After gaining experience at several IT firms, Jun built his career at Apple Japan starting in 1995, where he developed features for the Japanese version of Mac OS. In 2000, he relocated to Apple’s US headquarters to join the engineering team developing core frameworks for Mac OS X. Following his return to Japan, he held engineering roles at EPSON and subsequently Microsoft, specializing in printer utilities, Office, and Windows. In 2014, leveraging nearly two decades of experience at the forefront of global technology leaders, he founded Fahne Corporation to provide specialized software development services.