It's a large company and as with any big corporation it comes with office politics and a very corporate environment. Some thrive in this type of atmosphere but it's certainly not for everyone.
This is often done by hand on a piece of paper. The animator needs to excellent good drawing skills to visually explain the concept of the animation to a customer or design team. In some cases, the animator must also be able to create a storyline or assist the client in the storyline development.
Basic graphic design skills of layout and technical skills of web design are needed, but the illustrator doesn't have to have the advanced knowledge of a graphic designer. As either a graphic designer or an illustrator, you must have a portfolio that represents your creative style and range.