Erik Azar is a computer scientist with over 20 years of professional experience of architecting and developing scalable, high-performance desktop, web, and mobile applications in the areas of network engineering, system management and security, and enterprise business services, having worked in diverse positions in companies ranging from startups to Fortune 500 companies. He has been developing applications on macOS and iOS since attending his first WWDC in 2007, when Apple announced the initial iPhone. Erik is an expert developer and architect for Availity, LLC, based in Jacksonville, Florida, where he works with teams to deliver software solutions in the healthcare industry. Erik has performed technical reviews for several Packt Publishing books on Java RESTful APIs and security, enjoying the experience so much he decided to write his first book for Packt Publishing. When Erik is not being a geek, he enjoys spending time with his wife, Rebecca, and his three kids, and getting out to ride his motorcycle up and down the Florida coast.