Professor extraordinarius at the Max-Planck Institute for Biogeochemistry (DE)

Assistant Professor at the University of São Paulo (BR)

Professor at Friedrich Schiller University Jena (DE)

Research Scientist at Harvard University (US)

Technician (former) at the Aquatic Geomicrobioloy Dpt/FSU Jena (DE)

Professor at the University of São Paulo (BR)

Professor at the University of São Paulo (BR)

Research Scientist at the Max-Planck Institute for Chemistry (DE)