- Contributed significantly to product discussions, refinements and planning, ensuring alignment with business goals and user needs.- Developed ETL (Extract, Transform, Load) functionalities using Golang, creating dynamic and configurable data extraction and loading processes.- Implemented various features, performance and UX improvements on the frontend, mainly using React, React Query, Redux and MUI. Features such as interactive and fully user-configurable dashboards (such as grafana).- Introduced significant improvements in system performance when dealing with large volumes of data, optimizing queries and batch processing. This resulted in an +85% reduction in the speed of response to requests and improved the user experience.- Maintained and developed NestJs applications working actively with RBAC and ABAC permissioning systems. Implemented Oauth/OpenID Connect (OIDC) authentication flows. Handled large amounts of data using MySQL.- Worked with golang's testify package, as well as Vitest and Playwirght to ensure correct operation and high code quality with unit and e2e tests.- Conducted CI improvement initiatives using CircleCI, including resolving flaky tests and reducing CI execution time through parallelism. Configured reports and test coverage, along with automations to make these artifacts available to the team.

- Responsible for developing new features, fixing bugs of Frontend using NextJs, Typescript, MaterialUI. - Maintain quality of code with linters (prettier, eslint, husky), test coverage (jest, react testing library) plus map and track erros with sentry.- Responsible for maintaining and deploying the enviroments of system using Amazon Web Services as CodePipeline, CodeBuild, Elastic Beanstalk and others.- Workflow based in Agile methods as Scrum and XP (Xtreme Programming)

High complexity project in the branch of gas station and convenience stores involvingcash balances, cashbacks and sales.- A freelancer project that I was responsible for building new features and maintaining the existing system. In this project I worked with React, Typescript, Redux-Saga, TailwindCss, Docker and other technologies, in addition to following designs alreadyready from the figma

Project -> Unbreakable Courts:I participated as a direct freelancer in the development of the site that complementsBudweiser's Unbreakable Courts campaign for the Cannes Lions advertising festival.A simple website in terms of technology, but complex and rigorous in terms of design.Built with HTML, Css, Bootstrap, JS and Google Maps APi.

Building and maintaing ERPs (Enterprise resource planning) and sites, using ReactJs, NextJs, Typescript, styled-components, TailwindCss, React-hook-form to form validation and Storybook to documentation