Looking to hire Zoho Developer for Zoho bookings integration

I have an web-app wherein I want to integrated appointment scheduling functionality using Zoho Bookings. Appointment scheduling call to zoho server should take place in the backend itself(not in the ui & dont want zoho login) I want to add following functionalities in my nodejs app with the help of zoho bookings - a) Getting all slots for a given staffId and a particular date. b) Create a slot for a given staff, given a particular date. I need someone who understands the Zohos architecture and can help me with the integration as per my usecase.