I developed a fuel pump control system using socket connections for Android devices. This system communicates with fuel tanks at supply bases and manages the refueling of truck fleets, generating reports for analyzing fuel consumption and purchases. It also includes a fraud prevention system that validates the driver, vehicle, and attendant.I contributed to an expense management system for truck fleets, integrating a PIX payment system and enabling withdrawals at gas stations. This system reduced fraud rates by over 60% by utilizing standard cards.Additionally, I worked on refactoring and developing new features for a customer mobile application. One key feature I implemented was geolocation-based refueling, which uses vehicle tag proximity to reduce payment time to 30 seconds between customer and attendant while also lowering fraud rates.I also handled maintenance and refactoring for a gas station payment platform.

I worked on maintaining and developing a payment system, including payment splits and receivables anticipation. I integrated PIX, credit card, and boleto payments into a payment link and developed recurring payment systems for e-commerce. Additionally, I created a boleto payment system with credit card support, issuing a Bank Credit Note (CCB) to validate transactions.I contributed to a loan activation project using credit cards and ensured server compliance with PCI DSS standards. I also integrated with major BaaS and sub-acquirer providers, such as Celcoin, EntrePay, Itaú, BTG Pactual, and Pagar.me, among others. To enhance transaction security, I implemented biometric anti-fraud systems.

I provided consulting for a specific part of a project for a company that manages horizontal condominiums, developing a solution for a messaging system between the platform and its users.

I developed the product platform for an equipment manufacturer in the electrical sector, creating a multilingual single-page application (SPA) website optimized for translation and search engine indexing using SEO and WAI-ARIA. The platform was fully responsive with a mobile-first design approach. I integrated the product API using NestJS and implemented unit tests to ensure high code quality.

Gestão de laboratórios de informática para os setores públicos dos municípios, oferecendo suporte e soluções tecnológicas inovadoras para a administração pública local.

System Implementation: Responsible for the deployment of systems, ensuring they meet user needs.Performance Analysis: Evaluate the performance of deployed systems, identifying opportunities for improvement.Technical Problem Solving: Diagnose and resolve technical issues that arise during system operation.Project Analysis and Development: Participate in the analysis and development of system projects, from conception to delivery.Requirements Gathering: Collect and document requirements from stakeholders to ensure solutions meet expectations.Process Mapping and Data Modeling: Conduct business process mapping and data modeling to improve efficiency and organization of information.Client Support: Maintain good relationships with clients, addressing their demands and clarifying doubts.Training Sessions: Conduct training sessions with clients to ensure effective use of the implemented systems.Technical Visits: Perform technical visits to better understand client needs and provide on-site support.Report and Manual Preparation: Create detailed reports and user manuals for the systems, facilitating understanding and operation by users.

I have experience in infrastructure, where I installed and configured servers for both private and public sectors. I managed network systems, configured firewalls to secure operations, and worked with systems designed to prevent cyber threats.