He then studied agriculture at the Gadjah Mada University and graduated with an engineer's (Ir.)

[1] Sujamto began working in the government in 1965 and became the head of the planning bureau of the Department of Public Irrigation.

[1] In June 1989, Sujamto was appointed by the Governor of Central Java as the provincial secretary.

[3] He then became the vice governor of Central Java for development affairs on 21 November 1990, replacing Soeparto Tjitrodihardjo.

[1] On the afternoon of 10 June 1994, Sujamto was working as usual when he complained that he was suffocating.