Here's a look at the companies tapping the brakes. Alphabet Inc., Google's parent company, has been decelerating its recruiting efforts. Chief Executive Officer Sundar Pichai told employees this month that—although the business added 10,000 Googlers in the second quarter—it will be slowing the pace of hiring for the rest of the year and prioritizing engineering and technical talent. "Like all companies, we're not immune to economic headwinds," he said.