Ralf was one of the co-founders of FastOpt in February 2000 in Hamburg by and has has a background in physics. He previsously conducted climate research at the Max-Planck-Institute of Meteorology in Hamburg.
Ralf first addressed Automatic Differentiation (AD) in the late eighties. In the early nineties he developed the Adjoint Model Compiler (AMC), a tool for automatic generation of adjoint code, for which he was awarded the Max-Planck-Society's Heinz Billing prize for scientific computing in 1995. In the second half of the nineties Ralf implemented the Tangent linear and Adjoint Model Compiler (TAMC), a successor of AMC.