachelor of Arts (B.A.), Asian American Studies, concentration in Sociology & Psychology at University of California, DavisFull Stack Web Development Certification, Computer Software Engineering, Full Stack Web Development Certification, Computer Software Engineering at UC Berkeley Extension
Korean
Github Skills (12)
ejs6
mvp5
mongodb4
mvc4
nodejs4
google-authentication4
html3
networking3
docker3
embedded-javascript3
mysql2
orm2
Programming languages (3)
Github contributions (5)
julienshim/hackerrank-playground
Aug 2018 - Jul 2022
Contributions:163 pushes, 1 branch in 4 years
julienshim/Swift-Playground
Nov 2018 - Apr 2022
Contributions:45 pushes, 1 branch in 3 years 5 months
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