This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a OneSource Support Specialist (CST) based in the United States. This role offers the opportunity to make a meaningful impact by supporting patients and caregivers throughout their treatment journey.You will serve as a trusted point of contact, providing personalized guidance, education, and access support for individuals managing rare and ultra-rare diseases.Working within a collaborative patient services team, you will help remove barriers to treatment and improve the overall patient experience.The position combines healthcare support, case management, reimbursement coordination, and relationship-building with patients, caregivers, providers, and internal teams.You will use your communication skills, empathy, and problem-solving abilities to deliver high-touch support in a patient-focused environment.This fully remote opportunity is ideal for professionals passionate about healthcare access, advocacy, and helping people navigate complex treatment journeys.