Eric went to San Beda College for his high school education. He was a member of the Red Cubs, the school's varsity basketball team and was one of the players who were instrumental in giving the school a string of championships.
Altamirano was signed as a rookie free agent by Alaska in 1989. He wasn't really able to prove his worth in the pros, playing back-up to the starting point guard of his team. He also played for Pepsi and Shell. He is now the Program Director for the National Basketball Training Center, a grassroots program for Philippine Basketball. In 2004, he also created the Coach E Basketball School.
Coaching career
Collegiate coach
Altamirano ventured into coaching after retiring from playing. His first try was in 1996 when he led the University of the Philippines to a Final Four finish. He was the head coach of the National University Bulldogs from 2011 to 2016. He steered the Bulldogs when the team won their first UAAP men's basketball championship after 60 years in Season 77 men's basketball finals in 2014. After an unsatisfactory performance in Season 79, Altamirano and the rest of his coaching staff led by Vic Ycasiano, Joey Guanio, Paolo Layug, and Anton Altamirano filed their resignation. On December 7, the management of the NU Bulldogs accepted the resignation letter of Altamirano.
Altamirano won two championships in the PBA. Before leading Purefoods to a PBA title in 1997, he was Chot Reyes' assistant coach at Purefoods in 1995 until 1996. After leading the Cowboys in the All-Filipino Conference, he moved to the Mobiline Phone Pals and gave them a championship, the 1998 PBA Centennial Cup. He returned to Purefoods and gave them a string of decent finishes. He left Purefoods, after being selected by Jong Uichico as the RP men's basketball team assistant coach. After 2 years of not coaching a PBA team, he coached the Coca-Cola Tigers during the 2005 PBA Fiesta Conference. Eventually, he was reassigned and appointed as the Project Director for the San Miguel All Stars.
National team coach
He was the head coach of the Nokia Pilipinas Under 18Men's basketball team. Handled of the Nokia Pilipinas Men's National under-16 national basketball team of the Philippines, that placed 4th in the Fiba Asia U 16 Men's Tournament in Johor Bahru in November 2009., and Project Director of the National Basketball Training Center of the Samahang Basketbol ng Pilipinas, the country's national basketball federation.