- Oil and Gas Project: Led packaging and delivery of the principal customer microservice application as an on-premises offline installer. This application was architected using React, .NET Core and Java for backend, GraphQL and Akka for integration, Postgres and MongoDB for data, NATS for messaging, and Grafana/Loki/Promtail for logs. Evolved backend code and managed Azure Pipeline CI/CD processes. - IoT Client Application: Focused on the integration between the React.js front-end and Microsoft Dynamics 365 using .NET API’s, Azure Functions, Azure Service Bus, Cosmos and GitHub Actions. Evolving backend code, managing CI/CD, and creating no-code solutions using PowerApps Flows.

Independently developed from scratch an application for planning repairs, equipment control, and cost forecasting at gas stations. Utilized .NET Framework, Windows Forms, and Oracle. Led the migration of a legacy VB 5 suite to a single .NET Windows Forms application, adding new features and remodeling current process. Responsibilities included architecture definition, database modeling, hiring and training, team management, and post-launch support. Technologies used include .NET Framework, Windows Forms, ASP.NET Webforms and MVC, JavaScript, jQuery, Oracle, and NUnit. Created many state machine flows for control, approval, ISO/SOX validation, and document management across multiple applications. Used .NET Framework, WCF, .NET Core 2/3, SQL Server, Oracle, Git, Jenkins, and NUnit. Developed and maintained an iOS mobile version of the commercial proposals desktop app, ensuring feature parity and synchronization. Used Swift 5, UI Kit, Storyboard, MVVM, Firebase, and AWS S3.

- Phone Call Monitoring App (TV Globo): Optimized and maintained an intranet website to reduce phone call costs, leading to significant savings. Utilized ASP Script, JavaScript, COM+, and Oracle. - Turnstile Access (TV Globo): Fixed the internal access control system. Worked with .NET Framework, VB.NET, ASP.NET Web Forms, JavaScript, jQuery, Oracle, and NUnit. - Authentication/Authorization Service (TV Globo): Maintained the authentication and authorization service, resolving critical issues. Used .NET Framework, C#, SQL Server, ASP.NET Web Forms, JavaScript, and jQuery. - Medical Supplies App (White Martins): Maintained a Windows Pocket PC mobile app for managing medical supplies. Worked with .NET Compact Framework, C#, DB2, and Oracle.

Maintained, integrated, validated, and evolved the intranet company’s new project. Fixed critical issues and evolved key modules. Developed and improved the performance of complex queries, functions, triggers and procedures, significantly reducing errors and processing time. Integrated, deployed and monitored a complex application architecture. I was awarded with the High Efficiency certification for outstanding performance and contributions to the company. - Techs: .NET Framework, ASP.NET Web Forms, C#, Vb.Net, JavaScript, PL/SQL, ClearCase, NUnit, SQL Server, Oracle, and Scrum.

Fixed issues and enhanced the intranet web application, which was designed to manage information from energy companies and enforce government policies through sanctions. In addition to using Visual Studio, I utilized Power Designer for modeling and documenting changes, PowerBuilder for data transformation, and Crystal Reports.

Fixed issues in the intranet telecommunications assets web application using ASP Script, HTML and JavaScript. Worked on data transformations and migrations between Oracle databases and SQL Server databases using PL/SQL and the Microsoft DTS tool.

Fixed issues and enhanced the intranet web application, which was designed to manage information from energy companies and enforce government policies through sanctions. In addition to using Visual Studio, I utilized Power Designer for modeling and documenting changes, PowerBuilder for data transformation, and Crystal Reports.