In 1990, Martínez became the president of CANTV where he directed the privatization of the company, convincing president Carlos Andrés Pérez who until then opposed the idea. He was later appointed Minister of Transport and Communications by Pérez.[1]
In 1991, he declared that in addition to removing La Mancha Negra, a mysterious black substance that oozed from streets in Caracas, he would also remove residents near the Caracas-La Guaira highway as they "were part of the problem creating filters on the road".[2] In 2019, he was one of Juan Guaidó's top advisers and participated as a representative in a negotiation between the government and the opposition in Norway.
Miguel Cañas, Paúl Esqueda and Fernando Martínez Mottola, "Situación actual de la Informática y la Microelectrónica en Venezuela" (Present Situation of Informatics and Microelectronics in Venezuela). Published in Telecommunication Review of the Hispano-American Association of Research Centers and Telecommunications Enterprises (AHCIET), Year V, N-27, Nov.-Dec. 1987, pp. 37-46. (In Spanish)
On 26 March 2024, Argentine president Javier Milei confirmed in a press release that Martínez, along with Magalli Meda, Humberto Villalobos, Claudia Macero, Omar González, and Pedro Urruchurtu were being protected as guests in the Argentine ambassador's residence,[3] which underwent a series of two sieges that cut off power.[4] On 29 March, the Argentine government granted political asylum to the group after they formally requested it.[5][6]
Martínez Mottola died on February 26, 2025.[7]