Marni Brewster
Senior Software Engineer at AllTrails
Philadelphia, Pennsylvania, United States
Summary
👤
Senior🎓
Top SchoolMarni Brewster is a Senior Software Engineer based in Philadelphia with a decade of experience building front-end applications using React and Next.js. She currently ships user-facing features at AllTrails and has held senior engineering roles at Sift and AboveBoard, bringing product-focused UI expertise to mid-stage companies. Her open-source contributions include front-end work on the widely used polkadot-js/apps, where she implemented and refactored account management components—showing comfort with complex, domain-specific UIs. Marni’s background is unusually interdisciplinary: she studied physics and fine art, a combination that surfaces in thoughtful, well-crafted interfaces and a pragmatic approach to problem solving. Comfortable both as a hands-on contributor and a cross-functional collaborator, she excels at turning design intent into reliable, maintainable React code.
10 years of coding experience
7 years of employment as a software developer
Bachelor of Arts - BA, Physics, Fine Art, Bachelor of Arts - BA, Physics, Fine Art at Temple University
English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (10)
uid10
javascript10
front-end-development10
react10
polkadot9
ui-design9
polkadot-js9
wallet8
substrate8
blockchain8
Programming languages (6)
Github contributions (5)
polkadot-js/apps
Sep 2018 - Oct 2018
Basic Polkadot/Substrate UI for interacting with a Polkadot and Substrate node. This is the main user-facing application, allowing access to all features available on Substrate chains.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:5 commits, 3 PRs, 9 comments in 1 month
Contributions summary:Marni primarily focused on front-end development within the Polkadot/Substrate UI. Their contributions involved implementing new UI components, such as the "forgetting modal" and integrating them into existing pages, specifically within the accounts and addresses sections. They refactored existing components and added functionality, including the display of account information within the modal. Furthermore, the user demonstrated a good understanding of React and its associated libraries for building interactive user interfaces.
substrateblockchainwalletchainssubstrate-node
marnibrewster/node-chat-app
Dec 2016 - Jul 2022
Contributions:37 pushes, 1 branch in 5 years 7 months
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