Fernandez worked on the Cream Soda Computer with Steve Wozniak in 1971, the first computer designed by Wozniak and built using spare parts from Wozniak's job.[3] He would later join Apple and work on both the Apple I and Apple II personal computers, and in the 1980s was a member of the Apple Macintosh development team. He contributed to several user interface aspects of the classic Mac OS, QuickTime and HyperCard and owns a user interface patent granted in 1994. He was laid off from Apple in1993