Hi, I checked your JD. I have about 10 years experience in Unity3D programming, and made many projects on AR/VR/MR. During last 3 years, I worked on Vuroria, AR Foundation, and MRTK, with devices Oculus Rift, Vive and HoloLens. So I think I can give you all your firm needed.
Hope to hear from you.
And my profile for more. https://www.freelancer.com/u/JiphuTzu
Best Regards!