Daniel Chen
Software Developer at IBM
Markham, Ontario, Canada
Summary
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RockstarDaniel Chen is a software developer with nine years of experience specializing in Fortran compiler front-end development at IBM, where he contributes to the XL Fortran toolchain. He is an active open-source contributor to the LLVM project’s Flang compiler, addressing platform-specific challenges such as PowerPC/AIX data types, big-endian test fixes, and MLIR/build regressions. Based in Markham, Ontario, he combines deep language and toolchain expertise with practical build-system troubleshooting across Unix-like platforms. Notably, his work demonstrates an uncommon blend of low-level systems awareness and standards-level involvement as a Fortran Standard Representative.
9 years of coding experience
Github Skills (9)
fortran10
aix10
compiler-development10
powerpc9
mlr8
cmake7
c-language6
cprogramming-language6
openmp5
Programming languages (4)
Github contributions (5)
llvm/llvm-project
Nov 2022 - May 2026
The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.
Role in this project:
Backend Developer
Backend DeveloperContributions:193 reviews, 86 PRs, 37 pushes in 3 years 5 months
Contributions summary:Daniel primarily contributed to the Flang compiler project, specifically focusing on the Fortran language. Their work included defining and adapting data types for PowerPC and AIX systems to ensure correct behavior. They also addressed build issues, such as an MLIR regression and linking pthread on AIX, demonstrating an understanding of the build process and platform-specific configurations. Furthermore, the user fixed a test case on AIX to handle big-endian systems correctly.
compilerllvmtoolchain
DanielCChen/llvm-project
Sep 2023 - Jul 2026
The LLVM Project is a collection of modular and reusable compiler and toolchain technologies. Note: the repository does not accept github pull requests at this moment. Please submit your patches at http://reviews.llvm.org.
Contributions:474 pushes, 83 branches, 1 comment in 2 years 10 months
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