Apple has snapped up another big hire in Nest's former head of technology, Yoky Matsuoka. Matsuoka, who left Nest in 2015, is joining Apple's ranks to work on the company's health-based efforts, including HealthKit, CareKit and ResearchKit.

Nest's former head of technology joins Apple

Fortune reports:

Apple said Matsuoka is working for chief operating officer Jeff Williams, who oversees the tech giant's growing number of health initiatives. Those efforts include the HealthKit framework for developing apps, ResearchKit for using mobile devices in medical studies, and CareKit to help individuals improve their own medical care.

Matsuoka also helped to co-found Google's secretive X lab in 2009 before going on to join Nest as its Vice President of Technology. As noted by Fortune, Matsuoka also previously served as a professor of robotics at both Carnegie Mellon University and the University of Washington in Seattle.