Your resume must demonstrate at least one year of specialized experience equivalent to the next lower grade level (GS-11/12) or pay band (DS-04) in the federal service or equivalent experience in the private or public sector. Specialized experience includes the following: 1. Providing support for air-to-air, air-to-surface, surface-to-air, and surface-to-surface weapons system projects; 2. Providing expert communication and problem-solving abilities to address flight test program needs; 3. Developing operational concepts and scenarios for test and evaluation of weapons systems; 4. Applying operational concepts to weapon systems/flight operations projects. Additional qualification information can be found from the following Office of Personnel Management web site: https://www.opm.gov/policy-data-oversight/classification-qualifications/general-schedule-qualification-standards/#url=List-by-Occupational-Series 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.