Grey Baker
Visiting Partner at Y Combinator
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolGrey Baker is a seasoned product and engineering leader with 14 years of experience building developer tools, security and payments products from startup to scale. As co-founder of Dependabot and Pincites and an early GoCardless leader, he blends founder grit with enterprise impact—helping grow systems that moved millions of users and drove significant ARR. He led GitHub’s supply chain security and scanning efforts and later ran dev tools at Figma, pairing product strategy with deep backend engineering chops. An active open-source contributor across high-profile projects (pipenv, bundler, Rails, Octokit), he focuses on reliability, dependency management, and security hardening. Based in San Francisco with an MPhil in Economics and a BA in Mathematics from Cambridge, Grey is equally comfortable shipping code-level fixes and shaping product roadmaps.
14 years of coding experience
12 years of employment as a software developer
Master of Philosophy (MPhil), Economics, Master of Philosophy (MPhil), Economics at University of Cambridge
Stackoverflow
796reputation
139kreached
7answers
0questions
rubygems
top-5%
Github Skills (63)
dependency-management10
application-framework10
ruby-rails10
github-ci10
javascript10
dependabot10
octokit10
data-validation10
pytest10
github10
python10
apidoc10
pipenv10
rubygems10
webhooks10
Programming languages (33)
Github contributions (5)
gocardless/statesman
Jun 2014 - Aug 2019
A statesmanlike state machine library.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:123 commits, 67 PRs, 125 pushes in 5 years 3 months
Contributions summary:Grey primarily worked on the core logic of the state machine library. They focused on addressing race conditions, renaming errors, and implementing a feature to automatically retry conflicting transitions. Their contributions span across multiple files, including adapter and exception classes, indicating a deep understanding of the library's internal workings and error handling mechanisms. The user also updated testing dependencies.
state-managementstate-machine
nodejs/security-wg
Apr 2018 - Apr 2018
Node.js Ecosystem Security Working Group
Role in this project:Back-end Developer
Back-end DeveloperContributions:11 commits, 9 PRs, 24 comments in 17 days
Contributions summary:Grey primarily focused on improving the data validation process within the Node.js security working group's tools. They implemented changes to enforce data formats, specifically for dates, and also adjusted the validation rules to improve data integrity. Furthermore, they refactored existing code to remove unnecessary fields and replaced empty strings with null values. These changes ultimately enhanced data quality and adherence to established standards within the project.
statelessnode-jssecurityjavascriptnodejs
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