In 2002, he obtained a bachelor's degree in business administration from the American University of Puerto Rico, graduating magna cum laude.
In 2005, he finished his master's degree in human resources from Caribbean University, graduating summa cum laude.
In 1997 he started working for the State Insurance Fund Corporation where he supervised the Department of Radiology.
Martínez began his political career in his teens, becoming president of the PNP Youth in Ciales by 1986.
In 2007, he presented his candidacy to the Senate of Puerto Rico for the District of Arecibo winning the 2008 PNP primary.