Ítalo – React, Node.js, Next.js

A leading modern media company delivering content across multiple high-traffic, white-label websites serving millions of users daily.

• Maintained and evolved the company's custom design system, improving consistency, accessibility, and development speed across brands;
• Built and maintained SEO-optimized, accessible websites with millions of daily users;
• Integrated headless WordPress via Relay and GraphQL to streamline publishing workflows;
• Shipped features daily and worked closely with the Product team to validate roadmaps, identify technical constraints, and ensure deadlines were met;
• Adapted to different projects, shipping features from day one;
• Delivered pixel-perfect implementations on a daily basis across white-label, fully customizable layouts.

A plafatorm that delivers reservation and licensing solutions for outdoor recreation agencies across North America.

• Shipped new functionality weekly, collaborating directly with Product to align delivery with business priorities and technical feasibility;
• Participated in backlog grooming and roadmap reviews, providing early technical input to avoid delivery bottlenecks;
• Upgraded legacy systems and core libraries (React, Bootstrap), reducing tech debt and improving maintainability;
• Developed a custom solution for SSR/SSG, increasing reliability of static builds and improving DX;
• Rebuilt the payment system to meet PCI compliance, saving over $100,000 in audit costs;
• Resolved critical production issues on the fly, contributing to improved uptime and user experience.

A Brazilian climate tech company focused on carbon credits and blockchain-based environmental assets to support rainforest conservation and corporate climate action.

During my time there, I contributed to several key projects:

• Carbon Credit Calculator — a white-label, Svelte-based embedded solution for partners (fuel suppliers, airlines) that generated custom multi-step forms to calculate emissions and enable compensation via blockchain-based carbon credits;
• Amazon Analytics Map Builder — a geospatial analytics tool visualizing layered statistical datasets across regions to support validation, comparison, and territory-level decision-making;
• Document Automation Pipeline — an HTML/CSS-driven system for generating dynamic reports.

• Led complex refactors to improve code readability, solve bugs, and strengthen overall architecture;
• Built features and dynamic layouts using React, Svelte, Next.js, Tailwind, and related technologies;
• Implemented complex, highly configurable UI layouts with multiple variations;
• Optimized applications for SEO performance using SSR and SSG with Next.js and SvelteKit;
• Developed and maintained backend services across NestJS and Golang codebases;
• Partnered closely with Product to deliver user value and clarify technical requirements;
• Contributed in a fast-paced Scrum and Kanban environment;
• Created internal guidelines, documentation, and shared libraries;
• Reviewed code, mentored teammates, and drove continuous quality improvements.

A centralized integration platform that unifies fuel management, vehicle telemetry, and compliance data, giving fleet operators a single view of light-vehicle operations and performance.

• Led large-scale refactors of NestJS microservices and React frontend architecture;
• Built features and layouts using React, Next.js, MUI, Tailwind, and related technologies;
• Maintained and extended backend services on NestJS;
• Set up multi-environment infrastructure on AWS
• Established coding standards and best practices to support team growth and knowledge sharing;
• Implemented architectural and event-driven patterns to improve microservice structure and asynchronous processing;
• Worked with ECS and AWS Lambda for containerized and serverless deployments;
• Designed and implemented CI/CD pipelines from scratch, helping establish a strong continuous delivery culture;
• Partnered closely with Product to deliver user-facing value;
• Contributed in a fast-paced Scrum and Kanban environment;
• Supported process improvements to maintain an efficient and healthy team workflow.

A public feedback app that enables citizens to report and track issues across São Paulo’s public schools.

• Built camera and file system features to support video and image capture and deployment;
• Reworked video display functionality and resolved rendering-related issues;
• Implemented and refined responsive layouts across devices;
• Delivered general quality-of-life improvements to enhance usability and stability.

A mobile dating app that connects people based on shared interests and verified profiles to help them find dates or meaningful connections.

• Refactored a major part of the system to align with updated architecture and requirements;
• Rebuilt the routing system according to the new product specifications;
• Rebuilt most app screens and shared UI components;
• Implemented Redux architecture (React-Redux) for scalable state management;
• Developed real-time chat functionality using Socket.io, including the UI/UX layer;
• Built a check-in feature with Google Maps integration;
• Mentored and supported new team members.

A live streaming platform for capturing and broadcasting video in real time.

• Integrated PagSeguro payment services into the platform;
• Consumed streaming APIs to deliver live video to clients;
• Built custom video controls to manage stream changes and user interactions;
• Adapted Fullscreen API behavior to work consistently across platforms and browsers;
• Integrated chat APIs and implemented dynamic DOM updates to reflect user preferences and visual effects;
• Designed a reusable system for delivering real-time feedback to users through animated UI elements;
• Built and refined responsive layouts using Flexbox.