Rhys Ulerich
Quantitative Developer Lead
New Providence, New Jersey, United States
Summary
👤
Senior🎓
Top SchoolRhys Ulerich is a quantitative developer lead with 17 years of experience building high-assurance trading and research systems at firms including Two Sigma and Balyasny. He combines a Ph.D. in computational science with hands-on software engineering—authoring production Java trading platforms, Python model pipelines, and MPI-parallel Fortran simulation code early in his career. At Two Sigma he accelerated hundreds of model releases, led a hybrid research/engineering team, and scaled automated refitting infrastructure used across 1,000+ pipelines. He values correctness, testability, and fail-safe design, with practical experience optimizing execution and borrow costs alongside deep-learning-based alpha research. An active contributor to build-system tooling, his work on autoconf-archive reflects attention to cross-language build correctness and scientific library integration like HDF5. Based in New Providence, NJ, he blends rigorous research instincts with an operator’s focus on shipping reliable, auditable systems.
17 years of coding experience
16 years of employment as a software developer
Doctor of Philosophy (Ph.D.) Computational Science Engineering and Mathematics, Doctor of Philosophy (Ph.D.) Computational Science Engineering and Mathematics at The University of Texas at AustinB.S. Mechanical Engineering & Computer Science, B.S. Mechanical Engineering & Computer Science at Penn State University
Stackoverflow
1,282reputation
126kreached
22answers
28questions
Github Skills (15)
autoconf10
autoconfiguration10
system-programming9
hdf9
fortran8
c178
c118
portability7
whitespace6
linux6
boost6
automake6
libtool6
trim6
autotools6
Programming languages (14)
Github contributions (5)
autoconf-archive/autoconf-archive
Oct 2010 - Nov 2011
A mirror of the GNU Autoconf Archive, a collection of more than 500 macros for GNU Autoconf that have been contributed as free software by friendly supporters of the cause from all over the Internet.
Role in this project:
Backend Developer
Backend DeveloperContributions:11 commits, 1 comment in 1 year 1 month
Contributions summary:Rhys primarily contributed to the autoconf-archive repository by enhancing and extending existing macros. These changes include adding new functionality to existing macros, improving the handling of compiler flags, and incorporating Fortran wrapper scripts for HDF5. Furthermore, the user's commits focus on improving the detection of compiler options and integrating support for libraries like HDF5, which simplifies configuration and dependency management within the project. The commits demonstrate a strong understanding of autoconf and its role in build systems.
unixmacrossystem-programmingportabilitycause
RhysU/ndarray
Mar 2019 - Jan 2022
Contributions:119 commits, 69 pushes, 1 branch in 2 years 10 months
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