David Paniz
São Paulo, Brazil
Summary
🤩
RockstarDavid Paniz is a seasoned software developer based in São Paulo with 17 years of experience building and architecting web applications using Ruby, Clojure, and Java. He brings a pragmatic blend of hands-on engineering and cross-functional experience, having contributed across QA, pre-sales, and business management. On open-source projects he has strengthened Java frameworks—adding charting downloads, Flex/GraniteDS integration, and build fixes to the vraptor MVC—and modernized validation logic in Caelum Stella by migrating validators to Bean Validation and improving testability. Comfortable across backend architectures and developer tooling, he focuses on maintainability and integration points that unblock teams. Known for quietly tackling build and test pain points, he pairs deep implementation skills with an eye for improving developer experience.
17 years of coding experience
English, Portuguese, Italian
Stackoverflow
21reputation
989reached
1answer
1question
Github Skills (13)
javas10
junit10
mockito10
java10
bean-validation10
flex9
jsp7
jspx7
ant6
mongodb6
mongoid6
ruby-on-rails6
spring5
Programming languages (5)
Github contributions (5)
caelum/caelum-stella
May 2011 - Jul 2011
O Caelum Stella visa suprir as necessidades do dia a dia do desenvolvedor brasileiro
Role in this project:
Back-end Developer
Back-end DeveloperContributions:51 commits in 2 months
Contributions summary:David appears to have focused on migrating existing code to use Bean Validation. Their primary contributions involved refactoring several validator classes (CNPJ, CPF, AcceptAny) to leverage Java's built-in validation annotations. They also worked on migrating other components, such as "Choice," "Max," "Length," and "MaxElements," to Bean Validation. Additionally, the user added Mockito as a dependency and fixed tests, suggesting a focus on improving the project's quality and maintainability.
desenvolvedorbrasileirostellacaelumdia
caelum/vraptor
Oct 2009 - Apr 2011
Simple Java Web MVC Framework
Role in this project:Back-end Developer
Back-end DeveloperContributions:14 commits in 1 year 5 months
Contributions summary:David primarily contributed to the `vraptor` framework by fixing views, adding JFreeChart functionality, and addressing build-related issues. Their work included modifications to JSP files within the `mydvds` project, the creation of a download feature for JFreeChart, and resolution of Ant build configurations within the core vraptor project. The user also developed and integrated a flex plugin to integrate with Flex applications, adding a new service factory and support for GraniteDS, indicating a focus on extending the framework's capabilities.
java-webrestfulframeworkweb-mvcmvc
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