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Breno Polanski

PROFILE

Breno Polanski

Breno Polanski contributed to DefiLlama’s defillama-app and dimension-adapters repositories, focusing on UI/UX enhancements, DeFi data integrations, and code maintainability. He delivered features such as improved navigation, dashboard sharing, and mobile usability, using React, TypeScript, and CSS to ensure responsive, accessible interfaces. On the backend, Breno implemented and refactored adapters for fee tracking, revenue estimation, and cross-chain data aggregation, leveraging event-driven data capture and smart contract interaction to improve data accuracy and transparency. His work emphasized maintainable code, clear documentation, and robust onboarding, resulting in more reliable user experiences and streamlined contributor workflows across the platform.

Overall Statistics

Feature vs Bugs

72%Features

Repository Contributions

44Total
Bugs
7
Commits
44
Features
18
Lines of code
2,310
Activity Months6

Work History

January 2026

3 Commits • 3 Features

Jan 1, 2026

January 2026 monthly summary for DefiLlama/dimension-adapters: Delivered three new adapters enabling revenue estimation, yield distribution, and volume tracking across staking, zero-fee distribution, and perpetuals data. Implementations include a GETH Fees Adapter for staking revenue, a Reservoir Protocol Fees Adapter that distributes yield without retaining fees, and an Arbitrum Perpetual Volume Adapter with event handling for position changes. No major bugs reported this period. Impact: Improved business visibility into staking economics and protocol revenue, transparent distribution of yields to token holders, and more reliable cross-chain perpetual volume data. Enhanced maintainability through refactoring and clearer maintenance boundaries for adapters. Technologies/skills demonstrated: adapter architecture and integration, event-driven data capture, cross-chain data modeling, refactoring for maintainability, and secure/transparent fee modeling across DeFi protocols.

December 2025

14 Commits • 6 Features

Dec 1, 2025

December 2025 monthly performance summary for DefiLlama: delivered key data-adapter upgrades, expanded fee tracking capabilities, and lifecycle metadata improvements across dimension-adapters and DefiLlama-Adapters. Focused on business value: improved data accuracy, cross-chain volume tracking, and reliable fee reporting; supported product transitions and deprecations with metadata fields.

November 2025

8 Commits • 3 Features

Nov 1, 2025

November 2025 monthly summary for DefiLlama/defillama-app focusing on user experience improvements, code quality, and onboarding documentation. Delivered UX enhancements across landing/raises pages with improved iOS/Safari video handling, drag behavior restrictions on pinned pages, a mailto support link, and consistent icon sizing on Sheets. Implemented performance and quality improvements including selective lodash imports to reduce bundle size, TypeScript migration of localStorage utilities, and ESLint conflicts resolution for TS files. Updated onboarding docs to streamline local setup and contribute more efficiently. These efforts reduced runtime frictions, improved cross-platform compatibility, and strengthened code safety and maintainability, delivering tangible business value through faster, more reliable experiences and easier contributor onboarding.

October 2025

16 Commits • 5 Features

Oct 1, 2025

October 2025 — Delivered a user-focused set of UI/UX refinements and reliability improvements for DefiLlama/defillama-app, driving business value through smoother navigation, branding consistency, and enhanced sharing capabilities, while strengthening mobile usability and accessibility. Key deliverables spanned navigation/header UX overhaul, branding standardization, dashboard sharing enhancements, EmbedChart URL usability improvements, and sign-in/up usability enhancements. Several mobile-focused bugs were fixed to improve small-screen experience. Overall impact: smoother user flow, higher engagement potential, and a maintainable codebase foundation. Technologies demonstrated include React component refinements, CSS custom properties, responsive flex layouts, and social-media integrations.

August 2025

2 Commits • 1 Features

Aug 1, 2025

Aug 2025 monthly summary for DefiLlama/defillama-app focused on UI polish and reliability improvements. Delivered two high-impact UI changes and fixed a visibility bug, driving clearer user communications and more reliable interactions without altering core functionality.

July 2025

1 Commits

Jul 1, 2025

July 2025 monthly summary for DefiLlama/defillama-app focusing on key accomplishments, major bug fixes, overall impact, and technologies demonstrated. The primary deliverable this month was a UI stability improvement: fixed the CSV button text overflow to prevent wrapping and ensure the label remains readable as a single line across sizes. This bug fix (commit 77b3f6d33f032c4639a990be520025af3aae6adf) enhances UI consistency and reduces user confusion during CSV export actions. The change aligns with UX quality goals and maintains a clean, predictable interface in production. Impact and accomplishments: Improves readability and consistency of action labels, contributing to a more reliable and professional user experience. The work demonstrates careful UI debugging, attention to edge cases in small viewports, and clear, commit-driven development with traceable changes. Technologies/skills demonstrated: frontend UI bug fixing, UI/UX consistency, regression awareness, and precise commit documentation with traceable references.

Activity

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Quality Metrics

Correctness92.4%
Maintainability87.8%
Architecture86.0%
Performance87.8%
AI Usage22.8%

Skills & Technologies

Programming Languages

CSSHTMLJavaScriptMarkdownReactTypeScript

Technical Skills

API IntegrationAPI integrationCSSCode MaintenanceDeFiDeFi protocolsESLintFront End DevelopmentFront-end DevelopmentFrontend DevelopmentGraphQLJavaScriptReactRefactoringResponsive Design

Repositories Contributed To

3 repos

Overview of all repositories you've contributed to across your timeline

DefiLlama/defillama-app

Jul 2025 Nov 2025
4 Months active

Languages Used

TypeScriptHTMLJavaScriptCSSReactMarkdown

Technical Skills

Front End DevelopmentUI DevelopmentFrontend DevelopmentReactUI/UXAPI Integration

DefiLlama/dimension-adapters

Dec 2025 Jan 2026
2 Months active

Languages Used

TypeScript

Technical Skills

API integrationDeFiGraphQLTypeScriptbackend developmentblockchain development

DefiLlama/DefiLlama-Adapters

Dec 2025 Dec 2025
1 Month active

Languages Used

JavaScript

Technical Skills

JavaScriptbackend development

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