He has been Head of medical services of Sevilla FC (2011-2014), external consultant of Real Betis SAD (2014/15) and Physician of the Spanish women's national soccer team (2015/16).
- He has also been director of department of sports medicine and health of the Andalusian Football Federation (1997-2002) and Director of the exercise physiology laboratory at Andalusian Center of Sports Medicine (1997-2010).
- In addition to his participation in several UEFA Europa League (2014 Champion with Sevilla FC), José Naranjo has worked as a sports doctor in World Championships in Athletics (1999), Rowing (2002) and futsal (2015).
- He is regular professor in undergraduate and graduate courses, national and international conferences, has 9 books published on exercise physiology.
- His research activity focuses on physiological responses and adaptations to exercise, where he emphasizes above all his extensive knowledge about heart rate variability.