Dr. Casillas has over 20 years of industry and academic experience in monitoring, evaluation, assessment, learning, and applied research. She has extensive experience designing and implementing culturally responsive capacity building and evaluation frameworks, with an emphasis on education and healthcare. She uses a systems approach to integrate the social and organizational context into program strategy and evaluation.

Dr. Casillas is a thought leader in the evaluation field and holds ongoing leadership in the American Evaluation Association. She has published on issues regarding equitable, culturally responsive practices in evaluation and applied research, has taught graduate level courses and sought-after workshops, and continues to influence the field through her teaching, publications, workshops, mentorship, and consulting practice.