Your resume must demonstrate one year of specialized experience equivalent to the next lower grade level (GS-12/13) or pay band (ND-04) in the federal service or equivalent experience in the private or public sector as a professional engineer or scientist managing weapons control projects by overseeing the design, development, and testing of mechanical and electrical hardware to ensure technical accuracy of system operations. Additional qualification information can be found from the following Office of Personnel Management website: 0801 series: https://www.opm.gov/policy-data-oversight/classification-qualifications/general-schedule-qualification-standards/0800/general-engineering-series-0801/ 1301 series: https://www.opm.gov/policy-data-oversight/classification-qualifications/general-schedule-qualification-standards/1300/general-physical-science-series-1301/ 1515 series: https://www.opm.gov/policy-data-oversight/classification-qualifications/general-schedule-qualification-standards/1500/operations-research-series-1515/ 1520 series: https://www.opm.gov/policy-data-oversight/classification-qualifications/general-schedule-qualification-standards/1500/mathematics-series-1520/ 1550 series: https://www.opm.gov/policy-data-oversight/classification-qualifications/general-schedule-qualification-standards/1500/computer-science-series-1550/ 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.