David Lefaive is a software engineer with seven years of experience building user-centric web applications and front-end features, blending applied mathematics rigor from San Jose State with practical engineering. Based in Arvada, Colorado, he has contributed to notable open-source projects like OpenRefine, improving UI components, dialogs, and CSS to make messy-data workflows smoother. His work on a React-based Genshin Impact wish simulator demonstrates attention to detail in accuracy-sensitive client logic, implementing soft-pity mechanics and fixing complex pity counters. Comfortable across full-stack tasks and end-to-end testing, he combines a passion for polished UX with a knack for debugging subtle state and UI issues.
OpenRefine is a free, open source power tool for working with messy data and improving it
Role in this project:
Full-stack Developer
Contributions:135 reviews, 152 commits, 291 PRs in 11 months
Contributions summary:David contributed to OpenRefine's front-end development by modifying JavaScript code for various UI components, including dialogs, menus, and facets. Their work involved implementing new features like adding and removing buttons for column selection and improving the usability of existing features, such as menu item displays. The changes focused on enhancing the user experience and the functionality of the application's interface. They also addressed bugs and improved the CSS of dialogs.
A React web application to simulate Genshin Impact gacha in the browser
Role in this project:
Front-end Developer
Contributions:1 review, 36 commits, 7 PRs in 1 month
Contributions summary:David primarily contributed to implementing and refining features within the Genshin Impact wish simulator, a React web application. They focused on adding soft pity mechanics to various gacha banners, ensuring accurate simulation of in-game mechanics. Their work also involved fixing counter reset logic for 5-star pulls and correcting the 4-star pity logic, directly impacting the simulation's accuracy and user experience. They also focused on implementing custom character positioning in the wish results.
reactgenshin-impactgenshingenshinimpactgacha
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