Quim Castellà
Technical Founder at Stealth AI Startup
New York, New York, United States
Summary
👤
Senior🎓
Top SchoolQuim Castellà is a technical founder and machine learning leader with 13 years of experience building large-scale recommender systems and data platforms, most recently founding a stealth AI startup in New York. He led and scaled Instagram’s Reels ranking organization from prototype to multi-team production, authored patents on recommendation algorithms, and drove cross-functional delivery that improved relevance using large-scale models. With an MSc in Artificial Intelligence and a licentiate in Mathematics, he blends deep theoretical grounding with hands-on engineering—having designed high-throughput services handling billions of records and real-time ML that reduced false positives and churn in prior roles. Known for hiring and growing engineers to staff and manager levels, he thrives at the intersection of research, product, and infrastructure, often finding pragmatic algorithmic solutions to messy production problems.
13 years of coding experience
11 years of employment as a software developer
MSc (with distinction) Artificial Intelligence, MSc (with distinction) Artificial Intelligence at The University of EdinburghUPC Universitat Politècnica de Catalunya
Github Skills (1)
nlp6
Programming languages (1)
Github contributions (5)
quimcastella/wordstorms
Dec 2012 - May 2014
Contributions:7 commits in 1 year 5 months
nlpcloudsword-clouds
quimcastella/vim
Oct 2015 - Dec 2022
Contributions:3 pushes, 1 branch in 7 years 3 months
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