In addition to the Basic Education Requirements: Your resume must also demonstrate at least one year of specialized experience at or equivalent to the ND-04 (GS-12/13)grade level or pay band in the Federal service or equivalent experience in the private or public sector. Specialized experience must demonstrate the following: as a professional engineer or scientist leading technical projects or teams in radiographic inspection or test and evaluation to ensure adherence to quality and safety standards. Additional qualification information can be found from the following Office of Personnel Management website: 08XX: all-professional-engineering-positions-0800.pdf (opm.gov) 1301: General Physical Science Series, 1301 (opm.gov) 1501: General Mathematics and Statistics Series 1501* (opm.gov) Experience refers to paid and unpaid experience, including volunteer work done through National Service programs (e.g., professional, philanthropic, religious, spiritual, community, student, social). Volunteer work helps build critical competencies, knowledge, and skills and can provide valuable training and experience that translates directly to paid employment.