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. 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. The song has somewhere between 30 and 50 tracks recorded that need mixing. I'm interested in working with a very experienced mixer. I don't have a hard deadline for this.