Len Joubert graduated at the University of Pretoria during 1974. For a short while he worked at the firm, Boogertman & Brink, to qualify for registration.
Len Joubert joined Interplan and was made an associate in the Windhoek office. After his return, he started the partnership Dry & Joubert in 1979 in Pretoria. The partnership was dissolved in 1993.
He started his own firm, Len Joubert Architects, in Benoni, on the 1st of March 1993. Through the associations and partnerships, a lot of experience has been gained on a wide front.