Freelancing job board Upwork has released its quarterly skills index, and for the second time, blockchain was number one. This is the first time that a given skill has ever led the chart twice. "Blockchain (a decentralized way to record information digitally) shows huge potential for businesses, causing a spike in demand for experts familiar with the technology," Upwork said. "A recent Deloitte survey found that 74 percent of all respondents said their organizations see a 'compelling business case' for the use of blockchain."
Quite a few other development skills made the top twenty. They included Google Cloud Platform (2), Google App Engine API (7), SCORM (8), GitLab (9), Go development (10), Apple UIKit (11), enterprise architecture (12), TensorFlow (13), Apple Xcode (15), Node.js (19) and Scala development (20).