It is not easy try to translate the academic career in UCSC to "American rules", so I included a English version, based on "American rules", perhaps not the best export, and a Spanish version, based on UCSC's rules. It is important to remark that these are  not necessarily Chilean rules. 
- March 2005 - August 19, 2007:  Academic staff member of the Faculty  of Engineering, UCSC, Chile.
 - August 20, 2007 - May 4,  2010: Instructor at Department of Applied Mathematics and Physics, Faculty of Engineering, UCSC, Chile.
 - May 5, 2010 - November 20, 2011: Assistant Professor  at Department of Applied Mathematics and Physics, Faculty of Engineering, UCSC, Chile.
 - November 21, 2011 -  Today: Associate Professor at Department of Applied Mathematics and Physics, Faculty of Engineering, UCSC, Chile.
 
Spanish version (You should understand academic career in  UCSC, Chile, no Spain).
- Marzo 2005 - Agosto 19, 2007:  Académico Jornada Completa,  Facultad  de Ingeniería, UCSC, Chile.
 - Agosto 20,  2007 - Mayo 4,  2010: Profesor Auxiliar, Departamento de Matemática y Física Aplicadas, Facultad  de Ingeniería, UCSC, Chile.
 - Mayo 5, 2010 - Noviembre 20, 2011: Profesor Asistente,  Departamento de Matemática y Física Aplicadas, Facultad  de Ingeniería, UCSC, Chile.
 - Noviembre 21, 2011 -  Actualidad: Profesor Asociado, Departamento de Matemática y Física Aplicadas, Facultad  de Ingeniería, UCSC, Chile.