Bianca Danforth
Staff Software Engineer at Mozilla
Pittsburgh, Pennsylvania, United States
Summary
🤩
Rockstar🎓
Top SchoolBianca Danforth is a Staff Software Engineer at Mozilla with a decade of experience building web services and front-end systems, currently focusing on crash ingestion pipelines and Firefox service integrations. Trained as a mechanical engineer (BS/MS, Stanford), she brings a maker’s mindset from museum exhibit and product design into software, blending prototyping rigor with production-grade engineering. Her open-source contributions span full-stack work in Mozilla repos—adding PayPal subscription flows to Firefox Accounts and optimizing visibility detection in content-extraction tooling—demonstrating attention to both UX and backend reliability. Based in Pittsburgh, she mentors cross-functional teams and iterates on performance-sensitive features, often trading elegant algorithms for real-world jank reduction. Notably, her background in physical fabrication and CAD informs a pragmatic approach to system design and documentation that reduces surprises in production.
10 years of coding experience
9 years of employment as a software developer
B.S., Mechanical Engineering, B.S., Mechanical Engineering at Stanford University
Github Skills (18)
paypal10
javascript10
back-end-development10
mysql10
web-performance10
api10
front-end-development10
optimisation10
database-design10
web-optimization10
optimization10
feature-flags9
css9
react8
typescript7
Programming languages (11)
Github contributions (5)
mozilla/fxa
Dec 2020 - Jan 2023
Monorepo for Mozilla Accounts (formerly Firefox Accounts)
Role in this project:
Back-end Developer
Back-end DeveloperContributions:842 reviews, 246 commits, 259 PRs in 2 years 1 month
Contributions summary:Bianca implemented features to store PayPal customer information in a new database table. This work involved creating a new table, adding columns to the database, creating feature flags for the UI, and adding a PayPal button to the subscription page. Further contributions included adding handlers for creating and approving PayPal orders, as well as general configuration for the PayPal API and UI. The user's work directly supported the integration of PayPal payments into the Mozilla FxA platform.
firefoxmonorepo
mozilla/fathom
Jul 2019 - Dec 2019
DEPRECATED - A framework for extracting meaning from web pages
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:38 commits, 14 PRs, 23 pushes in 5 months
Contributions summary:Bianca primarily contributed to the frontend of the project, focusing on improving the visibility of elements within web pages. They refactored and optimized the `isVisible` function, a core component for determining element visibility, by iterating through different strategies to improve performance. The contributions involved debugging and implementing different methods to achieve improved jank reduction while keeping the program correct. Additionally, the user fixed eslint warnings and addressed review feedback.
nlpnatural-language-processingmeaningabandoned
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