Brazil
Experienced Cross-Platform Mobile App Developer | .NET I have extensive experience in developing cross-platform mobile applications using Flutter and Native Android with Java and Kotlin. I have published apps on the Google Play Store and the App Store, positively impacting over 4,000 users. In addition, I specialize in .NET development, with expertise in creating robust Web APIs, desktop applications, and Windows Services using C# and VB.NET. My skill set also includes working with SQL Server for efficient database management. I have a foundational understanding of Python, with a focus on image processing using the OpenCV library. I'm currently open for international remote jobs
Maintained and modernized legacy applications using ASP.NET MVC, C#, SQL Server, and DevExpress Designed and optimized database queries, including performance tuning and data modeling in SQL Server Managed source control, branching strategies, and CI/CD workflows using Git and GitHub Supported and monitored production environments with Microsoft IIS and SQL Server Administered Windows Server and cloud infrastructure (VM provisioning, deployments, monitoring) Designed and implemented backend systems using ASP.NET Core, .NET 10, REST APIs, OAuth2 Development of frontend applications using Vue.js, Nuxt.js and Tailwind CSS Design and development of systems using PostgreSQL, Redis, Docker, and Linux environments Development of AI agents and automation workflows using Python, LangChain, and Agno Development of cross-platform mobile applications using Flutter (iOS and Android) Increased productivity using AI pair programing, orchestrating sub-agents using codex and claude code
Software Engineer focused on high-scale web and mobile. Expertise in bridging business rules with AI-driven mobile solutions, specifically within the automotive and financial sectors. Key Contributions Web & Mobile Engineering Architected and maintained scalable systems using ASP.NET MVC/Core and Flutter. Integrated Firebase and Vertex AI to deliver real-time features and AI-powered features. Impact: Streamlined operational workflows and real-time data processing. ERP Developed core ERP logic, defining business rules for complex tax operations (NF-e, NFS-e), invoicing, and financial workflows. Impact: Reduced manual overhead and increased profitability through automated compliance. AI & Vehicle Technology Contributed to the Mercosul License Plate Traceability System, supporting a fraud-prevention infrastructure handling 100K+ monthly registrations. Developed a standalone AI-powered Android application for vehicle validation, integrating AWS Rekognition, DataValid, and OBD-II hardware via Bluetooth to automate chassis and document verification. Impact: Enhanced national-scale regulatory compliance and data accuracy. System Design & Solution Architecture Architected an agentic validation system for high-concurrency image processing and fraud prevention, deployed on Linux EC2. The architecture was designed to minimize response times while maintaining cost optimization on AWS. Engineering & Strategy: Led requirement analysis and system design, selecting the tech stack to balance performance with maintainability. Infrastructure & Scalability: Implemented Nginx for load balancing and Docker for containerization. Used RabbitMQ to manage asynchronous messaging and event-driven workflows. AI & Observability: Leveraged LangChain to build autonomous AI agents for image validation. Integrated observability tools to monitor system health and performance. Impact: Delivered a scalable, low-latency solution that handled high-volume traffic with optimized cloud expenditure.
At LDN Softwares, I led the development of impactful solutions that improved business operations and fraud prevention, with a focus on mobile and web technologies. Key Achievements: Flutter Mobile App for Vehicle Registration Traceability: Sole developer of an app integrated with AI technologies (YOLO, Plate Recognizer API) and native Kotlin features to validate vehicle data, including license plates, VIN, and documents. Supported by an ASP.NET MVC web system, the app prevented fraud in over 100,000 vehicle registrations per month across Brazil. Mobile Sales Automation: Developed an Android app using Java to optimize in-store sales operations, allowing sales staff to access client purchase histories and integrate seamlessly with POS systems, reducing checkout times. E-Commerce and ERP Integration: Synchronized ERP systems with platforms like WooCommerce and Tray Commerce, enabling efficient multi-channel business management by automating stock, product, and order management. TEF Payment Enhancements: Implemented PIX and digital wallet integrations and modularized payment systems for improved flexibility and scalability. Impact: Prevented license plate cloning and improved vehicle traceability nationwide. Reduced checkout times and enhanced customer service for retail businesses. Enabled seamless integration between E-Commerce platforms and ERP systems, boosting operational efficiency. This role allowed me to develop advanced skills in Flutter, mobile and web development, AI integrations, and ERP systems, delivering high-impact solutions to complex challenges.
Focused on ERP Systems, PDV Integration, and Automation Solutions During my internship, I worked on maintaining and enhancing software solutions that improved business operations for clients managing multiple retail stores. My contributions covered desktop applications, backend integrations, and mobile development for inventory control. Key Responsibilities and Achievements: ERP and PDV Maintenance: Supported and maintained ERP systems and PDV (Point of Sale) desktop applications using VB.NET and SQL Server. Ensured the functionality of a REST Web API that synchronized data such as products, prices, categories, invoices (NFCe), and stock between ERP and PDV systems, enabling centralized control for businesses with up to 10 stores. Commercial Automation: Assisted with banking reconciliation processes, including importing OFX files for financial tracking. Integrated Gertec keyboards and pinpads to automate payment operations. Mobile Development and Legacy Systems: Began native Android development with Java and XML, focusing on consuming legacy web services (SOAP) via WSDL developed in ASP.NET (ASMX). Restored a critical stock control and transfer app for managing inventory between stores using barcode scanning, which had been non-functional before my involvement. Technical Support and Problem-Solving: Addressed technical issues related to Web API integrations and legacy system compatibility, ensuring system reliability and performance. This internship gave me valuable experience in software maintenance, backend integrations, and troubleshooting legacy systems, laying a strong foundation for my career in software development.
At Narf Informática, I gained hands-on experience in computer and server configuration and maintenance. I provided on-site support to clients, troubleshooting and resolving hardware and software issues on PCs and notebooks. My responsibilities included configuring Windows operating systems (XP, 7, 8, 8.1, 10), setting up software like Office, and supporting local ERP systems. This role taught me valuable customer service skills, including professionalism and effective communication when working at clients’ locations, and helped build a strong foundation in IT support and technical problem-solving.