Eric Arellano
Software Engineer at IBM
New York, New York, United States
Summary
🤩
Rockstar🎓
Top SchoolEric Arellano is a Software Engineer with a decade of experience building developer-facing infrastructure, currently leading documentation engineering for IBM Quantum and stabilizing docs across the Qiskit ecosystem. He’s a pragmatic polyglot—deep in Python and Rust—who drove major features in the widely used Pants build system (including dependency inference and the Target API) and contributed to reproducible PEX artifacts. Eric combines hands-on systems work (remote execution, gRPC, PyO3 FFI) with UX-minded documentation engineering (accessible Sphinx themes, visual regression testing, and automated deprecation notices) to make complex tooling reliable and discoverable. He mentors interns, speaks about Python+Rust and inclusive open source, and has a track record of migrating large codebases to modern Python practices while improving build and test performance.
10 years of coding experience
9 years of employment as a software developer
Semester Exchange Program, Semester Exchange Program at Tecnológico de MonterreyBachelor of Science (B.S.), Computer Science, 4.0, Bachelor of Science (B.S.), Computer Science, 4.0 at Arizona State UniversityHigh School, 4.0, High School, 4.0 at Catalina Foothills High School
Spanish
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (23)
dependency-management10
git10
python10
command-line-interface10
build-system10
build210
build-automation10
command-line10
buildsrc10
buildr10
cli10
type-check9
type-checking9
remote-execution9
docker8
Programming languages (21)
Github contributions (5)
pantsbuild/pants
Jul 2018 - Dec 2022
The Pants Build System
Role in this project:
Back-end & Build Engineer
Back-end & Build EngineerContributions:2 releases, 5107 reviews, 2770 commits in 4 years 6 months
Contributions summary:Eric primarily worked on improving and expanding the Pants build system. Their contributions include enhancing type checking capabilities for Java and Python codebases, adding and deprecating options for various tools, and improving the build process. The user also focused on streamlining the build process by incorporating enhancements to remote execution and other build system features. They also refactored code and improved documentation for several tools.
pythonprotobufaws-lambdapantsshell
pex-tool/pex
Jan 2019 - Mar 2022
A tool for generating .pex (Python EXecutable) files, lock files and venvs.
Role in this project:Backend Developer
Backend DeveloperContributions:3 releases, 453 reviews, 32 commits in 3 years 2 months
Contributions summary:Eric primarily contributed to the core functionality of the `pex-tool/pex` repository, focusing on bug fixes and improvements to the build and resolution processes. Their work included resolving issues related to regex, interpreter constraints, and reproducible builds. They also added new features, such as the `--no-compile` flag, converting CLI flags to long names, and adding support for lockfiles with no requirements.
executablepexpython
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