Working as a freelancer on Toptal's clients. Mainly working with .netcore, SQL Server hosted on Azure.• Implemented some web applications using ASP.NET Core, EF Core, SQL Server. Hosted entirely on Azure• Fully integrated the applications with many 3rd party APIs like SendGrid, Faxage, QuickBooks, Adobe PDF, Azure AD, Bing, Azure AD B2C• Improved a big application creating an API in order to reuse the main logic on other small applications• Built some web crawlers to retrieve data automatically from some websites that didn't have an API available• Built a robust micro-service to generate PDFs used by different applications• Built Power BI reports using data stored on multiple databases• Built an application to migrate a huge amount of data from a system to another with a huge model/logic difference• Developed several unit tests to assess the quality of the applications and ensure they will continue to work as expected after new developments

• Created a scalable backend for a web application that reads data from several 3rd-party APIs and spreadsheets, compiles and analyzes the data, and store it in an optimized way to quickly respond to front-end requests.• The back-end was built using .NET Core with SQL Server database, running on Amazon AWS with ElasticCache and S3 services. It provides a RESTful API to the frontend that is implemented using React.JS.• Developed several unit tests to assess its quality and ensure it will continue to work as expected after new developments

• Developed new features for Commercial Real State management web application in ASP.NET MVC and SQL Server hosted on Azure, including Properties, Tenants, Accounting, and File System features• Migrated a big document management web application from Classic ASP to ASP.NET MVC and SQL Server, hosted on Azure• Improved performance on many data loads in the document management application• Integrated the applications with several 3rd-party APIs like SendGrid, Stripe, and Azure Blobs• Developed several unit tests to assess the quality of the applications and ensure they will continue to work as expected after new developments

Intern from 2009 to 2010, System Specialist from 2011 to 2016.• Designed and developed many new features on our flagship software, which is used by the largest companies in the Brazilian energy market to manage their contracts, customers, portfolio, and finances.• Led small teams in many key new features development.• Designed an aspect-oriented programming solution on our C# desktop application in order to expose some key features of our UI components when running UI tests.• Researched and designed solutions for problems created by the change of the market rules promoted by the government.• Optimized software algorithms and database query performances.• Gathered requirements with clients and helped support and developer teams with questions about the energy market and our solutions.• Wrote tutorials, best-practice tips and requirements documents for the development and technical support teams.• The flagship software is a Windows Forms distributed system with WCF. It can connect to Oracle and SQLServer databases have several web services and connect with some other third parties systems. It also has an online application in ASP.NET MVC 5 integrated with the main software.• Led teams of up to 10 people (Developers and QA) to develop and deliver new features within deadlines with Scrum.

• Designed and developed a windows tray application to search and play videos from a web video database.• The application was built using C# Windows Forms