Again, Matt is a designer and developer living in Appleton, Wisconsin.
tl;dr: he does a lot of web-related stuff.
His skillset consists of (but is not limited to):
Usability test creation, facilitation, and documentation
In addition to that skillset, his toolkit generally consists of (again, not limited to):
A notepad and pencil
Stacks of index cards and Post-it notes
A good Sharpie pen
Whiteboard markers (just in case)
Sketch + InVision for prototyping
HTML + CSS for prototyping
Scout-App for SCSS *
JS templating such as Handlebars.js *
Greensock JS or other animation libraries *
* (depends on the project)