Breno Polanski
Front End Engineer at LlamaCorp
Brazil
Summary
🤩
Rockstar🎓
Top SchoolBreno Polanski is a Front End Engineer with 13 years of experience building responsive web interfaces and full-stack features from Brazil, currently contributing to LlamaCorp and notable open-source projects like DefiLlama. He specializes in JavaScript/TypeScript across React, Vue and Angular ecosystems, plus CSS systems (Tailwind, Chakra, styled-components) and modern build tooling, with a strong focus on mobile-first design and testable patterns. His contributions span high-impact UX work—charts, SEO, localization and analytics integration—demonstrating an ability to improve both developer experience and end-user flows. Breno pairs production experience in crypto and analytics products with mentoring and community work (Udacity mentor/reviewer and active OSS maintainer), reflecting a continuous pursuit of better practices and knowledge sharing.
13 years of coding experience
9 years of employment as a software developer
Bachelor's Degree, Information Systems, Bachelor's Degree, Information Systems at Facisa - Faculdade de Ciências Sociais e Aplicadas
Portuguese, English
Stackoverflow
88reputation
4kreached
7answers
1question
Github Skills (41)
javascript10
component-development10
css10
internationalization10
nextjs10
user-interface10
ui-design10
tooltip10
datatip10
qtip10
uid10
tailwindcss10
front-end-development10
vue10
html10
Programming languages (12)
Github contributions (5)
OSBI/saiku
Oct 2015 - Jan 2020
Saiku Analytics - The Worlds Greatest Open Source OLAP Browser
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:254 commits, 12 PRs, 234 pushes in 4 years 3 months
Contributions summary:Breno primarily contributed to the front-end of the Saiku Analytics project, focusing on improvements to the user interface. Their work included implementing internationalization support by loading language files based on URL parameters and settings. They also made several changes to the chart editor and table rendering components. The user was also involved in updating the login form and implementing various visual features.
analyticsbrowserjavascriptgreatestolap
ArkEcosystem/desktop-wallet
Feb 2020 - Dec 2020
:computer: Archived, please use ARKVault
Role in this project:Front-end Developer
Front-end DeveloperContributions:9 reviews, 237 commits, 265 PRs in 10 months
Contributions summary:Breno primarily contributed to the front-end of the desktop wallet. Their commits focused on the implementation of UI elements, including the creation of new components and the modification of existing ones. They also worked on localization efforts by translating labels and key values. Furthermore, the user made adjustments to various UI features, such as styling and layout tweaks to enhance the user experience.
electronwalletark-desktopdesktop-walletmulti-platform
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