Bronstein appeared in season four of the television program Road Rules, Road Rules: Islands, at age 18, and two years later published his first feature article in Maxim. At 21 he signed on for FHM, but took a brief break a few years later to co-host G4 Tech TV's Video Game Vixens. He also documented his sex life for Glamour[2] and wrote a book about his sexual activities under the alias "Allen Jake Bronstein"[3] He later worked in marketing, and founded a blog named Zoomdoggle with colleague Josh Spear.[4]
In 2009, Bronstein and Craig Zucker noticed rare earth magnetic spheres on YouTube and repackaged them as a popular magnetic desk toy called Buckyballs. In July 2012, the Consumer Product Safety Commission filed an administrative complaint against Buckyballs and similar magnetic toy companies, alleging that the balls present a safety risk when swallowed.[5]
In 2012, Bronstein founded the apparel company Flint and Tinder, which was acquired by Huckberry in 2016.[6]
In 2018, Bronstein became BuzzFeed's Head of Partner Innovation. In this role, he paired Tasty with LG Ovens for a cookie subscription program,[7] launched a 24-hour takeover of the BuzzFeed homepage to showcase Bumble's virtual first dating functionality,[8] opened a New York themed pizza parlor with Chase bank, the NY Knicks, and Run DMC[9] that would be named the 2019 Shortie Awards Best Location Based Experience,[10] and form the Adobe x BuzzFeed "Make The Feed" partnership, described by Adobe as their "most creative ever."[11]
Bronstein has been involved in a number of publicity stunts, such as bathing in the Bryant Park Fountain,[12] taking advantage of a loophole to get into the NBA draft,[13] auctioning on eBay the lead singer position in his band,[14] offering himself for marriage,[15] freeing a fish into New York's East River, launching a 50 Dates in 50 States quest by soliciting invites from women on the web,[16] and offering 1,000 strangers a hand-written love letter.[17]