Celestine is an Occupational Therapist/ Psychologist and specializes in evaluating and treating children and adolescents with ADHD and behavior disorders, and she also has broad experience in working with children and adolescence with different abilities, the gifted and talented. She has vast experience in clinical work with young adults on anxiety mood disorders. 

She is a part-time lecturer in Kenya Medical Training Centre Rehabilitative Science teaching community based rehabilitation and human development through a life span.Presbyterian University of East Africa (PUEA) where I lecture mental health in Occupational therapy.

She is among the pioneer team in the country in advocating and implementing inclusion education initiative in Kenya. She has 10 years experience in working with vulnerable groups in informal settlements of Nairobi where she initiated community based rehabilitation programs for persons with disability and their families.

She has taught workshops and gives frequent lectures for policymakers, parents, teachers and schools on behavior management at home or at school, ADHD & Autism treatment, sibling conflict, work-life balance, intervention for anxiety disorders and couples who want to enhance and improve in the quality of their relationship.