Effective School Solutions (ESS) provides school-based mental health services to K–12 students across 12 states, bringing clinical care and programming directly into public schools. The per diem School-Based Therapist provides mental health support to students in the San Mateo, California area, helping them succeed academically, build resilience, and thrive. The role includes direct clinical care, family support, consultation with school partners, and collaboration with families and interdisciplinary teams. This is an as-needed position supporting assignments such as leave coverage. Clinicians may accept or decline assignments based on availability and may work occasional shifts, several days per week on an ongoing basis, or temporarily full-time during an extended leave assignment. The role does not have a consistent full-time schedule. The hourly rate is $55.00–$62.00, and the position is not eligible for benefits.