Since 2022, he has been featured on Telenoticias en Accion, a Telemundo Puerto Rico news show.
But Oppenheimer soon discovered that he really enjoyed communications better, so he transferred to the Universidad del Sagrado Corazón in Santurce, a ward of San Juan, instead.
Eventually, Oppenheimer landed a spot on WAPA-TV's (by now known as "Televicentro Puerto Rico") midday variety show, "Pegate al Mediodia".
[5] In 2022, it was announced that Oppenheimer was moving to Televicentro's main competitor, Telemundo Puerto Rico, to participate on their news show, "Telenoticias en Accion", with a segment named "Ottotecnologia" ("Otto's Technology") Oppenheimer is known for his thorough informative style making complicated concepts easy to understand to the viewer, often showing new gadgets and how technology products work on television news segments.
On one instance during his days at Televicentro Puerto Rico, he made a joke using the name of his then co-host, the late reporter Keylla Hernandez.