Sam Lijin
Software Engineer at Boundary (YC W23)
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolSam Lijin is a software engineer with 11 years of experience building reliable, user-focused systems across startups and large tech companies. Based in San Francisco, he has shipped product and security features at Trunk, contributed to Cloud Firestore and identity reliability at Google, and now works on engineering at Boundary (YC W23). He specializes in improving developer and operator UX—having led Trunk Check’s web and SaaS experiences and driven reliability work in production at Google. Early roles at Formlabs show a practical bent for reducing costs and improving manufacturing QA through tooling and automation. Sam favors hands-on problem solving and says simply “I like making things,” a pattern reflected in a career that balances product delivery, infrastructure, and security. He only accepts LinkedIn requests from people he’s met in person, signaling a preference for direct professional connections.
11 years of coding experience
7 years of employment as a software developer
B.S. Computer Science Mathematics Political Science, B.S. Computer Science Mathematics Political Science at Vanderbilt UniversityStuyvesant High School
English, Spanish
Stackoverflow
1,226reputation
48kreached
35answers
6questions
Github Skills (200)
json-schema10
trunk10
cffi10
cpp10
baml10
schema10
openapi10
api10
credentials10
kotlin-android10
json10
schema-validation10
bazel10
apt10
css10
Programming languages (18)
Github contributions (5)
sxlijin/git-scm.com
Feb 2017 - Jan 2022
The git-scm.com website. Note that this repository is only for the website; issues with git itself should go to https://git-scm.com/community.
Contributions:10 pushes, 6 branches in 5 years
git-scmscm
sxlijin/sxlijin.github.io
Sep 2016 - Mar 2025
my github page!
Contributions:10 PRs, 138 pushes, 11 branches in 8 years 8 months
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