Working on the development, evolution, and maintenance of a SaaS platform focused on vehicle data lookups, credit analysis, digital certification, and integrations with external providers. •Development of scalable backend applications using NestJS, Node.js, and TypeScript •Construction and maintenance of web applications using React, Next.js, and TypeScript •Modeling, optimization, and maintenance of PostgreSQL databases using Prisma ORM •Development of secure and performant REST APIs with JWT authentication and RBAC-based access control •Implementation and maintenance of multi-tenant architectures focused on scalability and client isolation •Development of complex integrations with third-party APIs, including Facebook, iCarros, WebMotors, and financial and vehicle data providers •Participation in technical meetings with vendors and strategic partners to define and evolve integrations •Implementation of asynchronous processing and event-driven architectures using RabbitMQ, BullMQ, and Redis •Development of real-time features using WebSockets •Implementation of observability and distributed monitoring using Grafana •Documentation and standardization of APIs using Swagger/OpenAPI•Investigation and resolution of critical incidents in staging and production environments •Conducting code reviews, providing technical support to the team, and sharing knowledge among developers •Technical mentoring, developer support, and participation in the definition of solutions and technical direction of strategic features •Participation in architectural decisions, definition of technical standards, and continuous evolution of the platform •Administration of containerized environments using Docker and integration with AWS services (S3 and Amplify) Technologies: NestJS, Node.js, TypeScript, React, Next.js, PostgreSQL, Prisma ORM, Redis, RabbitMQ, BullMQ, Docker, AWS S3, AWS Amplify, Grafana, WebSockets, Swagger, JWT, RBAC, Git, and REST APIs.

Working on the development and maintenance of SaaS platforms and educational systems, contributing across the backend, frontend, and mobile layers. Main contributions: •Development of scalable backend services using Node.js, NestJS, TypeScript, and PostgreSQL •Construction of modern interfaces with React and Next.js •Contribution to the development of mobile applications using React Native and Expo •Implementation of efficient data fetching strategies with TanStack Query •Application state management with Zustand •Design and integration of REST APIs consumed by web and mobile applications •Development and execution of services in containerized environments with Docker •Participation in technical discussions, architecture decisions, and code reviews •Maintenance and evolution of systems in production, solving critical issues and ensuring stability •This role provided me with strong experience across the entire software lifecycle, from feature implementation to production maintenance.

Development and maintenance of corporate systems using ASP.NET Core, C#, Vue.js, and SQL. Responsibilities: •Implementation of backend services and APIs with ASP.NET Core •Development and maintenance of frontend applications with Vue.js •Writing complex queries and optimizing SQL database operations •Collaboration with development teams using Git and Azure DevOps •Participation in code reviews and improvement of the project's code quality •Use of Docker containers for development environments •Support for systems in production and implementation of system improvements

Provided technical support and infrastructure assistance for corporate systems. Managed incident tickets, installed/configured systems, and monitored networks.