A Gitorious developer manages tasks related to the Gitorious platform, an open-source application that offers a collaborative interface for Git repositories. Their duties include development and maintenance of software, troubleshooting technical issues, and optimizing the platform for user experience. They work with Git, a version control system, to manage and track changes to source code. They also collaborate with other developers, participate in code reviews and contribute to documentation. Their role is crucial for ensuring the platform's functionality and efficiency, supporting other developers in their work, and constantly improving the platform based on user feedback and technological advancements.