Sierra holds her BA in International Environment and Development from the University of Colorado at Boulder, and her MA in Natural Resources and Environmental Security from the United Nations Mandated University for Peace in Costa Rica. Sierra is a graduate of the University of Colorado's INVST Community Leadership Program, and has lived and worked in a variety of settings across the globe. Through her unique experiences studying and working in Latin America, Africa, and home in Colorado, Sierra has developed a passion for working towards social and environmental justice through community engagement, leadership education, and empowerment of women. In addition to working with Un Mundo, Sierra also serves as International Communications Manager for Midwife International. Prior to her current positions, Sierra worked on outreach and development for organizations such as the Restorative Leadership Institute, University of Colorado Environmental Center, and Global Greengrants Fund, among others.