Contributed to the modernization of internal platforms at iFood, developing scalable solutions for delivery operations and customer support while working with modern frontend, backend, and API technologies. Key contributions: * Led the frontend migration of the Driver Management module from Jarvis, iFood's internal operations platform responsible for managing delivery partners. * Rebuilt the module using React and Styled Components, improving maintainability, scalability, and the overall user experience. * Designed and developed a dedicated Backend for Frontend (BFF) using NestJS, providing optimized APIs tailored to the frontend application's requirements. * Collaborated with backend teams to integrate the new frontend with existing services and support the migration from the legacy system. * Developed a GraphQL-based chatbot integrated with IBM Watson, enabling delivery partners to quickly access information, answer common questions, and receive self-service support through a conversational interface. * Worked closely with cross-functional teams to deliver high-quality solutions in an agile environment.

Contributed to the digital transformation of Itaú Unibanco's Corporate Banking (Business Banking) division by developing customer-facing applications, modernizing cloud-based solutions, and leading technical initiatives across strategic projects. Key contributions: * Developed a secure document-sharing platform that enabled business customers to exchange documents directly with the bank. Built the frontend using Angular and TypeScript, integrated with Spring Boot services, implemented automated tests with Karma, and ensured compliance with accessibility (WCAG) standards. * Contributed to the development of Itaú's Business Account Opening platform, a strategic initiative launched during the COVID-19 pandemic that enabled customers to open business accounts entirely online while physical branches were closed. * Helped modernize the bank's engineering workflow by participating in one of the first initiatives to move a product outside the legacy enterprise monorepo into an independent cloud-native architecture, with dedicated repositories, CI/CD pipelines, and AWS infrastructure. * In addition to frontend development, configured and maintained AWS resources, including AWS Lambda functions for log synchronization, frontend caching strategies, CI/CD pipelines, and observability platforms such as Dynatrace and Splunk, creating dashboards to improve monitoring and operational visibility. * Served as Tech Lead for the Business Customer Onboarding platform, leading the technical implementation of a guided onboarding experience that introduced newly onboarded customers to their accounts while promoting banking products and digital services. Supported architectural decisions, code reviews, and technical guidance for the development team.

Contributed to the development and evolution of CVC's customer platform, building scalable features for authenticated user experiences while working in a cloud-native environment with modern frontend, backend, and DevOps technologies. Key contributions: * Developed features for the authenticated customer portal using Next.js, React, and TypeScript, enabling users to manage their accounts, update personal information, access travel history, and view reservations. * Contributed to backend services built with Java and Spring Boot, supporting customer-facing functionalities and business workflows. * Worked with AWS SQS to support asynchronous communication between distributed services. * Participated in infrastructure-related tasks using Terraform and Kubernetes as part of the application's cloud-native environment. * Implemented and maintained automated testing using Jest for unit tests and Cypress for end-to-end testing, helping ensure application reliability. * Provided cross-team support by improving unit test coverage for an additional project, helping increase code quality and maintainability. * Adopted TypeScript as the primary language for frontend development, contributing to improved type safety, maintainability, and developer productivity. Since then, TypeScript has been my preferred language for all JavaScript-based projects.

Worked on large-scale enterprise and government applications for clients across the retail, banking, telecommunications, energy, and public sectors, contributing to the full software development lifecycle from implementation to testing and frontend architecture. Key contributions: * Enhanced an internal enterprise platform for Walmart Brazil using Laravel and PostgreSQL. * Developed a government application for SEFAZ São Paulo, building Angular-based frontend features and implementing automated testing with Karma, Jasmine, and Protractor. * Contributed to a debt renegotiation platform for Eletropaulo (now Enel São Paulo), developing frontend features with Angular and maintaining comprehensive unit and end-to-end test coverage. * Participated in the development of Santander's mortgage lending platform using Java, Angular, and Protractor. * Led the adoption of React and Redux in Oi's ERP modernization project by designing the frontend architecture, mentoring team members, and developing scalable frontend solutions using React, Redux, Sass, Mocha, and Protractor. * Developed React/Redux applications for the ADCC project, implementing unit tests with Jest and end-to-end tests with Cypress. * Built full-stack solutions for Oi's technician scheduling and rescheduling platform using React, Node.js, and Express, with automated testing using Jest and Protractor. * Developed features for Oi's field technician tracking platform using React, Node.js, and Express, ensuring code quality through unit and end-to-end testing.

Developed and maintained large-scale educational platforms supporting thousands of students, teachers, and administrative staff. Contributed to the design, architecture, and implementation of core academic, financial, and digital learning solutions while promoting modern software engineering practices across the development team. Key contributions: * Developed and maintained the organization's core School Management System, responsible for student enrollment, academic records, grading, teacher management, financial operations, and other administrative processes using PHP and PostgreSQL. * Designed and developed the school's Digital Library Platform, enabling the in-house publishing team to publish and distribute digital books accessible from both desktop and mobile devices. * Built a Gamification Portal that allowed students to play educational games, complete quizzes, share content, and participate in learning activities to earn bonus points throughout the school year. * Introduced Angular as part of the project's technology stack, modernizing frontend development and improving maintainability. * Promoted Object-Oriented Programming (OOP) best practices, significantly reducing code duplication and improving code organization and maintainability. * Introduced architectural patterns such as Service and Repository, encouraging a cleaner separation of concerns and a more scalable backend architecture. * Developed backend services using PHP, frontend applications using Angular, and automation scripts with Python. * Collaborated with product owners and development teams to continuously improve platform performance, maintainability, and developer productivity.

Developed backend solutions for e-commerce platforms, focusing on scalable business logic, payment processing, and subscription-based purchasing features. Key contributions: * Developed and maintained backend services for multiple e-commerce platforms. * Designed and implemented the Scheduled Pet Food feature, allowing customers to automate recurring pet food purchases through subscription-based ordering. * Integrated online payment gateways, including PagSeguro and other payment providers, enabling secure payment processing and transaction management. * Implemented business logic, RESTful APIs, and backend integrations to support online retail operations. * Collaborated with frontend developers and business stakeholders to deliver new e-commerce features and improve platform reliability.