He was the former and first President and CEO of Nokia Corporation that was formed in a 1967 merger between the three Finnish companies Nokia Company, Finnish Rubber Works and Finnish Cable Works.
In 1967, Suomen Kumitehdas and Suomen Kaapelitehdas (Finnish Cable Works) merged with the forest and power industry company Nokia Aktiebolag (Nokia Company) to form Nokia Corporation, the current telecommunications corporation.
Weckman worked as engineer in Russia 1909–1921 and later in Suomen Kaapelitehdas Oy or Finnish Cable Works (which in 1967 merged with two other companies to form Nokia Corporation, the current telecommunications company), where he served as longtime executive director until 1955.