I currently work for LiDCO as Lead UX Developer. I develop with QML 5.8 for UI prototyping.
As a front-end developer, I'm specialized in bootstrap, CSS preprocessors: less/sass, HTML, JavaScript and QML QT.
As a full stack designer I handle the complete design to the development process. I use Axure and Sketch for wire framing. Overall I'm 60% a designer and 40% a developer.