Hossein Moein is a partner investor and software engineer with over 20 years of experience building high-performance trading, data and analytical infrastructures for quant-driven businesses. He combines hands-on C++/Linux systems design—from tick-by-tick time-series databases at AQR and UBS to risk and trading platforms at Goldman—with leadership roles in data engineering and open-source stewardship. As main designer of the C++ DataFrame project and contributor to prominent package ecosystems like Conan Center and vcpkg, he focuses on keeping high-performance data tooling current and production-ready. He recently transitioned into venture and investing with Composed Ventures while continuing to steward core open-source data libraries. Based in the Village of Brewster, NY, he brings a rare mix of low-level systems craftsmanship, financial-domain expertise, and practical open-source maintenance experience. Colleagues rely on him to assemble teams that translate quantitative ideas into robust, scalable analytical platforms.
8 years of coding experience
10 years of employment as a software developer
MS Computer Science, MS Computer Science at Queens College
Diploma Natural Sciences, Diploma Natural Sciences at Hadaf High School #5 - Tehran
Contributions:10 reviews, 5 commits, 11 PRs in 8 months
Contributions summary:Hossein contributed to the DataFrame package by upgrading it to different versions, including 1.12.0, 1.16.0, 1.18.0, 2.3.0 and 3.4.0. The user's commits involved modifying the `conanfile.py` to update the package metadata, compiler versions, and dependencies. Additional contributions included integrating new features, updating the description, and incorporating new topics related to data analysis and financial engineering.
Contributions:1 review, 9 PRs, 4 comments in 2 years 3 months
Contributions summary:Hossein primarily contributed to the `vcpkg` repository by updating the `DataFrame` port. They focused on upgrading the C++ DataFrame library to newer versions, modifying the `portfile.cmake` to reflect the changes. These updates involved changing SHA512 checksums, updating source references, and running version update commands. The user ensured that the version database was appropriately updated.
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Hossein Moein - Partner Investor at Composed Ventures