Hannelore Günther worked as a case worker and secretary at a temporary work agency, following her training as a qualified bank clerk. She acquired the entrance qualification for higher education extra-occupationally at the commercial evening school. In an insurance agency and an engineers' association, among others, she gained several years of experience in the commercial area. Hannelore Günther has been a staff member of the Hans-Bredow-Institut since 1996. After working as a secretary for four years, she changed to personnel management in 2000.