Need several songs mixed and mastered/ engineered

I’ve finished several songs and desperately need engineering mixing and mastering done as soon as possible in order to have the best sound quality I can possibly get.

Additional info:
Check out the song I attached. The song has somewhere between 30 and 50 tracks recorded that need mixing. I don't have a hard deadline for this. I'll need you to master it too if possible. I need the mixer to do some editing, time aligning and vocal tuning before mixing. I'm interested in working with a very experienced mixer.