Andy Hertzfeld net worth: Andy Hertzfeld is an American computer scientist and inventor who has a net worth of $50 million. Andy Hertzfeld was born in Philadelphia, Pennsylvania in April 1953. He was a member of the original Apple Macintosh development team. Hertzfeld went to work for Apple Computer after buying an Apple II. From 1979 to 1984 he worked as a designer for the Macintosh system software. After leaving Apple, he went on to co-found the companies Radius in 1986, General Magic in 1990, and Eazel in 1999. Hertzfeld helped Mitch Kapor promote open source software with the Open Source Applications Foundation in 2002. In 2005 he joined Google and was the key designer of the Circles user interface in Google+ in 2011. In popular media, Hertzfeld was portrayed by Elden Henson in the movie Jobs and by Michael Stuhlbarg in the film Steve Jobs.