In 1862, Shunpei was chosen as one of the engineers, who were dispatched to the Netherlands by the Tokugawa shogunate when building Kaiyo Maru Warship was ordered.
1862年（文久2年）、俊平は、軍艦開陽丸建造を発注の際に徳川幕府がオランダに派遣した技術者の一人に選ばれる。