Development of Web applications for Stone's pricing and billing area, integrating several internal portals through micro frontends. The technologies used are React, TypeScript and TailwindCSS to create the portals, in addition with Jest and Vitest, React Testing Library and Cypress for automated testing. Maintenance of internal components library, developing new components and evolving existing ones. In addition, I acted as technical leader of the Treasury frontend team of the Stone Co. group, implementing features, prioritizing demands with the product team, developing development and testing guidelines, in addition to cultivating the hard and soft skills of the development team . The technologies used in the Treasury portal are React, TypeScript, React Query and TailwindCSS for development and styling, as well as the use of automated unit and end to end testing with Jest and Vitest, React Testing Library and Cypress.

Development of cognitive solutions for telecommunications clients, using Angular for the frontend application and Node.js with TypeScript for the backend. Creation of automated tests for both the frontend and the backend.

Development of web applications for civil aviation client, using React/Redux/Node.js, focusing on functional programming. The entire deploy process done with IC and automated testing. Migration of critical legacy systems to customers. Development of experiments in IoT and Wearables, generating a case of a smart glove so that visually impaired people can use on art display and thus have a notion of the colors of the works of art, through sounds. Cultivation of knowledge in the teams. Development of soft skills such as facilitation, nonviolent communication, teaching and questioning.

Development of hybrid mobile applications for telecommunications client, using Continuous Integration practices. Automated tests for both backend and frontend. Development of cognitive solutions for internal demands, using Watson.

Development of Web and Mobile applications for IBM's internal areas such as finance. Creating solutions in Analytics, using data visualization and Big Data. Automation of processes in VBA programming language and simplification of standards through cognitive systems, using Watson.

Development of Web solutions for finance, process improvement and automation of financial processes in VBA programming language. Creation of reports in IBM Analytics solutions as well as using D3.js. Creating a web system for predicting financial data through full-stack technology using DB2, Node.js and HTML5, and JQuery, becoming a product sold internally in the company.

Meteo-oceanographic data processing, database creation and maintenance, website development, user experience, helpdesk, and administrative routines.