Amazon.com Inc. wants to hire more than 1,900 permanent workers in Colorado, part of a larger push to add 100,000 workers nationally. “These are full-time and part-time roles across our facilities that we are building and opening,” said Av Zammit, a spokesperson for the Seattle-based online retailer and technology company. Many of the jobs involve picking, packing and shipping orders at the company’s four large fulfillment and sorting centers in Colorado.