Sadie Braun
Frontend Developer at Cardmarket.com
Berlin, Germany
Summary
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SeniorSadie Braun is a front-end developer based in Berlin with 11 years of professional experience and a 15-year history working across client and server environments, from DOM and web workers to Node and server-side rendering. She favors front-end work driven by strong UX instincts and a preference for building reusable platforms that empower other developers and end users. Proficient in modern vanilla JavaScript and TypeScript, she routinely ships React-based experiences and brings a pragmatic focus on accessibility and rigorous testing to keep software reliable. Her career spans notable roles at Zalando, HelloFresh, and Cardmarket, showing experience scaling interfaces for large consumer and e‑commerce products. Beyond shipping features she contributes to community health around her projects, pairing product-minded thinking with hands-on implementation.
11 years of coding experience
12 years of employment as a software developer
German, English, Spanish, Japanese
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (126)
dom-element10
testing10
material-ui10
javascript10
react-components10
background-image10
mui10
angular10
sneakers10
typescript10
vue10
svelte10
react-native10
webpack10
material-design10
Programming languages (6)
Github contributions (5)
mousemke/testable-reactions
Dec 2016 - Apr 2018
Contributions:26 PRs, 47 pushes, 12 branches in 1 year 4 months
babelreactreact-projectboilerplateeslint
UseAllFive/true-visibility
Feb 2016 - Jul 2024
Checks if a DOM element is truly visible
Contributions:2 PRs in 8 years 5 months
domchecksdom-elementvisible
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