An early intervention specialist aids families of young children (usually 0-3 years old) who have developmental delays or are at risk for them. As an early intervention specialist, your duties include assessing the child’s development and inquiring about contributing factors such as environment and medical history. You may work in the homes of individual clients, in schools alongside special education teachers, or in a therapy clinic. Your job is to oversee each case and arrange for necessary intervention, such as speech, physical, or occupational therapy.