Technically you're already a Dev at this point, considering you already provided assets for us in the past. Seeing you being able to handle Source Engine related stuff, this seems great overall.
My only questions are, since you stated you also work with animations in SFM:
A. Is there a portfolio or examples of your animation skills? B. How experienced are you with SFM overall? This includes mostly stuff like animating (question above), and making posters / renders.