On television, Jenkins was part of the main cast of Surface (2005–06), Viva Laughlin (2007), and Famous in Love (2017–2018).

He played lead roles in the television series Surface (2005–06) and Viva Laughlin (2007), and guest starred in episodes of CSI: Miami, House, CSI: NY, Without a Trace, The Bernie Mac Show, and Unfabulous.

[6] In 2009, Jenkins appeared in the film Aliens in the Attic, playing the lead role Tom Pearson.

In 2010, he appeared in the romantic-comedy Valentine's Day, playing Alex Franklin, the boyfriend of Emma Roberts' character.

Jenkins had a supporting role in the 2012 coming-of-age comedy-drama Struck by Lightning, which starred Chris Colfer, who also wrote the screenplay.