He is the current Secretary of Infrastructure, Communications and Transportation since November 15, 2022 during the presidency of Andrés Manuel López Obrador.
Between 2009 and 2013 he was Director of Hydrocarbons Projects in the Investment Unit of the Ministry of Finance and Public Credit (SHCP).
During his administration, he finished dispatching the last administrative pending for the inauguration of Line 3 of the Guadalajara Urban Electric Train on September 12, 2020, and supervised the construction of the Toluca-Valle de México Intercity Passenger Train and the Lechería-AIFA Branch in the extension of System 1 of the Suburban Railroad of the Metropolitan Zone of the Valley of Mexico.
On November 7, 2022, Secretary of the Interior Adán Augusto López announced that Nuño Lara would take over as head of the Office of the Ministry of Infrastructure, Communications and Transportation to succeed Jorge Arganis Díaz Leal who was temporarily separated from his position for health reasons.
However, two days later on November 9, Andrés Manuel López Obrador announced that Díaz Leal would not return to the post due to the seriousness of his illness, and that Nuño Lara would longer succeed him as head of the Office.