Jeroen Ooms
Utrecht, Utrecht, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolJeroen Ooms is a staff research engineer at rOpenSci and a long-standing member of the tidyverse team with 16 years of experience building reliable tooling for reproducible data science. He specializes in backend systems, build automation, and cross-platform compatibility—regularly fixing compiler warnings, Windows build issues, and packaging workflows across projects like readxl, sf, and the MongoDB C driver. Jeroen also leads R-universe and contributes DevOps expertise to community infrastructure such as GitHub Actions, MSYS2, Homebrew, and Travis CI to ensure R projects build and run smoothly everywhere. His work spans C and R codebases and often focuses on pragmatic portability fixes that quietly save other developers countless hours. Based in Utrecht and educated at UCLA, he combines research-oriented rigor with production-grade engineering. An underappreciated strength is his knack for improving developer experience across ecosystems, from static docs (pkgdown) to automated CI/CD for R.
16 years of coding experience
3.9, 3.9 at University of California, Los Angeles
Stackoverflow
32,488reputation
3.4mreached
234answers
207questions
authentication
top-5%
sorting
top-5%
r
top-1%
google-chrome
top-5%
http
top-5%
regex
top-5%
Github Skills (72)
package-management10
utf10
windows10
gdal10
msys10
bash10
cmake10
c1110
c1710
automation10
excel10
build-automation10
markdown10
r10
ftp10
Programming languages (22)
Github contributions (5)
travis-ci/travis-build
Jun 2016 - Sep 2020
.travis.yml => build.sh converter
Role in this project:
DevOps Engineer & R Developer
DevOps Engineer & R DeveloperContributions:1 review, 27 commits, 23 PRs in 4 years 3 months
Contributions summary:Jeroen primarily contributed to the automation and configuration of the Travis CI build environment for R projects. Their work included adding options to disable Homebrew, configuring Fortran installation, and modifying the build process to accommodate different R versions and operating systems. Additionally, the user addressed issues related to package dependencies, repository configurations, and updated URLs for MacOS builds.
rubytravisymltravis-ciconverter
r-lib/devtools
Jun 2015 - Dec 2018
Tools to make an R developer's life easier
Role in this project:Back-end Developer
Back-end DeveloperContributions:12 commits, 6 PRs, 26 comments in 3 years 6 months
Contributions summary:Jeroen primarily focused on refactoring and improving the `devtools` package's interaction with external tools and services. They migrated the code from `RCurl` to `curl` for FTP uploads, adding features like verbose output. The user then introduced a spell-checking feature for documentation and adjusted settings related to package releases, highlighting their contribution to enhancing package quality and maintainability. Their efforts streamlined the package build and release processes and improved its overall robustness.
r-packagepackage-creationrstatslifer
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