Matias Grioni
Senior Machine Learning Engineer at Reddit, Inc.
Seattle, Washington, United States
Summary
👤
Senior🎓
Top SchoolMatias Grioni is a Senior Machine Learning Engineer based in Seattle with 11 years of experience building low-latency, large-scale systems and production ML for high-traffic products. He spent four years at Microsoft optimizing Bing’s ranking stack—designing traffic management algorithms, reducing tail latency, and implementing native C++ tooling to debug concurrency and memory corruption issues. Now at Reddit he applies that systems-first mindset to personalized home feed ranking, combining deep NLP interest with practical engineering for reliability and performance. His background spans end-to-end ML platform changes, CI/DevOps improvements, and applied computational linguistics from academic research, giving him a unique lens on both model quality and operational robustness. Colleagues rely on him for pragmatic architecture choices that bridge cutting-edge ML techniques with real-world production constraints.
11 years of coding experience
9 years of employment as a software developer
Bachelor of Science - BS Computer Science, Bachelor of Science - BS Computer Science at Ohio State University
French, English, Spanish, Esperanto, Italian
Stackoverflow
306reputation
51kreached
6answers
4questions
Github Skills (107)
conll10
python10
scheduled-tasks10
trigger10
linguistics10
dependency-parsing10
job-scheduler9
javascript9
dotnet9
mimalloc9
nuget9
cron9
kotlin9
dotnet-core9
unicode9
Programming languages (14)
Github contributions (5)
matgrioni/betacode
Apr 2018 - Mar 2020
A small python package to flexibly convert from betacode to unicode and back.
Contributions:3 reviews, 64 commits, 12 PRs in 1 year 11 months
pythonunicodebetacodenlpclassics
matgrioni/euchre-bot
May 2017 - Jan 2018
An AI for the card game euchre using Monte-Carlo Tree Search.
Contributions:219 commits, 27 pushes, 5 branches in 8 months
aimonte-carlo-tree-search
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