Soenjono complete his education he traveled in Department of United Kingdom in STC. He graduated with a B.A. Then he continued his studies to the University of Hawaii. In 1964, he successfully earned his m.a degree in English Applied Linguistics. Don't stop until there, continuing his education at again Soenjono Georgetown University. In 1967, he won his Ph.d. degree, to the field of Linguistics.
As one expert Soenjono bahasam pretty much contributed their knowledge abroad. For example, in 1968. He was appointed as a lecturer in the Indonesia language Victoria University, New Zealand. In 1970 until 1973, he became an Assistant lecturer at the University of Hawaii. Then in 1974 until 1979, he became Associate Professor at the same University. In the years 1980 to 1983, he became a Professor of languages at the University of Hawaii. After working as a teacher in Hawaii, in 1983 he returned to Indonesia. Since his return to Indonesia until now, Soenjono worked as a lecturer and researcher in Linguistics at the University of Atma Jaya.
In addition to served in the Sanata Dharma, he has also been a guest lecturer in 1983 to 1996 in IKIP Jakakartam and since the year 1984 till now became a lecturer at the University of Indonesia tamy.
In addition to engage as active as a lecturer at various colleges, she also had been the Acting Chairman in Pacific Languages at the University of Hawaii. Later in the year 1980 to 1983, beliay is trusted as Director for Language Institute at the University of AtaJaya in 1982 until 1987. In the year 1986 till 1991, Soenjono became Vice President at the University of Atma Jaya and in 1992 till 1996 he became Dean in Graduate School at Atma Jaya.