Hello!
I'd love to create this Windows Phone app for you! I have a lot of experience with Windows Phone apps (you can see apps I have published in the market here: [login to view URL]). I have also completed numerous Windows Phone projects on Freelancer.
I do not have experience with [login to view URL] specifically, but looking over their API it seems very straight forward. Also, I do have experience with the Azure mobile services API (including sending push notifications), and Parse seems pretty similar to Azure.
I downloaded your "WorkOnIT Personal Coach" (which I assume is the app this project is about, I can't be certain as the link you provided is down), and am confident that I can replicate the app on Windows Phone. Would you like me to keep the design the same, or adapt it to better fit Windows Phone?
Thanks for your time, and I look forward to working with you!