Need 1 song mixed and mastered ASAP for a MAJOR opportunity

We have been given a major opportunity and have been given the instruction to have one of our unreleased tracks ready in just a weeks time. Our track falls underneath the POP/Futurebass umbrella but definately has some elements of Rnb in there. We have the track produced and the vocals laid down. We are looking for a sound engineer that can mix and master, as well touch up vocals, to a professional level as this is an opportunity with a label that we cannot afford to miss. We can send stems over immediately. Thank you so much and we hope that somebody can help us.

Additional info:
The song has somewhere between 10 and 30 tracks recorded that need mixing. I need the vocals tuned as well. I'm interested in working with a very experienced mixer. I'll need you to master it too if possible.