Willian R.

• Built IgorBox as a Progressive Web App (PWA) with a 60fps video editor-like interface featuring audio playback and multiple layers for animatronic show creation • Implemented two-way live preview functionality via websockets with minimal delay, enabling real-time updates on physical devices • Created an innovative solution that eliminated the need for manual show uploads—competitors required manual writing to control boxes, while IgorBox offers live preview, live updates, and OTA updates via internet • Designed an n8n-like visual interface with logical gates and triggers, allowing animators to iterate rapidly on automated animations • Developed debugging tools that accelerated development and facilitated real-time state monitoring across distributed devices

Executed a full-scale migration of the company’s core platforms (Client & Admin) from legacy systems to a modern Next.js architecture. By maintaining the old platform in parallel, I ensured a zero-downtime migration while significantly improving system maintainability and developer velocity.

Later projects focused on internal efficiency, including the development of an AI-driven support assistant for rapid action execution and the native integration of AirCall into the internal admin suite.

• Implemented code splitting and cleaned up the application bundle, resulting in significant performance enhancements
• Successfully optimized web performance for a React project by reducing bundle size by 88.5% and load time by 91.1%
• Improved time to interact by 67.4%, resulting in a faster and more efficient user experience
• Successfully migrated state management from alt.js to Redux, resulting in improved performance and a streamlined codebase
• Demonstrated keen attention to detail and proactive problem-solving skills by identifying possible performance improvements, reporting to the manager, and getting approval to fix it
• Worked to migrate from JavaScript to TypeScript, improving code maintainability, reducing bugs, and enabling better collaboration with the team

• Redesigned a section of the internal operations tool responsible for the entire scooter fleet
• Planned and also developed a new trip details page, adding lots of useful information. The information is now helping customer support analyze customers' requests. The feature includes a trip timeline with the scooter's position on the map, even the ability to replay the trip
• Created a filter based on the proximity of two scooter locations in a trip to prevent two dots from being displayed too close to one another
• Created an estimated speed calculation for a vehicle on a trip
• Developed a new and more compact header to help internal users find what they want inside the system

• Migrated an eCommerce application from React with react-router to Next.js significantly improves performance and SEO optimizations
• Improved the application's performance in updating global states by migrating them from Recoil to Redux
• Refactored an Auth mechanism between a React Native WebView and a React application, which resulted in a seamless experience for the user

• Fixed an issue reported by Google in time to prevent the main website from being removed from Google Search results, avoiding the negative impact on sales that this could represent

• Created an institutional website for the finance branch of the company with Next.js allows the client to customize the content and sections of each page on demand and create new pages using Strapi, the content management system (CMS)

• Built an automated pipeline that makes code analysis with some notifications to remind the developer to create tests or to update some required files

• Built a to-do web and mobile application for a client using React and React Native, with notifications and email reminders based on the user's timezone, with Node.js in the backend

• Worked on an internal tool to track tasks and company resources with React.js

• Worked on a church mobile app built with React Native to manage meetings and dominical events

• Created an application to help pick items from the clients' orders for a smart bakery

• Created a Discord bot to help the company developers see if their merge requests were approved and tested or not