Describe the role in plain words. Upstream reads everything since 2020 on every open-source project with 50+ stars and ranks the people who actually built, shipped, reviewed and merged the work.
engineers with merged work
3.4M
engineers with merged work
projects with 50+ stars
470k
projects with 50+ stars
pull requests
40.2M
pull requests
code reviews
77.7M
code reviews
Evidence, not profiles
Every match points to the repos and the pull requests, reviews and merges behind it. Nobody has to fill in a form.
Role patterns
Maintainers merge and review. Shippers land pull requests. Upstream tells them apart, because on big projects a merge is the maintainer, not the author.
Outreach that cites the work
Drafts reference the person's own repos, so the first line proves you looked.