Jason Hartlove has a name and a rakish mug worthy of a soap-opera star, a resume that any Silicon Valley engineer would envy, and a bit of swagger as a turnaround CEO. He co-invented the optical mouse at Hewlett-Packard, ran a 3,000-employee manufacturing operation for HP spinoff Agilent in Malaysia, and set South Korea’s struggling MagnaChip Semiconductor on its current path to an IPO. “One of my investors said this—so I won’t claim it for myself—but I am a technology MacGyver,” Hartlove says. “If you give me some piece of technology, I can really figure out what to do with it.”