Giancola debuted on the MTV reality show Jersey Shore in August 2009. She has since appeared with her cast mates on The Tonight Show with Jay Leno, The Ellen DeGeneres Show, The Wendy Williams Show and Live with Regis and Kelly. Giancola and her Jersey Shore co-stars appeared in the 2012 film The Three Stooges.
In 2011, Giancola endorsed a fragrance called Dangerous, which is available for both men and women. Shortly after endorsing Dangerous, she endorsed another fragrance called Dangerous Desires. Her passion for creating a fragrance line was inspired by Paris Hilton.
In 2013, Giancola launched her online clothing line Sweetheart Styles. Her clothing line includes active wear, dresses, tops, bottoms, and outerwear. She also has her own line of clutches, bracelets, earrings, and necklace sets.
In 2015, Giancola became a co-host on the podcast called Just Sayin, where she joins relationship expert Siggy Flicker and TV host Clare Galterio to discuss their respective personal lives and the latest Celebrity rumors. The podcast is made in New York City through the by Loud Speakers Network.
In 2018, Giancola announced she would not return for the Jersey Shore reboot, Jersey Shore Family Vacation, to avoid "potentially toxic situations" and to focus on her "businesses and relationship".
