
João Costa developed a suite of features for the ethui/ethui repository, focusing on both user experience and maintainability. He consolidated ABI form components, streamlined UI packages, and introduced a blockchain explorer system with new database and RPC integrations. His work included a global search bar, address autocomplete, and contextual help tooltips, all built with React and TypeScript. He also implemented analytics tracking using Rust and integrated Aptabase for event monitoring. By refactoring components and improving state management, João reduced technical debt and improved onboarding, demonstrating depth across backend, frontend, and system design within a four-month development period.

Month 2025-10: Delivered a cohesive set of front-end features for ethui/ethui focused on analytics, searchability, form UX, contextual help, and update controls. Implemented Analytics Module with Aptabase integration and upgraded the broadcast pipeline to emit analytics messages, enabling better insight into user interactions and performance. Added Global Search Bar with UI refactor to enable quick lookup of transactions and addresses and streamline workflows. Implemented Address Autocomplete across Transfer and Contract forms by enhancing useAllAddresses to fetch and categorize addresses (aliases, wallets), improving accuracy and UX. Introduced Contextual Help Tooltips via a reusable WithHelpTooltip component, starting with guidance in the Local Stacks section. Added Optional Automatic Updates setting with a new UI toggle on General Settings to control update checks, defaulting to enabled. These changes collectively improve user efficiency, data-driven decision making, and maintainability.
Month 2025-10: Delivered a cohesive set of front-end features for ethui/ethui focused on analytics, searchability, form UX, contextual help, and update controls. Implemented Analytics Module with Aptabase integration and upgraded the broadcast pipeline to emit analytics messages, enabling better insight into user interactions and performance. Added Global Search Bar with UI refactor to enable quick lookup of transactions and addresses and streamline workflows. Implemented Address Autocomplete across Transfer and Contract forms by enhancing useAllAddresses to fetch and categorize addresses (aliases, wallets), improving accuracy and UX. Introduced Contextual Help Tooltips via a reusable WithHelpTooltip component, starting with guidance in the Local Stacks section. Added Optional Automatic Updates setting with a new UI toggle on General Settings to control update checks, defaulting to enabled. These changes collectively improve user efficiency, data-driven decision making, and maintainability.
September 2025: Delivered two major features in ethui/ethui: Blockchain Explorer System with new DB/RPC integration, explorer routes/UI, and advanced address/transaction views; App Navigation Enhancements adding top-bar navigation leveraging router history. Focused on stability (route guards, improved empty states) and macOS UI polish. Demonstrated end-to-end feature delivery across backend, frontend, and routing layers, with robust UI components and data presentation.
September 2025: Delivered two major features in ethui/ethui: Blockchain Explorer System with new DB/RPC integration, explorer routes/UI, and advanced address/transaction views; App Navigation Enhancements adding top-bar navigation leveraging router history. Focused on stability (route guards, improved empty states) and macOS UI polish. Demonstrated end-to-end feature delivery across backend, frontend, and routing layers, with robust UI components and data presentation.
July 2025: EthUI delivered two high-impact changes in ethui/ethui: a bug fix to transaction type label mapping and a major UI overhaul for wallet and network switching. These changes improve user-facing transaction labels and streamline wallet/network selection, boosting accuracy and usability.
July 2025: EthUI delivered two high-impact changes in ethui/ethui: a bug fix to transaction type label mapping and a major UI overhaul for wallet and network switching. These changes improve user-facing transaction labels and streamline wallet/network selection, boosting accuracy and usability.
June 2025 – Focused on UI consolidation and dependency cleanup for ethui/ethui, delivering a streamlined ABI form component experience and reducing fragmentation across the UI packages. Key changes include migrating ABI form components to @ethui/ui, removing legacy packages, and updating core forms to use AbiItemFormWithPreview. These changes simplify maintenance, improve build reliability, and accelerate future UI enhancements.
June 2025 – Focused on UI consolidation and dependency cleanup for ethui/ethui, delivering a streamlined ABI form component experience and reducing fragmentation across the UI packages. Key changes include migrating ABI form components to @ethui/ui, removing legacy packages, and updating core forms to use AbiItemFormWithPreview. These changes simplify maintenance, improve build reliability, and accelerate future UI enhancements.
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