Jean – React, Typescript, Node.js

A U.S.-based fintech company offering a family banking platform that empowers parents to manage allowances while teaching children financial literacy through debit cards and investing tools.

• Developed and maintained high-performance React/Next.js web applications used by thousands of families.
• Led UI migrations from Emotion to Tailwind to improve design consistency and performance.
• Built reusable component libraries and optimized rendering performance using React best practices.
• Collaborated cross-functionally with Product, Design, and Backend teams to ship scalable features.

PayPal is a global fintech company that enables secure digital payments and online money transfers for individuals and businesses worldwide.

Created, kept, updated, and deployed UI components and pages in collaboration with a team across the world, keeping communication with other teams to get features ready as soon as possible. Projects:

• Shopping Hub: developed "Deals and Offers" experiences, a custom SSR app using React.js, GraphQL, Typescript, and custom PayPal libraries.
• Shopping Growth: created this initiative from scratch. It was a single-page application using React.js, TypeScript, and custom PayPal libraries.
• Xoom: worked on a PayPal service that allowed users to send money to friends and family around the world, with custom SSR to render an SPA on the client.

A custom software project for a large corporate challenge race.

Led the stack refactoring of a legacy app with a team, responsible for getting frontend modules ready from scratch to production, deprecating the legacy code.

• Developed a React.js frontend using Redux, TypeScript, Material UI, React Query, and React Hook Form; wrote unit tests with Jest.
• Built a Node.js backend deployed on AWS Lambda with PostgreSQL using Sequelize ORM.
• Maintained CI/CD pipelines using Jenkins.

A company developing custom software solutions for the clients.

Created, developed, and maintained custom React.js apps, leading the development team to features/fixes from scratch to code production, understanding the Product Manager's requirements before coding.

Projects: Tus10Segundos:

• Developed and maintained an SSR e-commerce platform using React.js (Next.js), Redux, Apollo Client, Firebase, and Strapi API.
• Integrated PayPal API and Conekta API to enable secure online payments.
• Built and enhanced admin and client dashboard SPAs using Next.js, React.js, Apollo Client, and Firebase.
• Developed a scalable backend using Node.js and TypeScript on AWS, working with DynamoDB and later migrating to MongoDB using AWS Lambda.
• Implemented and maintained CI/CD pipelines using GitHub Actions.
• Configured and managed AWS infrastructure using CloudFormation, Amplify, CloudFront, S3, and API Gateway. Mi Priv:
• Developed an SSR social networking application using Next.js, Redux, Apollo Client, Firebase, and Strapi API.
• Built a dashboard SPA using React.js and Apollo Client.
• Developed a backend application using Node.js, TypeScript, and Fastify.
• Implemented JWT-based authentication and authorization.