- Adjunct research associate, Center for Research and Innovation in Translational Nutrition and Health, Hispanoamerican University, Costa Rica (CIINT)
- Alumna, Dannon Institute Nutrition Leadership Institute (Dannon)
- Scholar, Mixed-Methods Research Training Program for the Health Sciences (MMRTP)
- Co-chair, Committee for the Advancement of Women Faculty, Harvard Chan School (CAWF)
- Global Nutrition and Epidemiologic Transition Initiative, Harvard Chan School (GNET)
- Mentee, NIH-NHLBI R25 “PRIDE” (Programs to Increase Diversity among Individuals Engaged in Health-Related Research) Summer Institute on Mentoring Researchers in Latino Health Disparities, San Diego State University (PRIDE-San Diego)
- Affiliated Investigator, Hispanic Community Health Study/Study on Latinos (HCHS/SOL)
- Affiliated Investigator, CPHHD-Boston Puerto Rican Health Study (BPRHS)
- Chief Public Health Research Advisor, FDI Clinical Research, Puerto Rico (FDI)
- Member Investigator, Latino Network for Diabetes Translational Research
Josiemer Mattei
