Dr. Jaramillo is double-board certified in diagnostic radiology and pediatric radiology. His greatest expertise and scientific contributions are in the areas of imaging of musculoskeletal disorders of childhood and pediatric magnetic resonance imaging (MRI).

Dr. Jaramillo has served as the president and chairman of the Board of Directors of the Society for Pediatric Radiology, and has served in multiple committees of various radiological organizations. He is a fellow of the American College of Radiology (ACR). Dr. Jaramillo has served as organizer of scientific meetings, both in the U.S. and abroad. He has received many teaching awards and in 2014 received the Pioneer Award of the Society for Pediatric Radiology. In addition, he has held appointments as an editorial board member of the journals Radiology, Pediatric Radiology, Journal of Magnetic Resonance Imaging and Journal of Computer Assisted Tomography. He is trilingual in English, Spanish, and French.