Gian Sierra

is a passionate and driven coach at OPEX San Juan, where he has begun his promising career in fitness coaching. From his early days in middle school, Gian’s enthusiasm for sports and exercise science has profoundly shaped his approach to coaching. He excels in the pedagogy of exercise execution, with a specialized focus on soccer and Olympic weightlifting.

Gian’s coaching philosophy centers on crafting simple, sustainable, and scientifically backed programs that are as educational as they are effective. He holds a bachelor's degree in Physical Education with a minor in Exercise Science and has earned certification through the OPEX coaching program.

Beyond the gym, Gian is an avid enthusiast of history, sports, games, and science, continually engaging with his passions and broadening his knowledge base. His well-rounded expertise and commitment to both personal and athletic development make him a unique asset to the OPEX San Juan team.