PhD, Eng, a researcher at the Wroclaw University of Science and Technology, a mountaineering instructor. Born in 1938 in Grodno, lives in Wroclaw. Has been climbing since 1959, firstly in the Tatras (five new routes), later in the Alps, Pamir-Altai (five virgin peaks) and Pamir. Between 1969-2003 participated in nine expeditions to high  mountains, e.g. the ones led by Andrzej Zawada. They included: the expedition during which the Poles made the first ascent of Kunyang Chish (7852 m) in 1971 and the expedition to Mount Everest (8848 m) in 1980  during which Polish climbers were the first in the world to ascend the summit in winter.

Jankowski was a member of the board of the Polish Mountaineering Association (1977-1992) and the vice-president (1995-1998). He was also president of the Alpine Club in Wroclaw (1974-1980) and for many years a member of the board. As a licensed ham radio operator he organized radio communication during expeditions and was the originator and founder of the Polish Mountaineering Association communication team created in 1980.

Since 1964 he has been a mountaineering instructor, each summer and winter he trains young people at the Central Training Center of the Polish Mountaineering Association on the Hala Gąsienicowa glade. He is co-author of the book “The Last attack on the Khunyang Chhish” (1973), author of many articles in the “Taternik” as well as numerous photos and panoramas.

He has been twice awarded with the Gold Medal “for outstanding sports achievements”, the Gold Cross of Merit, as well as the “Fair Play” of the Polish Olympic Committee. He is an honorary member of the Polish Mountaineering Association (PZA).