Joko Santoso is an expert in Pencak Silat, a traditional Indonesian martial art. He runs a YouTube channel, Pencak Silat Channel, where he shares his knowledge and skills in silat. Joko is also a teacher at DF, where he continues to train and pass on the traditional martial art to his students. With his extensive experience in Pencak Silat, Joko is a well-respected figure in the martial arts community, and his work has helped promote Indonesian culture and values around the world.