Hello, I've 12+ years of software development experience in web as well as windows development. Few years back I worked on a biometric access control system so I've experience for such systems.
Need to discss further to clarify the scope of this project. Like when you say "cross-platform" - do you mean cloudbase or in a portable framework (i.e. .Net Core, Mono, ..). Also there're many face recognitation libraries like Microsoft Face API, OpenFace API, OpenCV, ... do you have any preference?
Let me know how we can clarify the requirements. Thank you for your time.
HVM