Hello Mark, thank you for your interest in wanting to work with us on our project. As of right now we are in the very early stages of development so a music/sound designer is not a role we are looking for. As of right now a Game Designer and Level Designer are the required roles.
However, while we already do have a composer and SFX designer on the team this may be subject to change/require more. I looked through your work, you've done great so far so well done. I'll be keeping you in mind throughout our development process. Do you have a Discord account?