Willian R. Email & Phone Number

Sarandi, PR, BR

United States

• [Short term contract]
• Maintaining their current platform written in React Kotlin
• Writing new platform using Next.JS

United States

[Hourly freelance]

Remote

New York, United States

• [Short term contract]
• Optimized web performance for a React project by reducing bundle size by 88.5% and load time by 91.1%.
• Improved interaction time by 67.4%, resulting in a faster and more efficient user experience.Migrated state management from Alt.js to Redux, resulting in improved performance and a streamlined codebase.
• Demonstrated proactive problem-solving skills by identifying possible performance improvements and resolving them.
• Contributed to migrations from… Show more [Short term contract]
• Contributed to migrations from JavaScript to TypeScript, improving code maintainability and enabling better collaboration with the team. Show less

Los Angeles, California, United States

• [Short term contract]
• Developed the redesign of an internal tool used to manage the scooter fleet, making the interface more user-friendly and creating reusable elements.
• Created a new in-progress/completed trip visualization, adding a timeline of when and where the user was showing the location on a map. Also adding the ability to playback the timeline. Also added the estimated speed.
• Recreated a legacy navigation menu using HAML to be more… Show more [Short term contract]
• Recreated a legacy navigation menu using HAML to be more compact and responsive. Show less

Remoto

• Migrated an eCommerce application from React with react-router to Next.js, significantly improving the 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.

Maringá, Paraná, Brasil

• Fixed an issue opened 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 that allows the client to customize the content and sections of each page on demand and create new pages using Strapi as the content.
• Built an automated pipeline that makes code analysis with some… Show more
• Built an automated pipeline that makes code analysis with some notifications to remind the developer to create tests or to update some required files. Show less

Campo Mourão E Região, Brasil

• Built a to-do web and mobile applications for a client using React and React Native, with notifications and email reminders based on the user timezone with Node.js in the back end.
• Worked on an internal tool to track tasks and company resources with React.
• 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 Discrod bot to help the… Show more
• Created a Discrod bot to help the company developers see if their merge requests were approved and tested or not Show less