Ömer has dedicated over 20 years of his life to the study and practice of martial arts. He has taught thousands of students from all backgrounds and age groups, national and international, male and female, in different martial arts. He is experienced and holds instructor certificates in 13 martial arts and combat sports, including EBMAS Wing Chun, Rene Latosa Escrima, Kickboxing, Muay Thai, Wushu Sanda, Aikido, Judo, Wrestling, Ju-Jitsu, Mixed Martial Arts (MMA), Chess Boxing. He is representative of Ju-Jitsu, Chess Boxing and MMA Federations for Gaziantep province. He gave self-defense courses to staff of various organisations including World Vision, People in Need, and the Turkish Police Association. He implemented workshops and "Sport-for-Development" activities on behalf of the German Olympic Sport Confederation (DOSB), including self-defense for women, and working with groups of Turkish and Syrian (semi-) orphaned children.