Damien Ramunno-johnson
Principal Engineer, Data And Machine Learning
Portland, Oregon, United States
Summary
🤩
Rockstar🎓
Top SchoolDamien Ramunno-Johnson is a Principal Engineer in Data and Machine Learning with 13 years of experience applying advanced analytics and production ML infrastructure to large-scale financial products. Based in Portland, he has risen through senior technical and leadership roles at Block, where he built model development platforms and led hybrid teams that bridge modeling and engineering for Cash App. His background as a biophysics PhD and multiple postdoctoral positions reveals deep expertise in high-throughput microscopy, image analysis, and custom scientific instrumentation—skills he has translated into automation and scalable data systems. Damien is comfortable moving between research-grade algorithm development and hardened production pipelines, and he brings a track record of securing competitive research funding and delivering practical software that accelerated lab throughput.
13 years of coding experience
18 years of employment as a software developer
B.S Physics and Astronomy, B.S Physics and Astronomy at University of WashingtonUniversity of California, Los Angeles
English, Italian, German
Github Skills (200)
dataflow10
portable10
progress-bar10
jupyter-extension10
jupyterlab-extension10
package-manager10
python10
pylint10
python-extension10
machine-learning10
imagej10
jupyterlab10
dependency-management10
hermit10
jupyter-widget10
Programming languages (13)
Github contributions (5)
damienrj/EarthquakeBots
Aug 2015 - Jul 2019
Contributions:1 PR, 26 pushes, 1 branch in 3 years 11 months
square/pydocker
Mar 2019 - May 2020
Contributions:2 releases, 4 reviews, 29 commits in 1 year 2 months
dockerpython
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