Rene Jimenez received his Doctor degree in engineering from Universidad Nacional Autónoma de México in 2006. Since the beginning of his career he has worked in multidisciplinary research projects addressing problems related to control, mathematical modeling, and recursive parameter identification of dynamical systems. As a doctor candidate, Rene Jimenez developed a new mathematical model for magneto-rheological dampers and worked in the design and practical implementation of new algorithms for parameter identification, state estimation, and control of civil structures under seismic excitation. Since 2009 he has been working in the design and control of new compliant actuators for robotic applications. His current work focuses on the application of control and parameter identification techniques to the development of an active lower-limb prosthesis within the CYBERLEGs project and the implementation of a novel two-degree-of-freedom compliant actuator for a biped robot within the H2R project.