Alex Hagen
San Diego, California, United States
Summary
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SeniorAlex Hagen is a Senior Staff Engineer and former astrophysicist with 13 years of experience bridging software engineering, data science, and machine learning to deliver production-grade analytics and models. He has led and scaled data science teams and programs—growing a team by 300% and instituting internship pipelines—while driving product-focused R&D in geospatial, time series, and mobile data. His career spans startups and enterprise finance, where he built serverless data pipelines, unit-tested R packages, and entropy-based research for multi-asset strategies. An active open-source contributor to the astronomy library astropy, he implemented and hardened CCD signal-to-noise and statistical tools used by the community. Based in La Mesa, CA, Alex combines hands-on engineering at Qualcomm with a PhD-trained scientific rigor, often turning telescope-grade signal processing techniques into robust ML and data-engineering solutions. He is known for mentoring engineers and translating complex research into scalable products.
13 years of coding experience
Github Skills (8)
python10
astrophysics10
astronomy10
numpy10
data-analysis10
testing9
bootstrap9
bootstra9
Programming languages (5)
Github contributions (5)
astropy/astropy
Mar 2013 - Nov 2014
Astronomy and astrophysics core library
Role in this project:
Data Scientist
Data ScientistContributions:19 commits, 1 PR, 24 comments in 1 year 8 months
Contributions summary:Alex primarily contributed to the `astropy/astropy` repository by developing and refining a signal-to-noise ratio (SNR) function for CCD observations. This involved initial implementation, refactoring, and bug fixes, demonstrating a focus on astronomical data analysis and modeling. The user also added tests for the SNR function and included a bootstrap function in the stats module to improve data analysis capabilities. Additionally, the user made several improvements to tests and documentation.
core-librarypythonastronomyscienceastrophysics
astronomeralex/filtercurves
Mar 2014 - Jul 2017
Contributions:25 commits, 3 pushes in 3 years 4 months
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