Onesmo Mpunja was born in 1966 at Madaba Village Songea rural district, Ruvuma region. Southern Tanzania. At present Lives temporary in Njombe, Tanzania. He completed Secondary School Education in 1985 at Likonde Seminary. He later went through a years accountancy course at St Joseph's College Tanga (1988 - 1989) where he was awarded with a certificate.
He currently work working on a temporary basis as an accountant with Njombe Savings and Credity Cooperative Society.
He joined Sylvestre Kisite in 2009 to establish the SALISU and he was appointed the Financial Director .
He loves everybody. He is very interested in Organic Farming and Enviromental Conservetion . He is married and a father of four. His hobbies are in sports, reading books, listening to music and movie watching.
He speaks Bena, Swahili and English.