Your resume must also demonstrate at least one year of specialized experience at or equivalent to the GS-11 grade level or DP-03 pay band in the Federal service or equivalent experience in the private or public sector. Specialized experience must demonstrate the following: 1) Designing, developing, and maintaining code for next-generation mission planning solutions; 2) Designing and implementing software for quality, robustness, and scale; 3) Collaborating with Human-Factors Engineering for User Interface design; and 4) Participating in established DevOps and DevSecOps practices. Additional qualification information can be found from the following Office of Personnel Management websites: https://www.opm.gov/policy-data-oversight/classification-qualifications/general-schedule-qualification-standards/0800/files/all-professional-engineering-positions-0800.pdf https://www.opm.gov/policy-data-oversight/classification-qualifications/general-schedule-qualification-standards/1300/physics-series-1310/ https://www.opm.gov/policy-data-oversight/classification-qualifications/general-schedule-qualification-standards/1500/mathematics-series-1520/ 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.