Manie Bosman graduated with a BA (Law) from Stellenbosch University in 1966 and a B.Juris from the University of Johannesburg in 1974. His first position was as a human resources manager with Anglo American, a role he left to become the PRO of the University of Stellenbosch. Thereafter, Manie joined Hofmeyr Van der Merwe & Botha in Johannesburg to become a junior partner.

In his role as panel attorney for the Road Accident Fund, a position he held for ten years, Manie provided defence against the then-largest claim in history, for R13 million by a citizen of the USA. Furthermore, in 2002, Manie concluded a claim for a Belgian doctor against the Road Accident Fund for the fund's largest payout at that time, R31 million. In 2008 he finalised a claim in favour of a Swiss client for R615 million, to date the largest successful claim against the Road Accident Fund.

Manie, a former mayor of Gordon’s Bay, is a former captain and president of the Strand Golf Club, where he is still an active golfer. He is also a member of the SA Tennis Association and a qualified tennis coach.