Rosalyn Tan
Senior Software Engineer at Google
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolRosalyn Tan is a Senior Software Engineer based in San Francisco with 11 years of experience building secure, high-quality developer tooling and mobile SDKs at Google. A University of Notre Dame double-major in Computer Science and Physics, she combines rigorous analytical thinking with pragmatic engineering to solve authentication and app-security challenges across Firebase Auth and App Check. At Google she’s shipped full-stack features and emulator support used by thousands of apps, and contributes to prominent open-source projects like the Firebase iOS and Android SDKs and Firebase CLI. Her work spans iOS and Android client code, back-end tooling, and test-driven improvements—examples include Sign in with Apple nonce handling, App Check integration, and emulator/version management. Colleagues describe her as self-motivated and detail-oriented, with a knack for translating complex security requirements into reliable, well-tested implementations.
11 years of coding experience
6 years of employment as a software developer
High School Diploma, High School Diploma at Greensburg Central Catholic High SchoolBachelor of Science (B.S.), Computer Science and Physics, Bachelor of Science (B.S.), Computer Science and Physics at University of Notre Dame
English, Chinese, Spanish, French
Github Skills (38)
objective-c10
firebase-authentication10
ios10
back-end-development10
user-authentication10
authentication10
typescript10
java10
javas10
sdk10
database-design10
android10
db-schema10
typescript-types10
database-schema10
Programming languages (7)
Github contributions (5)
firebase/firebase-android-sdk
Apr 2021 - Jan 2023
Firebase Android SDK
Role in this project:
Back-end Developer
Back-end DeveloperContributions:56 reviews, 24 commits, 65 PRs in 1 year 8 months
Contributions summary:Rosalyn primarily contributed to the Firebase Android SDK, focusing on the integration of App Check and Play Integrity features. Their work involved modifying the `PersistentConnectionImpl.java` file to support App Check, and re-enabling and updating tests related to these features. The user also updated token refresh rates and implemented platform logging for App Check, enhancing the SDK's security and functionality. They also integrated the new v1 API for App Check.
firebase-remote-configfirebase-databasefirebase-firestorefirebase-functionsdatabase-as-a-service
firebase/firebase-ios-sdk
Jul 2020 - Jan 2023
Firebase SDK for Apple App Development
Role in this project:Mobile Developer (iOS)
Mobile Developer (iOS)Contributions:107 reviews, 77 commits, 78 PRs in 2 years 6 months
Contributions summary:Rosalyn primarily worked on the iOS SDK for Firebase, specifically focusing on the FirebaseAuth component. Their contributions involved implementing features like Sign in with Apple integration, including generating and hashing nonces for security. Additionally, they addressed bugs and refactored code, such as in the context of the OAuth implementation and emulator support. The user's work also involved adding unit tests to enhance the testing coverage.
firebase-databasefirebase-functionsdatabase-as-a-serviceremote-configios
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.