Amazon.com Inc. may lag Google Inc. in the smartphone market, but it is winning in at least one other category: employee attractiveness.

The number crunchers at Hinge, a social-networking app that matches young professionals, have found that workers at the online retailer are more sought-after than their peers at Google. Users swiped right on the profiles of Amazon employees, indicating they'd like to connect, about 14% more often than on the average Hinge profile, according to the data. Googlers' profiles were right-swiped...