Research Instructor, Department of Microbiology, Faculty of Sciences, University of Salamanca, Spain.

Visiting Associate, Section on Enzymes and Cellular Biochemistry, NIADDK, NIH, Bethesda, Maryland, USA.

Scientific Collaborator (Assistant Professor Equivalent), Institute for Microbial Biochemistry, National Research Council, Spain.

Research Assistant Professor, Department of Biochemistry, School of Medicine, Georgetown University, Washington, D.C.

Adjunct Scientist, Laboratory of Biology, DCE, National Cancer Institute, NIH, Bethesda, Maryland.

Associate Professor and Head, Experimental Carcinogenesis Laboratory, Departments of Radiation Medicine, and Biochemistry and Molecular Biology, Georgetown University Medical School, Washington, D.C.

Co-Leader, Molecular Targets & Therapeutic Resistance Program, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, D.C.

Co-Leader, Molecular Oncology Program, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, D.C.

Special Diploma to the 2nd Best Project at the National Level Competition for the "Philips
Award", for Researchers Younger than 21, Madrid, Spain.

Granted with the Certificate of Pedagogical Aptitude by the Institute for Educational
Sciences of the University of Salamanca, Spain.

Special Graduation Award from the Biological Sciences Section of the Faculty of
Sciences, University of Salamanca, Spain.

Award from the Rectorate of the University of Salamanca to the Best Graduation Project
from all the Sections of the Faculty of Sciences, University of Salamanca, Spain.

"Victor de Plata" for Academic Achievement, from the General Secretary of Education,
Madrid, Spain.

National Prize "End of Graduation" to the Best Graduate in Biological Sciences of Spain,
granted by H.M. the King Juan Carlos I, Madrid, Spain.

Special Award to the Best Ph.D. Dissertation, Faculty of Sciences, University of
Salamanca, Spain.

Honorary Member "Instituto de Estudios Manchegos", National Research Council of
Spain.

“Caballero Andante Award” for Scientific Research Excellence, Quijote 2000
Foundation, Ciudad Real, Spain.

Granted with “Tenure” at the Departments of Radiation Medicine and Biochemistry and
Molecular Biology, Georgetown University Medical Center, Washington, D.C.

Nominated “Distinguished PBL Tutor”, School of Medicine, Georgetown University
Medical Center, Washington, D.C.

Vicennial Medal for 20 Years of Full-time service at Georgetown University.

American Association for the Advancement of Sciences

Sigma Xi (1997- present, Treasurer, Georgetown University Chapter)

American Association for Cancer Research

Radiation Research Society

American Cancer Society's Georgetown University Institutional Grant Review Committee.

Radiation Medicine Faculty Search Committee.

Georgetown University Institutional Biosafety Committee.

Radiation Medicine Cesium Irradiator Oversight Committee.

Lombardi Cancer Center “Study Section” Committee

Committee on Admissions and Graduate Students, Biotechnology Master
Program.

Grievance Code Committee (alternate), Georgetown University

Executive Committee, Lombardi Comprehensive Cancer Center

Performance Evaluation Committee, Lombardi Comprehensive Cancer Center

Chair, Georgetown University Institutional Biosafety Committee.

 Committee of Admissions, Georgetown University School of Medicine