$7,000 Sign-on bonus for qualified external candidates! Perform diagnostic MRI exams in a pediatric setting. Required Education and Experience Graduation from a Joint Review Committee approved program in Radiological Technology. Required Credentials Credential Pathway 1: Active ARRT certification in Radiological Technology (ARRT-R). Active Washington State RT certification (WA-RT-CERT). Active ARRT certification in MRI or obtain within 18 months of hire (ARRT-MR).