Gustavo D.

Full-stack Product Engineer

Systems Development Analyst
12/1/2022 - Present

Spearheaded the development of a Java web application focused on enhancing internal controls. Demonstrated expertise in utilizing Java for robust application development. Ensured seamless integration and deployment within existing systems, highlighting a strong proficiency in web application frameworks and methodologies. Enhanced skills in application performance optimization and system security to ensure sensitive data protection. Utilized tools and frameworks effectively to address specific business needs and streamline internal control processes.

Backend Developer
7/1/2021 - 11/1/2022

Demonstrated expertise in maintaining legacy desktop systems using C#.NET and web applications with Java, Grails, HTML, CSS, and JavaScript. Developed proficiency in creating REST endpoints in C#, utilizing Entity Framework with Oracle Database for efficient data management and integration.

Java Developer
10/1/2020 - 6/1/2021

Developed and maintained Java web applications using Spring Boot framework. Utilized Oracle database in conjunction with Flyway for database migrations. Conducted unit testing with JUnit to ensure code reliability and performance.

Dotnet Developer
7/1/2013 - 10/1/2020

Specialized in union management software development along with Point of Sale (POS) and Enterprise Resource Planning (ERP) systems. Expertise in creating and optimizing reports using Crystal Reports. Proficient in integrating with various fiscal printers such as Epson, Elgin, and Sweda ECFs, as well as SAT devices from Tanca, Elgin, Bematech, and Dimep. Demonstrated development skills using MySQL databases and contributed to maintaining integrations with Bematech and Daruma ECFs. Experience in the development and maintenance of NFCe and NFe issuance systems.

Information Systems at Pontifical Catholic University of Campinas
2009 - 2012