Hanshi Peter Ciećwierz began his martial arts education in Warsaw, where he trained in judo, Shotokan karate, Kyokushinkai, and boxing. In 1984, he emigrated to the United States, where he continued his development under the guidance of distinguished masters, including James Takemori, Joe Lewis, and Frank Dux. As an instructor, he led classes at prestigious institutions, including Georgetown University and the National Institute of Health. In 1995, he received the title of 5th Dan from Grand Master Taika Seiyu Oyata, and in 2005 the title of Kyoshi along with the 7th Dan rank. Since 1990, he has been running his own dojo, and in 2001 he founded the Polish Okinawan Kempo Federation, which later expanded into an international organization.

In 2016, he created his own system, Shiro Washi no Te, combining his decades of experience in martial arts, and he currently teaches worldwide. Hanshi Ciećwierz was later awarded the 9th Dan rank by Hanshi Tetsuhiro Hokama, one of the highest ranks in martial arts, recognizing his mastery and contributions to the development of Okinawan Kempo.