There is no fixed number that you can associate with hiring Node.js developers. Instead, it varies according to various factors, such as the size and complexity of the project, required development skills, years of experience, engagement models, geographic location, hiring options, and much more. In addition, each business has its set of needs and budgets. 

However, if you want a rough idea, the average cost of hiring a remote node.js developer would be somewhere between $30 per hour to $90 per hour.