George Mueller
Software Engineer at Constructor
São Paulo, Brazil
Summary
🤩
Rockstar🎓
Top SchoolGeorge Mueller is a frontend-focused software engineer with nine years of experience building scalable, accessible web applications and design systems. Based in São Paulo, he has led frontend teams and large projects—from a Stripe-integrated billing system and real-time dashboards to a one-minute onboarding flow—consistently improving performance, reliability, and business metrics. A maintainer and active contributor to Ariakit, he specializes in React, TypeScript, accessibility (WCAG/ARIA), and robust testing practices that drove >90% coverage and significant production stability. George pairs hands-on component-level fixes (focus management, portal behavior, shadow DOM issues) with architectural work like GraphQL/Relay integration and CI/CD optimizations, saving thousands in monthly test costs. He’s known for turning complex developer workflows into intuitive UIs for non-technical users and for advocating inclusive design across products.
9 years of coding experience
7 years of employment as a software developer
Bachelor's degree, Computer Software Engineering, Bachelor's degree, Computer Software Engineering at Centro Universitário Univates
English, Portuguese, Spanish, Italian
Github Skills (15)
accessibility10
ria10
uid10
javascript10
component-kit10
front-end-development10
ui-design10
wai-aria10
react10
popover10
ui-components10
typescript-types9
typescript9
typescripts9
css8
Programming languages (5)
Github contributions (5)
ariakit/ariakit
Mar 2022 - Jan 2023
Toolkit for building accessible web apps with React
Role in this project:
Front-end Developer
Front-end DeveloperContributions:5 reviews, 4 commits, 15 PRs in 9 months
Contributions summary:George primarily focused on improving the accessibility and functionality of Ariakit's React components. They addressed popover behavior and focus management within portals, fixing issues related to focus loops. They also updated examples to demonstrate component usage, and fixed various bugs including issues with hovercard integration within shadow DOM. The user's work included adjustments to component behavior and UI/UX improvements.
reactaccessiblejavascripta11yweb-apps
georgekaran/ticketing
Jun 2020 - Jul 2021
:zap: :credit_card: :ticket: Buy and sell tickets in this microservices based project.
Contributions:528 commits, 487 PRs, 517 pushes in 1 year 1 month
jestzapsellmongodbtdd
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