Roy Xu
Software Engineer at SpaceXAI
New York, New York, United States
Summary
🤩
Rockstar🎓
Top SchoolRoy Xu is a software engineer with 11 years of experience specializing in security engineering and backend systems, currently based in New York and working at Cursor. He has built and hardened production security at Plaid and Square, contributing practical cryptographic safeguards such as row-level HMACs to the widely used Keywhiz secrets manager. Comfortable across databases, testing strategies, and secure system design, Roy moves between hands-on engineering and pragmatic architecture to improve data integrity. A New York University computer science graduate, he combines financial-internship experience at Morgan Stanley with a track record of shipping auditable security improvements in large-scale services.
11 years of coding experience
8 years of employment as a software developer
Bachelor of Science (B.S.) Computer Science, Bachelor of Science (B.S.) Computer Science at New York UniversityStuyvesant High School
English
Github Skills (12)
crypto10
it-security10
secret-management10
javas10
secrets-manager10
hmac10
java10
security10
postgresql9
database-design9
test-automation8
sql8
Programming languages (8)
Github contributions (5)
square/keywhiz
Jul 2019 - Aug 2019
A system for distributing and managing secrets
Role in this project:
Back-end Developer & Security Engineer
Back-end Developer & Security EngineerContributions:3 reviews, 15 commits, 17 PRs in 16 days
Contributions summary:Roy primarily focused on enhancing the security and data integrity aspects of the keywhiz project, a secret management system. They introduced row-level HMAC (Hash-based Message Authentication Code) generation and verification across multiple database tables to ensure data consistency. Additionally, the user refactored tests to accommodate the new HMAC implementation and improved the overall security posture by allowing configuration for controlling row_hmac verification behavior. They also adjusted the database setup and testing strategy.
golangkeywhizmanage-secretssecret-managementsecurity
osirislab/vasilisk
Feb 2019 - Dec 2019
Contributions:69 commits in 10 months
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