William Rozin Gaspar
Frontend Developer
Joinville, Santa Catarina, Brazil
Summary
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SeniorWilliam Gaspar is a Senior Frontend Developer with over 10 years of experience building reusable UI systems and web applications from Santa Catarina, Brazil. He helped architect a service order management web solution and created a Core Components approach and an NPM-published Design System (flipper-ui) that powered multiple projects. Since 2020 he has been at Zup, where he broadened his stack with AngularJS, mentored colleagues and teams, and built a browser-based prototyping tool to compensate for the temporary absence of UX resources. He favors simple, efficient solutions and has a track record of shipping practical developer-facing tools that improve collaboration and productivity. Trained in Systems Information and technical IT, he blends hands-on implementation with a focus on reuse and mentoring. Notably, he turns design systems into tangible products—both as libraries and interactive tooling—rather than only static style guides.
10 years of coding experience
Github Skills (16)
react9
frontend9
typescript8
ui-toolkit7
cli6
que6
command-line-tool5
sem3
javascript3
sentry2
queue2
nodejs2
zap2
sql-parser2
react-native1
Programming languages (4)
Github contributions (5)
williamrozin/witcherbook
Sep 2018 - Jul 2020
The Witcher social network
Contributions:6 PRs, 9 pushes, 2 branches in 1 year 10 months
social-networksocial-mediawitcher
williamrozin/shopplist-server
Aug 2017 - Dec 2017
Contributions:8 PRs, 38 pushes, 7 branches in 3 months
djangojavacode-serverdsi
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