Juan David Roa Valencia Email & Phone Number

Whitewater, Wi, Us

Mentored 20+ students in two Python programming courses per term over two years, helping to enhance their understanding and performance in programming projects.Graded and reviewed 500+ programming labs and IT management assignments, providing constructive feedback to support student learning and improvement.

Montevideo, Uy

Developed a high-performance login widget using the Native Web Components API, seamlessly integrated into React and Vue projects to standardize user authentication across platforms.Reduced technical debt by 60\% by creating a cross-framework solution that eliminated redundant code in micro-frontends, enabling faster deployment and maintenance of new projects.

San Francisco, Ca, Us

Rebuilt and optimized the legacy AngularJS UI system by developing a new Frontend platform with ReactJS \& NextJS, reducing page load times by 80\% through server-side rendering and significantly improving user engagement.Enhanced microservices infrastructure by resolving critical bugs in systems built with Node.js, PHP, Python, and Elixir, and ensured code quality through comprehensive code reviews and pull request approvals.

Bogotá, Bogotá, Co

Designed and implemented a PostgreSQL database and backend architecture using Ruby on Rails and Node.js, optimizing API integrations with third-party providers, which streamlined health insurance rate calculations and reduced operational costs.Led three cross-functional teams by reviewing and approving pull requests for codebases in Ruby, JavaScript, and PHP, ensuring high code quality and adherence to best practices.Automated CI/CD pipelines for AWS deployments using Docker and Jenkins, reducing deployment times and improving system reliability.Managed the first release of the VIGPRO mobile application on iOS and Android, enhancing user experience and expanding market reach.

Instructed ReactJS courses focusing on Redux state management and mobile-first design principles, mentoring students in modern web development practices.Led React Native workshops utilizing the NASA API, guiding participants in building interactive search galleries for astronomy objects.

Bogotá, Co

Led the development of a high-performance e-commerce platform using NextJS and Redux, significantly boosting online sales for La 14 supermarket chain in Colombia.Created and integrated dynamic UI components for Cardash startup, enhancing the user experience through React and GraphQL.

Newark, Delaware, Us

Developed and optimized Material Design web components for the Pulpo WMS platform using React, Redux, and ImmutableJS, enhancing user interface performance and responsiveness.

Consultant at Gearsis S.A.S

Máster’S In Computer Science, Computer Science

Engineer'S Degree, Systems Engineering

Engineer'S Degree, Materials Engineering