She met the pinnacle of her career when she was contacted by episode director Michael Cuesta for Showtime TV drama series "Dexter". She worked on 6 episodes of "Dexter" and won a Primetime Emmy Award in 2007 for Outstanding Single Camera Picture Editing for a Drama Series for the pilot episode, "Dexter". The episodes she worked on were ""Dexter", "Crocodile", "Popping Cherry", "Return to Sender", "Father Knows Best" and "Born Free"". Elena explaining why she took the job for "Dexter", said that she had always been drawn to darker features.