stephanie hannon , google top dog on product management for ` civic engagement , ' will help hillary navigate the digital waters in 2016 .
hannon will oversee a team that develops websites , apps and other outreach tools designed to attract democratic voters .
tech gurus are in high demand among presidential campaigns .
rand paul poached ted cruz 's senior digital strategist away last year .
hillary has also filled a few key slots with obama white house aides .