Meet Our Leadership Team
- “Winners are not those who never fail, but those who never quit!”
- “Character is more important than talent.”
Master Aaron Um
Founder & Grandmaster Instructor
Master Aaron Um is the founder of Golden Eagle Taekwondo and has dedicated nearly five decades to martial arts training, teaching, and leadership. Born in South Korea and raised in Spain, Master Um began Taekwondo at the age of seven. His journey later brought him to the United States, where he continued competing, teaching, and building martial arts schools devoted to excellence and personal growth. Although his background includes national and international competition success, Master Um believes medals are not the true purpose of Taekwondo. His mission is to use martial arts to develop the whole person—body, mind, and character. Through Golden Eagle Taekwondo, he teaches students to live with discipline, confidence, respect, honesty, humility, courage, and perseverance. His goal is not simply to develop strong martial artists, but to help children, teens, and adults become strong people who can overcome challenges and lead meaningful lives. Master Um believes true leadership is not about status or recognition. It is about serving others, lifting people up, and helping every student recognize their God-given potential.
Key Achievements
Our Instructors
World-class instructors with decades of combined national and international competition and coaching experience — dedicated to improving the lives of the students and families we serve.
Master Marlen Corrales
Operations Manager & Main Master
Master Marlen Corrales brings more than 25 years of Taekwondo experience as an accomplished international athlete, coach, and instructor. She represented the Mexican National Taekwondo Team for six years and competed successfully in major international poomsae championships. Her background in medicine, elite competition, and coaching gives her a disciplined and well-rounded approach to student development. At Golden Eagle Taekwondo, Master Marlen is committed to helping students build confidence, technical excellence, resilience, and strong character. She leads the Morton Ranch location while also supporting the growth, training standards, and daily operations of the Golden Eagle team.
Competition Achievements
- More than 25 years of Taekwondo experience
- Six years with the Mexican National Taekwondo Team
- Pan American Taekwondo Champion
- Pan American Open Poomsae Champion
- World Poomsae Championship competitor
- Medical doctor
Master Jahir
Main Master
Master Jahir brings more than 25 years of Taekwondo experience as an elite athlete, national-team member, and accomplished coach. He represented the Mexican National Taekwondo Team and earned medals and top placements at national, Pan American, U.S. Open, and international championships. His competitive background taught him the value of discipline, consistency, resilience, and attention to detail. As Main Master of the Fulshear location, Master Jahir combines high technical standards with positive and energetic instruction. He is committed to helping students improve their skills, develop confidence, and become stronger both inside and outside the Taekwondo school.
Competition Achievements
- More than 25 years of Taekwondo experience
- Former Mexican National Taekwondo Team member
- Pan American Junior Champion
- Three-time U.S. Open gold medalist
- World Poomsae Championship competitor
- National championship athlete and coach
Master Maria
Main Master
Master Maria brings more than 20 years of Taekwondo experience as a national-team athlete, medalist, coach, and instructor. She represented Mexico in national and international competition and earned medals at major events, including the U.S. Open and Pan American Taekwondo Championships. She also brings professional education in nutrition science, management, and project management. As Main Master of the Elyson location, Master Maria is passionate about helping students develop technical skill, physical confidence, discipline, and leadership. Her experience as both an athlete and coach allows her to guide students with high expectations, organization, and encouragement.
Competition Achievements
- More than 20 years of Taekwondo experience
- Former Mexican National Taekwondo Team member
- U.S. Open bronze medalist
- Pan American silver medalist
- Winner of more than 30 national and international medals
- Experienced national-level coach
- Bachelor's degree in Nutrition Science and MBA in Management
Master Nathan Um
Main Master
Master Nathan Um serves as the Main Master of Golden Eagle Taekwondo's Sunterra location and represents the next generation of the Golden Eagle legacy. He grew up on the Taekwondo mat under the guidance of his father, Master Aaron Um. Beginning competition at a young age, he advanced through local, state, regional, national, and international events, including USAT Nationals, AAU Nationals, the U.S. Open, and Pan American Taekwondo Union competitions. Through years of demanding training, Master Nathan learned that true strength is built through discipline, humility, consistency, and perseverance. Today, his greatest passion is helping young students develop those same qualities. Master Nathan has a natural ability to connect with today's younger generation while preserving the traditional values of martial arts. His goal is to build champions in life—not simply athletes who can kick and punch, but confident young leaders who live with respect, courage, honesty, and purpose.
Competition Achievements
- Lifelong Taekwondo practitioner
- National and international competitor
- USAT and AAU Nationals Gold Medalist
- U.S. Open competitor
- Pan American competition experience
- Youth leadership and character-development instructor
- Main Master of the Sunterra location