Matthew Dapena-tretter
Staff Engineer at Bandcamp
California, United States
Summary
🤩
Rockstar🎓
Top SchoolMatthew Dapena-tretter is a seasoned Staff Engineer based in California with 15 years building reliable, user-focused web and UI systems for companies like Facebook and WhatsApp and now Bandcamp. He blends full‑stack expertise with a strong front-end focus—contributing to high-profile open-source projects such as React, Atom, and Sentry—often improving developer ergonomics, accessibility, and diagnostics UX. His work spans type-safety and tooling (flow-typed, immutable-js), component-level React improvements, and test automation, showing a practical balance of shipping features and preventing regressions. A math- and music-trained thinker (B.S. in Music and Mathematics), he brings attention to elegant abstractions and edge cases, evidenced by nuanced fixes to DOM property handling and RxJS type definitions. Colleagues rely on him to refactor brittle codepaths, design resilient UI behaviors, and add thoughtful tests that keep large codebases healthy.
15 years of coding experience
9 years of employment as a software developer
B.S., Music, Mathematics, B.S., Music, Mathematics at Dickinson College
Stackoverflow
3,883reputation
215kreached
38answers
11questions
django
top-5%
Github Skills (66)
atom-editor10
url-routing10
flow-control10
python10
testing10
svg10
markdown10
libstdc10
javascript10
text-manipulation10
flow-typed10
editor10
uid10
sdk10
front-end-development10
Programming languages (17)
Github contributions (5)
matthewwithanm/python-markdownify
Jun 2012 - Aug 2020
Convert HTML to Markdown
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:55 commits, 5 PRs, 3 pushes in 8 years 2 months
Contributions summary:Matthew primarily contributed to implementing features for converting HTML to Markdown. They added support for various HTML tags like `h1`, `h2`, `em`, `i`, `b`, `strong`, `ul`, `li`, `p`, `br`, `blockquote`, and `a`. Furthermore, the user refactored code and added tests to ensure proper conversions and functionality, and also added options to customize the conversion process.
markdown
facebookarchive/atom-ide-ui
May 2017 - Oct 2018
A collection of user interfaces for Atom IDE.
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:1 release, 253 commits, 6 PRs in 1 year 5 months
Contributions summary:Matthew primarily focused on improving the user interface of the Atom IDE UI package, specifically around the diagnostics feature. Their work involved refactoring code, renaming components, and restructuring UI elements related to displaying and managing diagnostics, including creating a settings modal. The user also made enhancements to the table component, improving performance and features. Further, they added the capability to filter diagnostics.
ide
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