Hi, I want to hire a nanny from Philippines. What is the process to sponsor a working visa for a nanny?

Honestly, hiring a foreign worker to be a nanny is an extremely difficult, time consuming, and expensive process. This is mainly because it difficult to establish that there is no United States citizen or permanent resident qualified for the position. You can read more about both nonimmigrant or immigrant visa options at http://myattorneyusa.com/employment-immigration and http://myattorneyusa.com/work-visas.