I work for Canonical as the Ubuntu App Development Liaison in the Community Team. As such my role involves coordinating and representing Ubuntu App Development, grow the community and act as a liaison with app authors who target our platform.
As an Open Source contributor, I am mostly involved in app development and localization: I'm the main developer of Qreator, I lead the Ubuntu Catalan Translators team and I'm also a GNOME translator. In the past I've been involved in the translation of other projects, such as Debian or Mozilla.
If you've got any question about translating Ubuntu, or creating apps for Ubuntu, you're at the right place ;-)