Rainer Orth
Senior System Administrator
Greater Bielefeld Area Germany
Summary
🤩
Rockstar🎓
Top SchoolRainer Orth is a Senior System Administrator with 22 years of experience managing infrastructure at the University of Bielefeld and a long-standing expertise in UNIX environments. He combines day-to-day systems operations with deep low-level tooling knowledge, maintaining GCC ports for Solaris, IRIX and Tru64 UNIX and contributing fixes and performance improvements upstream. His work on compiler adaptations—addressing architecture-specific issues like structure packing and data alignment—reflects a rare blend of systems administration and compiler engineering. Based in Greater Bielefeld, Germany, he brings a disciplined scientific background with a Diplom in Chemistry from the University of Cologne. Colleagues benefit from his pragmatic problem-solving and willingness to engage in cross-project bug fixes that improve portability. He is quietly influential in legacy Unix ecosystems, keeping critical toolchains alive for niche architectures.
22 years of coding experience
Dipl.-Chem., Chemistry, Dipl.-Chem., Chemistry at University of CologneAbitur, Physics, Mathematics, History, Latin, Abitur, Physics, Mathematics, History, Latin at Städt. Gymnasium Leichlingen
Github Skills (14)
c1710
x8610
sparc10
solaris10
c1110
x86-6410
gcc10
compiler-development10
assemble9
assembler9
assembly9
code-optimization9
linker9
build-system8
Programming languages (8)
Github contributions (5)
gcc-mirror/gcc
May 2020 - Jan 2023
Role in this project:
Back-end Developer
Back-end DeveloperContributions:11 commits in 2 years 9 months
Contributions summary:Rainer primarily contributed to the GCC compiler, focusing on porting and adapting the compiler for different operating system and architecture combinations. Their work included adding support for specific hardware features and fixing issues related to structure packing and data alignment. The user also addressed build issues and made performance-related enhancements, particularly for the Solaris operating system. Furthermore, the user was involved in addressing bugs and incorporating fixes from upstream projects.
rorth/llvm-project
Feb 2022 - Feb 2025
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:1 PR, 54 pushes, 70 branches in 3 years
llvm-ircompilerstechnologiesclangsubmit
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.