Worked as a freelance Full-Stack Developer on a greenfield SaaS project, contributing to the system’s architecture, technical decision-making, and full-cycle development. Played a key role in defining the technical foundations of the platform, focusing on scalability, security, and AI-agent-oriented workflows, while collaborating closely with product management. Led the project initialization, including boilerplate setup, folder structure design, and technical documentation oriented toward AI agent integration and maintainability. Designed and implemented a relational data model using MySQL and Sequelize, defining core entities, relationships, and efficient querying strategies. Developed backend and frontend features using NestJS, React, Vite, and Tailwind, including reporting systems, notifications, and email services. Implemented security mechanisms such as role-based access control, MFA authentication, and data encryption in transit and at rest.

Worked on the development of features and resolution of issues within the Justo Pago web platform. This involved making updates across the backend, frontend, and database layers. Implemented updates and optimized database interactions, ensuring real-time data synchronization and efficient querying. Developed notification systems for communication via WhatsApp and email, leveraging a pub/sub event-driven architecture. Incorporated database modifications using TypeORM and SQL Server tools. Developed the chat feature utilizing React, Tailwind, NestJS, and MongoDB. Created a web user interface with various functionalities, employing tools such as Next, React, and NestJS.

Contributed to enhancing functionalities in the Soxial Leads Web Platform, a platform made by Xirect. This involved modifications in both the backend and frontend, as well as database optimizations. Contributed to the project from scratch by helping to create a minimum viable product. Incorporated database modifications using TypeORM and SQL Server tools. Developed the chat feature utilizing React, Tailwind, NestJS, and MongoDB. Created a web user interface with various functionalities, employing tools suchs as Next, React, and NestJS.

Worked on the development of functions and bug fixes within the Kargoru Web Platform, making changes in the backend, frontend, and database. At the same time, worked on the integration of external platforms such as WhatsApp, WordPress, Sucarga.com, among others. Integrated changes to the database with the help of TypeORM and Mongoose tools. Worked on the implementation of notifications via WhatsApp and email using NestJS and Mongoose. Developed a web user interface with several functionalities, using tools like Angular, RxJS, and NgRx.