Yong-chull Jang
Software Engineer at Brookhaven National Laboratory
New York, New York, United States
Summary
👤
Senior🎓
Top SchoolYong-chull Jang is a software engineer specializing in high-performance scientific computing with a PhD in physics and over a decade of expertise applying first-principles simulations, numerical algorithms, and GPU/parallel optimizations to large-scale scientific problems. He has transitioned academic innovations into production-scale performance wins—reducing communication overheads and achieving order-of-magnitude GPU speedups—while contributing to projects for exascale computing and Monte Carlo lattice field theory. His work blends rigorous statistical analysis and numerical optimization (e.g., tailored BFGS and Krylov methods) with practical engineering at institutions including Meta, Brookhaven, and national labs. A data-driven collaborator and author of nearly 60 peer-reviewed and conference publications, he is equally comfortable tuning low-level kernels and shaping model parameter inference for complex simulations. Based in New York, he brings a rare combination of theoretical physics depth and hands-on software optimization that accelerates both research and production systems.
8 years of coding experience
6 years of employment as a software developer
Doctor of Philosophy - PhD Physics, Doctor of Philosophy - PhD Physics at Seoul National University
Github Skills (10)
avx10
reduction10
mathematical10
parallel-computing9
vectorization9
cluster-computing9
parallel9
cpp9
simd8
hpc7
Programming languages (1)
Github contributions (5)
yongchull/Grid
Dec 2017 - Mar 2024
Contributions:21 pushes, 7 branches in 6 years 4 months
cppparallelc-plus-plusparallel-datamathematical
yongchull/quda
Mar 2024 - Mar 2024
Contributions:1 push in 1 day
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.